[Lift] Re: Lift 1.1 Milestone 7

2009-10-26 Thread Viktor Klang
Folks,

may I suggest cutting a Lift 1.1 Milestone 7 branch and deploy from that?
(It'd eliminate the potential problems of synchronizing on a master/HEAD
freeze)

On Tue, Oct 27, 2009 at 12:18 AM, David Pollak 
feeder.of.the.be...@gmail.com wrote:

 Folks,

 We are scheduled to release Lift 1.1 Milestone 7 on Wednesday November 4th.

 We would like to release M7 against Scala 2.7.7 final if EPFL's schedule
 can accommodate this.

 We are going into code-slush on Thursday October 29th (this means we're not
 going to make material changes to the codebase unless it's to fix a material
 bug).

 Please post any blocking defects to this list (with links to the ticket).
 We'll endeavor to close any of these defects this week.

 If you're a production site running against M6 and planning to upgrade to
 M7, please start testing as soon as possible so we can get fixes into M7
 sooner rather than later.

 Thanks,

 David


 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Surf the harmonics

 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: Lift 1.1 Milestone 7

2009-10-26 Thread Viktor Klang
On Tue, Oct 27, 2009 at 12:34 AM, David Pollak 
feeder.of.the.be...@gmail.com wrote:



 On Mon, Oct 26, 2009 at 4:24 PM, Viktor Klang viktor.kl...@gmail.comwrote:

 Folks,

 may I suggest cutting a Lift 1.1 Milestone 7 branch and deploy from that?
 (It'd eliminate the potential problems of synchronizing on a master/HEAD
 freeze)


 And it makes it more complex to figure out what to merge off master, please
 it means that testing against SNAPSHOT isn't testing against what will be in
 M7.


Yeah, you're right, unless you're doing all features+fixes in topic branches
it'll be less than stellar to merge from master/HEAD






 On Tue, Oct 27, 2009 at 12:18 AM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:

 Folks,

 We are scheduled to release Lift 1.1 Milestone 7 on Wednesday November
 4th.

 We would like to release M7 against Scala 2.7.7 final if EPFL's schedule
 can accommodate this.

 We are going into code-slush on Thursday October 29th (this means we're
 not going to make material changes to the codebase unless it's to fix a
 material bug).

 Please post any blocking defects to this list (with links to the
 ticket).  We'll endeavor to close any of these defects this week.

 If you're a production site running against M6 and planning to upgrade to
 M7, please start testing as soon as possible so we can get fixes into M7
 sooner rather than later.

 Thanks,

 David


 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Surf the harmonics





 --
 Viktor Klang
 | A complex system that works is invariably
 | found to have evolved from a simple system
 | that worked. - John Gall

 Blog: klangism.blogspot.com
 Twttr: viktorklang
 Code: github.com/viktorklang






 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Surf the harmonics

 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: A Critique On Lift

2009-10-24 Thread Viktor Klang
On Sat, Oct 24, 2009 at 8:18 PM, bob rbpas...@gmail.com wrote:


 why, it reformats your hard drive


oh snap



 On Oct 23, 6:17 pm, Viktor Klang viktor.kl...@gmail.com wrote:
  But if you name your method: ashiuahsdyasdasd what does it do?
 
 
 
 
 
  On Fri, Oct 23, 2009 at 9:47 PM, bob rbpas...@gmail.com wrote:
 
   I'll repeat: there are no operators in scala
 
   s/operators/methods-with-operator-like-names/
 
   anywhere, here's a typical case:
 
   import some.library.package.foo._
 
   val a = bar 42
   val b = a ~!~ 3.14159
 
   you can't easily tell that bar is being imported via foo._ .
   what is bar's return type?
   what does ~!~ do?
 
   i'm not saying its not possible to track all this down, but you can't
   just print out a listing of a class and take it on the subway. you
   have to have access to the scaladocs and possibly even the sources.
 
   --b
 
  --
  Viktor Klang
  | A complex system that works is invariably
  | found to have evolved from a simple system
  | that worked. - John Gall
 
  Blog: klangism.blogspot.com
  Twttr: viktorklang
  Code: github.com/viktorklang
 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: A Critique On Lift

2009-10-23 Thread Viktor Klang
My personal interpretation is sh!t I don't know here or don't care what it
is

On Fri, Oct 23, 2009 at 9:08 AM, Joni Freeman freeman.j...@gmail.comwrote:


 I love it too. While it is used in many different places it always
 means stuff that I do not care to name.

 BTW. high priest of the lambda calculus loves it too :) It has its
 roots in Haskell...


 http://channel9.msdn.com/shows/Going+Deep/C9-Lectures-Dr-Erik-Meijer-Functional-Programming-Fundamentals-Chapter-4-of-13/

 Cheers Joni

 On 23 loka, 09:48, Jonas Bonér jbo...@gmail.com wrote:
  I love the _ operator.
 
  2009/10/22 Timothy Perrett timo...@getintheloop.eu:
 
 
 
 
 
   I think this is a bit of a running joke in the scala comunity right
   now - your right, underscore really does have a number of meanings; I
   think this will be changed in some future Scala release.
 
   Your also forgetting:
 
   import some.package._
 
   Cheers, Tim
 
   On 22 Oct 2009, at 12:57, tiro wrote:
 
   underscore. At least four different uses:
   - it for defining anonymous functions like above
   - default value
   - matching placeholder whose value is ignored
   - use for constructing setter method names boolean functions (empty_?)
 
  --
  Jonas Bonér
 
  twitter: @jboner
  blog:http://jonasboner.com
  work:  http://scalablesolutions.se
  code:  http://github.com/jboner
  code:  http://akkasource.org
  also:http://letitcrash.com
 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: A Critique On Lift

2009-10-23 Thread Viktor Klang
But if you name your method: ashiuahsdyasdasd what does it do?

On Fri, Oct 23, 2009 at 9:47 PM, bob rbpas...@gmail.com wrote:


 I'll repeat: there are no operators in scala

 s/operators/methods-with-operator-like-names/

 anywhere, here's a typical case:

 import some.library.package.foo._

 val a = bar 42
 val b = a ~!~ 3.14159

 you can't easily tell that bar is being imported via foo._ .
 what is bar's return type?
 what does ~!~ do?

 i'm not saying its not possible to track all this down, but you can't
 just print out a listing of a class and take it on the subway. you
 have to have access to the scaladocs and possibly even the sources.

 --b



 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: A Critique On Lift

2009-10-23 Thread Viktor Klang
On Sat, Oct 24, 2009 at 12:23 AM, Jim Barrows jim.barr...@gmail.com wrote:



 On Fri, Oct 23, 2009 at 3:17 PM, Viktor Klang viktor.kl...@gmail.comwrote:

 But if you name your method: ashiuahsdyasdasd what does it do?


 Oh Bloddy Ell... that caused Cthulu to appear on my keyboard when I read
 it


Chtuluh ftagn! ;D





 On Fri, Oct 23, 2009 at 9:47 PM, bob rbpas...@gmail.com wrote:


 I'll repeat: there are no operators in scala

 s/operators/methods-with-operator-like-names/

 anywhere, here's a typical case:

 import some.library.package.foo._

 val a = bar 42
 val b = a ~!~ 3.14159

 you can't easily tell that bar is being imported via foo._ .
 what is bar's return type?
 what does ~!~ do?

 i'm not saying its not possible to track all this down, but you can't
 just print out a listing of a class and take it on the subway. you
 have to have access to the scaladocs and possibly even the sources.

 --b







 --
 Viktor Klang
 | A complex system that works is invariably
 | found to have evolved from a simple system
 | that worked. - John Gall

 Blog: klangism.blogspot.com
 Twttr: viktorklang
 Code: github.com/viktorklang





 --
 James A Barrows



 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: A Critique On Lift

2009-10-22 Thread Viktor Klang
Programming is not a simple task, that's why we haven't been replaced by
machines.

Scala is a _very_ powerful language, and it _is_ a challenge to harness that
power in addition to other languagues you have harnessed.

However, I do not feel that Scala has much non-explainable complexity, as is
the case of javas many-a boilerplate.

From what I have seen, much of the barrier of going to Scala is that many
people assume that going Java - Scala-y Java | Java-y Scala - Ideomatic
Scala is the route to go.

But the problem there is that sample Scala code is never Java-y Scala, so
beginners get confused from not having learned about first-class functions
and their syntax.
(from my 2 years of Scala, what I've seen the pitfalls being)

On Thu, Oct 22, 2009 at 7:13 AM, jlist9 jli...@gmail.com wrote:


 override def validations = validPriority _ :: super.validations

 This is a more of a comment about Scala than one about Lift - this does
 look cryptic to me. And this is just one of the simpler syntax that
 confuses
 people, who are new to the language. And I'm one of them.

 I understand that you don't have to learn all the tricks/syntax to start
 coding in Scala but you do have to understand it when you read
 source code of libraries written by someone with much more advanced
 language skills.

 In David's book he says After more than two years of coding Scala, ...
 My brain has finally stopped hurting. This sounds like a very high
 barrier to entry.

 I'm just wondering why Scala has to be so complicated. I'm sure a lot
 of things in Scala have their reasons but at the mean time I also
 suspect that many of the odd things are there to reduce
 typing, which is advertised as one of the advantages of this language -
 conciseness. (I could be very wrong due to my lack of understanding.)
 If the latter is true, I feel that I'd rather type a little more to make
 the
 code easier to read.

 Just feeling a little frustrated learning Scala. I think it's much
 easier learning
 Java. Not much surprise. Not sure if anyone shares my experience
 (and opinion, if there is one.)

 On Wed, Oct 21, 2009 at 3:56 PM, Randinn rand...@gmail.com wrote:
 
  http://localhost3000.de/2009/10/a-quick-glance-at-lift/
 
  The site above is a blog post from a Rails developer, he had some good
  and bad things to say about Lift and since I do not know enough to
  debate with him I thought I'd post it here.

 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: **Breaking Changes** **README** **Important**

2009-10-22 Thread Viktor Klang
DPP (and I) recommend just doing schedule and then re-schedule after message
recieved.

schedule(actor,MyMsg(),3 seconds)

in the actor

{
   case MyMsg() = {
doMyStuff
schedule(this,MyMsg(),3 seconds)
}
}

Makes sense?

On Thu, Oct 22, 2009 at 12:37 PM, george geo...@mattandgeorge.com wrote:


  - Secondly, I also get compilation error for calling
  scheduleAtFixedRate method on ActorPing. Says no such method. Has this
  method been deprecated and if so, what is the method I should be
  calling instead?

 I have this problem also.

 



-- 
Viktor Klang
| A complex system that works is invariably
| found to have evolved from a simple system
| that worked. - John Gall

Blog: klangism.blogspot.com
Twttr: viktorklang
Code: github.com/viktorklang

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[Lift] Re: Why the liftweb doesn't use mysql as the default database ?

2009-10-19 Thread Viktor Klang
Hi Neil,

I'd also like to add that MySQL is GPL.

On Mon, Oct 19, 2009 at 10:10 AM, Neil.Lv anim...@gmail.com wrote:


 Hi all,

   Why the liftweb doesn't use MySQL as the default database ?

   Thanks very much !

 Cheers,
  Neil

 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang
Wave: viktor.kl...@googlewave.com
Code: github.com/viktorklang

AKKA Committer - akkasource.org
Lift Committer - liftweb.com
Atmosphere Committer - atmosphere.dev.java.net
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: How much Scala knowledge is needed to start coding a simple blog with Lift?

2009-10-16 Thread Viktor Klang
On Thu, Oct 15, 2009 at 4:41 PM, David Pollak feeder.of.the.be...@gmail.com
 wrote:



 On Thu, Oct 15, 2009 at 4:18 AM, Viktor Klang viktor.kl...@gmail.comwrote:

 I started Scala 2 years ago by reading the Lift code.
 so DPPs basically responsible for my Scala code... ;)


 So what you're saying is that you're all my fault... gak. ;-)



Thanks for the warming words David ;)




 On Thu, Oct 15, 2009 at 10:58 AM, opyate opy...@gmail.com wrote:


 Hello,

 I bought the Scala book in PDF format (Odersky/Spoon/Venners) and
 pretty much jumped around it (benefit of PDF is the hyperlinks) for
 about a week. I am probably proficient with everything in chapters
 1-18 which is still pretty much beginner/novice level, but I need the
 web/book before I tackle most other concepts.

 But I just wanted to get my hands dirty with a couple of apps and
 dived straight in. You learn by doing. You learn by reading someone
 else's code, which is what I've been doing a lot with the Lift sources
 (I have a local Git clone, and set it up in Eclipse).

 So, in a nutshell: learn the Scala basics, and get your hands dirty.
 Open a console and faff about, then start writing apps! :-)

 What I've done so far can be found here:
 http://github.com/opyate/Ken
 http://github.com/opyate/yauser

 Happy coding!
 Juan

 On Oct 15, 6:07 am, ngocdaothanh ngocdaoth...@gmail.com wrote:
  Hi,
 
  I have experience with Rails and Java. I'm new to Scala and Lift. I
  want to ask how much Scala knowledge is needed to start coding a
  simple blog with Lift?
 
  Rails is easy to learn because it require little Ruby knowledge to get
  started. Having read the Lift book, I feel one must have some advanced
  Scala knowledge to get started. Could anyone provide some kind of
  guideline or curriculum of Scala and Lift to get started with Lift?
 
  I would like to write a simple blog to learn Lift. But don't know how
  much Scala knowledge I should have to jump in Lift.
 
  Thanks.





 --
 Viktor Klang

 Blog: klangism.blogspot.com
 Twttr: viktorklang
 Wave: viktor.kl...@googlewave.com
 Code: github.com/viktorklang

 AKKA Committer - akkasource.org
 Lift Committer - liftweb.com
 Atmosphere Committer - atmosphere.dev.java.net
 SoftPub founder: http://groups.google.com/group/softpub






 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Surf the harmonics


 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang
Wave: viktor.kl...@googlewave.com
Code: github.com/viktorklang

AKKA Committer - akkasource.org
Lift Committer - liftweb.com
Atmosphere Committer - atmosphere.dev.java.net
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: How much Scala knowledge is needed to start coding a simple blog with Lift?

2009-10-15 Thread Viktor Klang
I started Scala 2 years ago by reading the Lift code.
so DPPs basically responsible for my Scala code... ;)

On Thu, Oct 15, 2009 at 10:58 AM, opyate opy...@gmail.com wrote:


 Hello,

 I bought the Scala book in PDF format (Odersky/Spoon/Venners) and
 pretty much jumped around it (benefit of PDF is the hyperlinks) for
 about a week. I am probably proficient with everything in chapters
 1-18 which is still pretty much beginner/novice level, but I need the
 web/book before I tackle most other concepts.

 But I just wanted to get my hands dirty with a couple of apps and
 dived straight in. You learn by doing. You learn by reading someone
 else's code, which is what I've been doing a lot with the Lift sources
 (I have a local Git clone, and set it up in Eclipse).

 So, in a nutshell: learn the Scala basics, and get your hands dirty.
 Open a console and faff about, then start writing apps! :-)

 What I've done so far can be found here:
 http://github.com/opyate/Ken
 http://github.com/opyate/yauser

 Happy coding!
 Juan

 On Oct 15, 6:07 am, ngocdaothanh ngocdaoth...@gmail.com wrote:
  Hi,
 
  I have experience with Rails and Java. I'm new to Scala and Lift. I
  want to ask how much Scala knowledge is needed to start coding a
  simple blog with Lift?
 
  Rails is easy to learn because it require little Ruby knowledge to get
  started. Having read the Lift book, I feel one must have some advanced
  Scala knowledge to get started. Could anyone provide some kind of
  guideline or curriculum of Scala and Lift to get started with Lift?
 
  I would like to write a simple blog to learn Lift. But don't know how
  much Scala knowledge I should have to jump in Lift.
 
  Thanks.

 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang
Wave: viktor.kl...@googlewave.com
Code: github.com/viktorklang

AKKA Committer - akkasource.org
Lift Committer - liftweb.com
Atmosphere Committer - atmosphere.dev.java.net
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: DB logging logs statements twice?

2009-10-15 Thread Viktor Klang
I vote for DB.exec

On Thu, Oct 15, 2009 at 4:09 PM, Derek Chen-Becker dchenbec...@gmail.comwrote:

 OK, I found what's happening. Logging is getting called in the private
 DB.runPreparedStatement, and also in the DB.exec method. Mapper uses exec
 within the runPreparedStatement call. It seems like exec is the more
 appropriate place to be running the logging, since you could have multiple
 execs on a prepared statement but you generally wouldn't prepare a statement
 without executing it. Thoughts on removing the logging from
 runPreparedStatement?

 Derek


 On Wed, Oct 14, 2009 at 11:42 PM, Derek Chen-Becker dchenbec...@gmail.com
  wrote:

 I don't think so. In this case I'm seeing a ResultSet in both log entries,
 which shouldn't show up in the part where it's being prepared.

 Derek


 On Tue, Oct 13, 2009 at 6:09 PM, Jonathan Ferguson j...@spiralarm.comwrote:

 Is this related to a previous query dated 15 Sept, the title was
 [Lift] Mapper: Why is every SQL query sent twice? (second time with NULL
 parameters)
 The response from @dpp was

 The SQL is not being sent twice.  There are two different points (when
 the Statement is created and after the Statement is executed) that the same
 query is logged.


 Cheers
 Jono


 2009/10/14 Derek Chen-Becker dchenbec...@gmail.com

  OK, I'm seeing the same thing here. I'll open an issue and work on it.

 Derek


 On Tue, Oct 13, 2009 at 10:07 AM, harryh har...@gmail.com wrote:


 I'm also seeing this double logging behavior (using PostgreSQL.  I was
 under the impression that it was happening because the SQL statement
 is first prepared, and then executed (each of which cause a log
 entry).  It's not critical or anything, but it would be nice if this
 could be fixed at some point.

 -harryh

 On Oct 13, 10:28 am, Derek Chen-Becker dchenbec...@gmail.com wrote:
  I'm not sure how that could be getting logged twice, especially since
 it's
  the exact same ResultSet being returned. When I tested this on my
 local app
  (against both PG and MySQL) I didn't get this behavior, but I'll try
 pulling
  from master and testing again just in case something changed.
 
  Derek
 
  On Tue, Oct 13, 2009 at 6:56 AM, Jeppe Nejsum Madsen 
 je...@ingolfs.dkwrote:
 
 
 
   Hi,
 
   Just wanted to update to the new db logging by adding the following
 to
   boot:
 
DB.addLogFunc {
case (query:DBLog, time) = {
  LogBoot.loggerByName(query).info( All queries took  +
 time +
   ms: )
  query.statementEntries.foreach({ case DBLogEntry(stmt,
 duration) =
   LogBoot.loggerByName(query).info(+stmt +  took  +
 duration +
   ms)})
  LogBoot.loggerByName(query).info( End queries)
}
  }
 
   But it seems all executed statements are logged twice. I have this
   snippet:
 
   def currentUser(xhtml: Group): NodeSeq =
   Text(User.currentUser.dmap(S.?(Anonym))(user = user.firstName +
   +
   user.lastName))
 
   This logs:
 
   14:46:09.068 [tp-1029120287-4] INFO  query
-
All queries took 5ms:
   14:46:09.068 [tp-1029120287-4] INFO  query
-
   Exec query SELECT users.id, users.firstname, users.lastname,
   users.email, users.locale, users.timezone, users.password_pw,
   users.password_slt, users.account_id, users.superuser,
 users.uniqueid,
   users.validated FROM users WHERE id = 2 (scale -5) :
   org.postgresql.jdbc4.jdbc4result...@77f31432 took 4ms
   14:46:09.069 [tp-1029120287-4] INFO  query
-
End queries
   14:46:09.069 [tp-1029120287-4] INFO  query
-
All queries took 8ms:
   14:46:09.069 [tp-1029120287-4] INFO  query
-
   Exec query SELECT users.id, users.firstname, users.lastname,
   users.email, users.locale, users.timezone, users.password_pw,
   users.password_slt, users.account_id, users.superuser,
 users.uniqueid,
   users.validated FROM users WHERE id = 2 (scale -5) :
   org.postgresql.jdbc4.jdbc4result...@77f31432 took 4ms
   14:46:09.069 [tp-1029120287-4] INFO  query
   -  End queries
 
   Note the same resultset. The postgres logs also shows that only a
 single
   statement is executed
 
   So, what did I miss?
 
   /Jeppe










 



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[Lift] Re: Lift UVP's

2009-10-12 Thread Viktor Klang
I think that focusing on the selling points is a good strategy, people
cannot and will not learn the code in the preso, so demonstrating _why_ Lift
is a good choice if you value the things that Lift brings to the table, and
then start lining up things on the table.



On Mon, Oct 12, 2009 at 12:09 AM, Rick R rick.richard...@gmail.com wrote:

 From an outsider: Comet/Actors was a big draw for me to Lift. As I learned
 more, the view-first philosophy began becoming very helpful.

 In addition, it offers an insanely powerful session state API.
 It is also secure by default, offering many features that would be a pain
 to retrofit into a system.
 The component oriented views/templates and no-single-controller philosophy
 is also a major win. IMO it, along with Nitrogen may be the only major
 framework to actually offer true modularization.

 It was these and other benefits that lured me *despite* its integration
 with the existing JEE infrastructure. Coming from a functional and c++
 background, Lift's association with Java was a detriment in my eyes. I am
 know that there are others like me, and, depending on the audience, it may
 need to be addressed.

 Just my two cents. Good luck with your talk!


 On Sun, Oct 11, 2009 at 5:37 PM, Timothy Perrett 
 timo...@getintheloop.euwrote:


 Guys,

 In about a month im speaking at a fairly sizeable event in Belgium and
 wanted to ask a few questions about what users see at Lift's unique
 value proposition. I did a talk about lift at a bar-camp recently and
 whilst they were fairly well received, I think i still assumed too
 much information. To that end, I thought by focusing on some of lifts
 super cool features in a broad way I would then aim to give people a
 better overview / warm fuzzy feeling about Lift in the allotted hour.

 So what are Lift's UVP's? My list looks a little like:

 - OOTB Comet (probably what draws most people to lift)
 - View first / code free templating
 - Utilisation of existing JEE infrastructure (WARs, JPA etc)
 - Non-perscriptive but highly configurable framework

 Then we also have some stuff that we inherit from scala:

 - traits
 - concise but type safe code
 - etc etc etc

 What do people think? I have an hour to make people feel good about
 Lift and hopefully give them enough of a taste to go away and try it
 later - am i missing anything blindingly obvious? This isnt a hard and
 fast outline of my preso, just trying to kick around some thoughts and
 ideas :-)

 Cheers, Tim



 



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[Lift] Re: Lift UVP's

2009-10-12 Thread Viktor Klang
On Mon, Oct 12, 2009 at 11:06 AM, Timothy Perrett
timo...@getintheloop.euwrote:


 Completly :-)

 Thats why i just want to present a strong case of features and get
 away from code on slides. I might do a few slides showing some code,
 perhaps for things like template binding or comet. But generally id
 like to think about features.

 So, what might you suggest mate?


:-)
Perhaps something like

The Lift philosophy
View-first - Pros and Cons
Comet OOTB (the 30 line chat example is always a crowd-pleaser)
The security model (random uids, SiteMap, Http Auth etc)
Performance and scaling

That's what's on top of my head...



 Cheers, Tim

 On 12 Oct 2009, at 08:27, Viktor Klang wrote:

  I think that focusing on the selling points is a good strategy,
  people cannot and will not learn the code in the preso, so
  demonstrating _why_ Lift is a good choice if you value the things
  that Lift brings to the table, and then start lining up things on
  the table.


 



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[Lift] Re: How to share request scope data among snippets in Lift

2009-10-06 Thread Viktor Klang
On Tue, Oct 6, 2009 at 12:01 AM, Kevin Wright kev.lee.wri...@googlemail.com
 wrote:


 On Mon, Oct 5, 2009 at 10:54 PM, Jack Widman jack.wid...@gmail.com
 wrote:
  I'm not sure English is Turing Complete. Also not sure how prominent it
 will
  be in 50 years ... :)

 Nor I, but I'm certain that Turing was (Queen's) English complete... :)


Didn't the Queen's England like have him castrated for being homosexual as
well?

http://en.wikipedia.org/wiki/Alan_Turing#Conviction_for_gross_indecency



  On Mon, Oct 5, 2009 at 5:51 PM, David Pollak 
 feeder.of.the.be...@gmail.com
  wrote:
 
 
  On Mon, Oct 5, 2009 at 9:35 AM, Timothy Perrett timo...@getintheloop.eu
 
  wrote:
 
  Call me old fashioned, but good ol' English seems to be quite
  prevalent these days ;-)
 
  Is this the Queen's English? ;-)
 
 
  On 5 Oct 2009, at 17:02, Jack Widman wrote:
 
   Why don't we make Esperanto the official Lift language?
 
 
 
 
 
 
  --
  Lift, the simply functional web framework http://liftweb.net
  Beginning Scala http://www.apress.com/book/view/1430219890
  Follow me: http://twitter.com/dpp
  Surf the harmonics
 
 
 
 
 
  --
  Jack
 
  
 

 



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[Lift] Re: execute code when browser is closed

2009-10-05 Thread Viktor Klang
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com wrote:


 I would like to call a function when the browser is closed. How do I
 do this?


You cannot reliably do this.


 



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[Lift] Re: How to share request scope data among snippets in Lift

2009-10-05 Thread Viktor Klang
On Mon, Oct 5, 2009 at 6:02 PM, Jack Widman jack.wid...@gmail.com wrote:

 Why don't we make Esperanto the official Lift language?


I'd say make Scala the official language ;)



 On Mon, Oct 5, 2009 at 11:52 AM, marius d. marius.dan...@gmail.comwrote:




 On Oct 5, 6:15 pm, David Pollak feeder.of.the.be...@gmail.com wrote:
  On Sun, Oct 4, 2009 at 2:41 AM, ishiijp yoshinori.is...@gmail.com
 wrote:
 
   Thank you for your example, David.
   It will work in my purpose.
 
  Cool.
 
 
 
   It seems that my poor English and less information let some people
   confused.
 
  I appreciate that you have put in the work to translate your thoughts to
  English.  I apologize that I only speak English, but would love to speak
  Japanese, German, Russian, and a few other languages.

 oh you gotta learn Romanian :)

 
   I need just a request scope data.
   It means I want to share information between snippets across a
   request.
   (Is the expression request scope not good for in this case...?)
 
  request scope is exactly the right phrase.
 
 
 
 
 
   Thank all responsed my post,
   and your suggestions are informative.
   I think very nice community is here.
 
   On 9月26日, 午後10:33, David Pollak feeder.of.the.be...@gmail.com
 wrote:
To share information between snippets during a request, use a
 RequestVar:
object MyInfo extends RequestVar(calculate_value)
 
so
 
object MyInfo extends RequestVar[Box[Invoice]](Empty)
 
in one snippet, you may calculate the Invoice and put it in the
 MyInfo:
 
MyInfo.set(Full(invoice))
 
In another snippet, you can extract:
 
for {
  invoice - MyInfo.is
  } yield ...
 
Note that the calculate_value is a call-by-name parameter, so it
 will
   be
invoked each time the RequestVar is uninitialized.  You can place
 lazy
calculation logic in here.
 
On Sat, Sep 26, 2009 at 12:14 AM, ishiijp 
 yoshinori.is...@gmail.com
   wrote:
 
 Hi.
 
 If my lift application have some data that cost to create, and I
 want
 to share it among snippets, how to do in Lift?
 
 if such data are shared inside one snippet, I may use lazy val.
 But I have no nice idea to share it among different snippts.
 
 Thanks much.
 
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
 
  --
  Lift, the simply functional web frameworkhttp://liftweb.net
  Beginning Scalahttp://www.apress.com/book/view/1430219890
  Follow me:http://twitter.com/dpp
  Surf the harmonics




 --
 Jack


 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Lift with JavaRebel, Jetty: Can I add views and/or modify Boot.scala without restarting Jetty?

2009-10-04 Thread Viktor Klang
Boot is just executed at webapp init, hence the observed behavior.
Changing this is a tricky thing

On Oct 4, 2009 4:35 AM, Alex Black a...@alexblack.ca wrote:


I'm just getting started with Lift and Scala, and I'm excited about
using JavaRebel to avoid waiting to restart Jetty every time I make a
change.

It seems to be working well: I can see changes made to snippets for
example right away, I'm running mvn scala:cc: and I see it pick up
the changes.

However, if I add a new view say test2.html, then modify the sitemap
Boot.scala, I can't access test2 until I restart Jetty, even though I
saw that scala.cc picked up  the change and recompiled Boot.scala.

Should this be possible? Thanks!

- Alex


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[Lift] Re: How do you deploy yours?

2009-10-04 Thread Viktor Klang
Thanks for the linky, mate!
Was a good read :)

On Sun, Oct 4, 2009 at 11:45 PM, Timothy Perrett timo...@getintheloop.euwrote:


 Just some more fuel for this debate:

 http://technically.us/code/x/to-jettison-geronimo/

 Cheers, Tim

 On Oct 4, 8:46 pm, Timothy Perrett timo...@getintheloop.eu wrote:
  Guys,
 
  Of late i've been having several discussions with people about how
  they deploy there lift apps... So, how do you deploy yours?
 
  Specifically, how are people managing multiple apps in one install of
  jetty? Or, alternatively, how are you embedded jetty so you have an
  executable JAR?
 
  Im using Winstone for apps that dont use Comet because the package is
  so slick (thanks DavidB), but now, I really really want to be able to
  embed jetty so I have an executable JAR in the same vein as Winstone.
 
  As time moves on, I feel like this is more and more important and we
  dont current have a defined path for n00bs.
 
  Cheers, Tim
 



-- 
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[Lift] Re: Removing Scala Actors from Lift

2009-09-30 Thread Viktor Klang
?
  
   Thanks,
  
   David
  
   --
   Lift, the simply functional web frameworkhttp://liftweb.net
   Beginning Scalahttp://www.apress.com/book/view/1430219890
   Follow me:http://twitter.com/dpp
   Surf the harmonics
 
 
 
 
 
  --
  Lift, the simply functional web framework http://liftweb.net
  Beginning Scala http://www.apress.com/book/view/1430219890
  Follow me: http://twitter.com/dpp
  Surf the harmonics
 
 
 
 
  
 



 --
 Jonas Bonér

 twitter: @jboner
 blog:http://jonasboner.com
 work:   http://crisp.se
 work:   http://scalablesolutions.se
 code:   http://github.com/jboner
 code:   http://akkasource.org








 --
 Heiko Seeberger

 My job: weiglewilczek.com
 My blog: heikoseeberger.name
 Follow me: twitter.com/hseeberger
 OSGi on Scala: scalamodules.org
 Lift, the simply functional web framework: liftweb.net


 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Java 5 support?

2009-09-29 Thread Viktor Klang
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Surf the harmonics




 



-- 
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[Lift] Re: Java 5 support?

2009-09-29 Thread Viktor Klang
On Tue, Sep 29, 2009 at 3:47 PM, Derek Chen-Becker dchenbec...@gmail.comwrote:

 Can you elaborate on what you mean? I was actually going to look at how
 log4jdbc does it and see if I could replicate it.


I haven't really tried this, but if you do:

if you implement methods with the correct signatures in the LoggedStatement
and LoggedPreparedStatement, then wrap the invocations to the wrapped
instances in a try-catch, and if there's an NoSuchMethodException, return
some default value?




 Derek

 On Tue, Sep 29, 2009 at 5:22 AM, Viktor Klang viktor.kl...@gmail.comwrote:

 Is it possible to have a  bridge trait for the Statement interface?


 On Tue, Sep 29, 2009 at 12:16 AM, Derek Chen-Becker 
 dchenbec...@gmail.com wrote:

 No. I hadn't foreseen this issue, but I understand the importance of have
 Java 5 support. I'm fine with writing and maintaining multiple versions of
 the impls for the various versions, but I wonder if there's any clean way to
 manage this with Maven.

 Derek


 On Mon, Sep 28, 2009 at 4:00 PM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:

 Crud.  This just isn't going to be easy, is it?


 On Mon, Sep 28, 2009 at 2:04 PM, Derek Chen-Becker 
 dchenbec...@gmail.com wrote:

 Another issue, which may be more problematic, is that in my case I'm
 compiling against the java.sql.Statement interface. If I remove the
 troublesome methods so that it compiles for 1.5, it no longer compiles for
 1.6 because of the missing methods:

 [WARNING]
 /home/software/liftweb/lift-mapper/src/main/scala/net/liftweb/mapper/LoggingStatementWrappers.scala:70:
 error: class LoggedStatement needs to be abstract, since method isPoolable
 in trait Statement of type ()Boolean is not defined
 [WARNING] class LoggedStatement(underlying : Statement) extends
 Statement with DBLog {
 [WARNING]   ^
 [WARNING]
 /home/software/liftweb/lift-mapper/src/main/scala/net/liftweb/mapper/LoggingStatementWrappers.scala:267:
 error: class LoggedPreparedStatement needs to be abstract, since method
 setNClob in trait PreparedStatement of type (Int,java.io.Reader)Unit is 
 not
 defined
 [WARNING] class LoggedPreparedStatement (stmt : String, underlying :
 PreparedStatement) extends LoggedStatement(underlying) with
 PreparedStatement {
 [WARNING]   ^


 Derek


 On Mon, Sep 28, 2009 at 2:29 PM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:



 On Mon, Sep 28, 2009 at 1:19 PM, Derek Chen-Becker 
 dchenbec...@gmail.com wrote:

 The issue (and I may be overthinking this) is that we need 1.5 class
 libraries to compile against if we want to be able to verify that the 
 code
 compiles under 1.5. If I, say, delete my JDK 5 install and decide to
 reinstall it down the road, it's not going to be available without a
 purchased license.


 I can stash away a bunch of different copies of the JDK and give them
 to you when you need them.

 A 32 bit Linux JDK 1.5 should be enough to at least do smoke test
 builds with.



 Derek



 On Mon, Sep 28, 2009 at 1:33 PM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:



 On Mon, Sep 28, 2009 at 11:51 AM, Derek Chen-Becker 
 dchenbec...@gmail.com wrote:

 My main concern is that after October 30, Java 5 costs money (I'm
 guessing not a trivial amount, either). I can get the JDK right now, 
 but if
 some bug in the Java libraries pops up that would prevent things from
 working, I don't know how we'll work around that.


 I don't see the condition under which that could happen.  When we
 compile against Java 1.5, we are simply defining the contract between 
 our
 classes and the library classes.  None of the library seeps into our 
 code
 (this is not true of Scala traits).  So, as long as the running 
 library has
 the classes/methods that we are calling, we're fine.  Compiling 
 against 1.5
 simply means that we have fewer calls that we can make.  If there is an
 issue in 1.5 that a user is experiencing, that is the user's issue, not
 ours.  If the code compiles (and runs tests) against 1.5 and does not
 generate the particular issue that the user is seeing under 1.6, then 
 that
 use has to contact Sun, not us.



 Derek

 On Mon, Sep 28, 2009 at 12:29 PM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:



 On Mon, Sep 28, 2009 at 11:14 AM, Derek Chen-Becker 
 dchenbec...@gmail.com wrote:

 I was just about to work on issue #67 (build breaks on Java 5),
 but when I went to get a Java 5 JDK to compile/test with, Sun says 
 that it's
 EOL as of October 30, 2009. I don't have a problem fixing things to 
 work
 with Java 5, but I don't want to do work that's going to be tossed 
 out in a
 month.


 Lift will be JDK 1.5 compatible for at least 1 year (and probably
 longer).  LinkedIn and SAP are both 1.5 shops.  There are tons of 
 other Bay
 Area companies (Wells Fargo, Kaiser, etc.) that are also 1.5 shops.  
 For the
 next 2-3 years, OS X 10.5 will be common and 10.5 + old MacBooks == 
 1.5.

 It will not be lost work.


 Derek





 --
 Lift, the simply functional web

[Lift] Re: Java 5 support?

2009-09-29 Thread Viktor Klang
On Tue, Sep 29, 2009 at 4:44 PM, Naftoli Gugenheim naftoli...@gmail.comwrote:


 Another option: Java has a way to dynamically implement an interface. I
 forgot what the classes are called. You supply a delegate and you can
 pattern match on which method is being invoked. In Java 5 the nonexistent
 method will simply never be invoked, but it won't break code.


Dynamic proxy?



 -
 Viktor Klangviktor.kl...@gmail.com wrote:

 On Tue, Sep 29, 2009 at 3:47 PM, Derek Chen-Becker dchenbec...@gmail.com
 wrote:

  Can you elaborate on what you mean? I was actually going to look at how
  log4jdbc does it and see if I could replicate it.
 

 I haven't really tried this, but if you do:

 if you implement methods with the correct signatures in the LoggedStatement
 and LoggedPreparedStatement, then wrap the invocations to the wrapped
 instances in a try-catch, and if there's an NoSuchMethodException, return
 some default value?



 
  Derek
 
  On Tue, Sep 29, 2009 at 5:22 AM, Viktor Klang viktor.kl...@gmail.com
 wrote:
 
  Is it possible to have a  bridge trait for the Statement interface?
 
 
  On Tue, Sep 29, 2009 at 12:16 AM, Derek Chen-Becker 
  dchenbec...@gmail.com wrote:
 
  No. I hadn't foreseen this issue, but I understand the importance of
 have
  Java 5 support. I'm fine with writing and maintaining multiple versions
 of
  the impls for the various versions, but I wonder if there's any clean
 way to
  manage this with Maven.
 
  Derek
 
 
  On Mon, Sep 28, 2009 at 4:00 PM, David Pollak 
  feeder.of.the.be...@gmail.com wrote:
 
  Crud.  This just isn't going to be easy, is it?
 
 
  On Mon, Sep 28, 2009 at 2:04 PM, Derek Chen-Becker 
  dchenbec...@gmail.com wrote:
 
  Another issue, which may be more problematic, is that in my case I'm
  compiling against the java.sql.Statement interface. If I remove the
  troublesome methods so that it compiles for 1.5, it no longer
 compiles for
  1.6 because of the missing methods:
 
  [WARNING]
 
 /home/software/liftweb/lift-mapper/src/main/scala/net/liftweb/mapper/LoggingStatementWrappers.scala:70:
  error: class LoggedStatement needs to be abstract, since method
 isPoolable
  in trait Statement of type ()Boolean is not defined
  [WARNING] class LoggedStatement(underlying : Statement) extends
  Statement with DBLog {
  [WARNING]   ^
  [WARNING]
 
 /home/software/liftweb/lift-mapper/src/main/scala/net/liftweb/mapper/LoggingStatementWrappers.scala:267:
  error: class LoggedPreparedStatement needs to be abstract, since
 method
  setNClob in trait PreparedStatement of type (Int,java.io.Reader)Unit
 is not
  defined
  [WARNING] class LoggedPreparedStatement (stmt : String, underlying :
  PreparedStatement) extends LoggedStatement(underlying) with
  PreparedStatement {
  [WARNING]   ^
 
 
  Derek
 
 
  On Mon, Sep 28, 2009 at 2:29 PM, David Pollak 
  feeder.of.the.be...@gmail.com wrote:
 
 
 
  On Mon, Sep 28, 2009 at 1:19 PM, Derek Chen-Becker 
  dchenbec...@gmail.com wrote:
 
  The issue (and I may be overthinking this) is that we need 1.5
 class
  libraries to compile against if we want to be able to verify that
 the code
  compiles under 1.5. If I, say, delete my JDK 5 install and decide
 to
  reinstall it down the road, it's not going to be available without
 a
  purchased license.
 
 
  I can stash away a bunch of different copies of the JDK and give
 them
  to you when you need them.
 
  A 32 bit Linux JDK 1.5 should be enough to at least do smoke test
  builds with.
 
 
 
  Derek
 
 
 
  On Mon, Sep 28, 2009 at 1:33 PM, David Pollak 
  feeder.of.the.be...@gmail.com wrote:
 
 
 
  On Mon, Sep 28, 2009 at 11:51 AM, Derek Chen-Becker 
  dchenbec...@gmail.com wrote:
 
  My main concern is that after October 30, Java 5 costs money (I'm
  guessing not a trivial amount, either). I can get the JDK right
 now, but if
  some bug in the Java libraries pops up that would prevent things
 from
  working, I don't know how we'll work around that.
 
 
  I don't see the condition under which that could happen.  When we
  compile against Java 1.5, we are simply defining the contract
 between our
  classes and the library classes.  None of the library seeps into
 our code
  (this is not true of Scala traits).  So, as long as the running
 library has
  the classes/methods that we are calling, we're fine.  Compiling
 against 1.5
  simply means that we have fewer calls that we can make.  If there
 is an
  issue in 1.5 that a user is experiencing, that is the user's
 issue, not
  ours.  If the code compiles (and runs tests) against 1.5 and does
 not
  generate the particular issue that the user is seeing under 1.6,
 then that
  use has to contact Sun, not us.
 
 
 
  Derek
 
  On Mon, Sep 28, 2009 at 12:29 PM, David Pollak 
  feeder.of.the.be...@gmail.com wrote:
 
 
 
  On Mon, Sep 28, 2009 at 11:14 AM, Derek Chen-Becker 
  dchenbec...@gmail.com wrote:
 
  I was just about to work on issue #67 (build breaks on Java 5),
  but when I went to get

[Lift] Re: You are not banned from this group!!

2009-09-24 Thread Viktor Klang
On Thu, Sep 24, 2009 at 3:29 PM, Oliver Lambert olambo...@gmail.com wrote:

 My son was born a week ago, with a heart defect that has just been operated
 on - I've been biting my nails for months and haven't felt like
 communicating or working. Things are starting to look good for him so maybe
 Im back.


I'll cross my fingers and hope all goes well mate!



 cheers
 Oliver


 On Thu, Sep 24, 2009 at 12:08 PM, Charles F. Munat c...@munat.com wrote:


 Funny, I was just wondering what happened to you maybe two days ago. Are
 you back, or just checking in?

 Chas.

 Oliver Lambert wrote:
 
 
  On Tue, Sep 22, 2009 at 7:21 AM, David Pollak
  feeder.of.the.be...@gmail.com mailto:feeder.of.the.be...@gmail.com
  wrote:
 
 
  I will gladly buy beer/coffee/food for anyone who gets such a
  notice.  I sincerely apologize for any problems this is causing.
 
 
  Can you send me such a notice, I'd like a beer!
  Oh, and I've been away for a while, its nice to see the lift mailing
  list is going so strong.
 
  Oliver
 
  




 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: [SOLVED] Image submit buttons

2009-09-24 Thread Viktor Klang
Cheesus mate,

the horrors of war...

On Thu, Sep 24, 2009 at 6:23 PM, Timothy Perrett timo...@getintheloop.euwrote:


 It appears that placing a hidden field at the end of the form with the
 right function binding solves the issue.
 Its far from ideal, but ironically appears to be what Microsoft do
 with .NET to work around IE issues.

 The joys of IE!

 Cheers, Tim

 On Sep 24, 9:41 am, Timothy Perrett timo...@getintheloop.eu wrote:
  Actually scrap that - any solution to make image submit buttons work
  in IE and lift would be good :-)
 
  Cheers, Tim
 
  On Sep 24, 9:19 am, Timothy Perrett timo...@getintheloop.eu wrote:
 
 
 
   Guys,
 
   IE8 brings with it a whole new lot of joy and:
 
   input type=image /
 
   Does not act as a submit button. According to the interweb, this will
   fix it:
 
   button type=submitimg src=whatever.jpg //button
 
   As I need to exectute the submit function in my lift snippet - how can
   i get around this with the current implementation? Seems like we need
   a SHtml.button(contentNodeSeq, callback _)
 
   Thoughts?
 
   Cheers, Tim
 



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Twttr: viktorklang

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[Lift] Re: Spring Security

2009-09-16 Thread Viktor Klang
On Wed, Sep 16, 2009 at 2:38 AM, Charles F. Munat c...@munat.com wrote:


 David Pollak wrote:
  The existing page/URL level security has nothing to do with Mapper.
   There's nothing that can be done with Mapper that can't be done with
  JPA (with the exception of Mapper's field-level access control which, to
  my knowledge, is not being used anywhere.)

 I meant that the login feature when you use the basic archetype is set
 up to work with Mapper, not that login is part of Mapper. It could be
 adapted to work with JPA easily, but there is no JPA archetype so far
 that includes that login functionality (that I'm aware of). You have to
 roll your own.

  I radically disagree.  Having a separate concern doing security is a
  disaster because there'll always be some place where one system believes
  one thing and the other system believes something else.

 A disaster? Always? Really? Even allowing for hyperbole, if these
 systems are so bad, why are so many people using them -- apparently with
 great success? Without some evidence to back this claim up, I'm dubious.


Chas, there's alot of really shitty software used by millions of people,
I could name these product to you, but I'm unwilling to bash multinational,
billion-dollar companies where they have no possibility to retort.
The morale of the story is that just because everyone else is doing it
doesn't mean that it's good or even above retarded.



 That said, it certainly would be nice to have these capabilities in
 Lift. But I don't have the time either. SS looks pretty drop in.

 There may also be situations where using a particular solution (such as
 SS) is a requirement and make-or-break on whether Lift can be used, so I
 don't see the ability to make Lift work with such software as a negative.

 I have a lot more to say on this, but have to run. Maybe later.

 Chas.

 



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Twttr: viktorklang

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[Lift] Re: Spring Security

2009-09-16 Thread Viktor Klang
On Wed, Sep 16, 2009 at 10:49 AM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Wed, Sep 16, 2009 at 2:38 AM, Charles F. Munat c...@munat.com wrote:


 David Pollak wrote:
  The existing page/URL level security has nothing to do with Mapper.
   There's nothing that can be done with Mapper that can't be done with
  JPA (with the exception of Mapper's field-level access control which, to
  my knowledge, is not being used anywhere.)

 I meant that the login feature when you use the basic archetype is set
 up to work with Mapper, not that login is part of Mapper. It could be
 adapted to work with JPA easily, but there is no JPA archetype so far
 that includes that login functionality (that I'm aware of). You have to
 roll your own.

  I radically disagree.  Having a separate concern doing security is a
  disaster because there'll always be some place where one system believes
  one thing and the other system believes something else.

 A disaster? Always? Really? Even allowing for hyperbole, if these
 systems are so bad, why are so many people using them -- apparently with
 great success? Without some evidence to back this claim up, I'm dubious.


 Chas, there's alot of really shitty software used by millions of people,
 I could name these product to you, but I'm unwilling to bash multinational,
 billion-dollar companies where they have no possibility to retort.
 The morale of the story is that just because everyone else is doing it
 doesn't mean that it's good or even above retarded.


Please note that I was not talking about SS in any sense, I'm just a firm
believer that in order to know if something is good or not you need to
establish what you value and how you measure that value and what different
solution you are weighing against eachother.

Never fall for peer pressure when doing software.





 That said, it certainly would be nice to have these capabilities in
 Lift. But I don't have the time either. SS looks pretty drop in.

 There may also be situations where using a particular solution (such as
 SS) is a requirement and make-or-break on whether Lift can be used, so I
 don't see the ability to make Lift work with such software as a negative.

 I have a lot more to say on this, but have to run. Maybe later.

 Chas.

 



 --
 Viktor Klang

 Blog: klangism.blogspot.com
 Twttr: viktorklang

 Lift Committer - liftweb.com
 AKKA Committer - akkasource.org
 Cassidy - github.com/viktorklang/Cassidy.git
 SoftPub founder: http://groups.google.com/group/softpub




-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: How to XHTML and embedded snippets

2009-09-16 Thread Viktor Klang
On Wed, Sep 16, 2009 at 12:37 PM, Ewan ehar...@gmail.com wrote:


 I'd like to pop the bound value from a snippet into some standard
 xhtml tags but it does not parse.  In the case below I want the url to
 be put into the img tag where property:imageUrl/ is bound to ta
 snippet.

 img src=property:imageUrl/  style=border:3px solid #CC
 width=75 height=100/


Have a snippet that simply adds the src attribute to the supplied markup

lift:img src=imageUrl
   img style=fooo width=75 height=100/
/lift:img



 I am unable to do this so as a work around I get the snippet to create
 the xhtml img tag but is there a way to achieve the above as I don't
 want to change scala src for every minor ui change.

 -- Ewan
 



-- 
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[Lift] Re: How to XHTML and embedded snippets

2009-09-16 Thread Viktor Klang
On Wed, Sep 16, 2009 at 12:49 PM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Wed, Sep 16, 2009 at 12:37 PM, Ewan ehar...@gmail.com wrote:


 I'd like to pop the bound value from a snippet into some standard
 xhtml tags but it does not parse.  In the case below I want the url to
 be put into the img tag where property:imageUrl/ is bound to ta
 snippet.

 img src=property:imageUrl/  style=border:3px solid #CC
 width=75 height=100/


 Have a snippet that simply adds the src attribute to the supplied markup

 lift:img src=imageUrl
img style=fooo width=75 height=100/
 /lift:img


Also, you can do like this:

http://www.mail-archive.com/liftweb@googlegroups.com/msg06278.html





 I am unable to do this so as a work around I get the snippet to create
 the xhtml img tag but is there a way to achieve the above as I don't
 want to change scala src for every minor ui change.

 -- Ewan
 



 --
 Viktor Klang

 Blog: klangism.blogspot.com
 Twttr: viktorklang

 Lift Committer - liftweb.com
 AKKA Committer - akkasource.org
 Cassidy - github.com/viktorklang/Cassidy.git
 SoftPub founder: http://groups.google.com/group/softpub




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Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: Breaking changes in CometActor code vs. continuing instabilities in Scala Actors

2009-09-16 Thread Viktor Klang
On Wed, Sep 16, 2009 at 3:42 PM, Naftoli Gugenheim naftoli...@gmail.comwrote:


 I haven't used comet, but would it be worthwhile to abstract it with
 implementations (potentially) for Scala, Lift, and Akka actors?


I've integrated Atmosphere http://atmosphere.dev.java.net/ into Akka, and
I know that Jeanfrançois Arcand (Atmosphere dude) has shown interest in
integrating it into Lift.



 -
 TylerWeirtyler.w...@gmail.com wrote:


 Given the on again/off again nature of the issue, I'm voting for
 adding your change.
 We can rely on your code working until the issue is sorted with the
 Scala team.

 So, +1 to dpp's code.

 On Sep 16, 9:14?am, David Pollak feeder.of.the.be...@gmail.com
 wrote:
  Guys,
  The Scala Actor issue has raised its head again.
 
  From November 2008 - June 2009, I did an epic battle with Scala actors
 and
  their memory retention issues.
 
  I finally wrote a Lift Actor library that made all the Scala
 Actor-related
  issues go away for the short-lived Actors that Lift uses as listeners for
  comet long-polling.
 
  It seems that the Actor issue is not gone. ?I'm not sure it will be gone
 in
  Scala 2.8.
 
  I can make a change in Lift to move to Lift Actors in CometActor code.
 ?It
  means that if you're using Scala Actors beyond !, !! and !? methods, you
  will have to change your code, otherwise it will just be a recompile.
 
  What do people think?
 
  Thanks,
 
  David
 
  --
  Lift, the simply functional web frameworkhttp://liftweb.net
  Beginning Scalahttp://www.apress.com/book/view/1430219890
  Follow me:http://twitter.com/dpp
  Git some:http://github.com/dpp


 



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Twttr: viktorklang

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[Lift] Re: Breaking changes in CometActor code vs. continuing instabilities in Scala Actors

2009-09-16 Thread Viktor Klang
On Wed, Sep 16, 2009 at 4:50 PM, Timothy Perrett timo...@getintheloop.euwrote:

 Kevin,

 To clarify, your talking about akka-actors?

 The preferred route I think would be to use a fixed EPFL implementation,
 however, in leu of that i think from a project perspective it would be
 beneficial for lift to have a corrected actor implementation that we have
 direct control of. I know DPP would certainly have this be his preference
 despite Jonas, Viktor and myself being commiters on both projects :-)

 Bottom line here is that we need this fixed, asap and the path of least
 resistance is to use lift-actor until EPFL fix the core actor code.


Seconded.



 Cheers, Tim



 On 16 Sep 2009, at 14:27, Kevin Wright wrote:

 Is there any reason not to go with something like the Akka framework?  I
 believe it has a lift-friendly license.

 On Wed, Sep 16, 2009 at 2:14 PM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:

 Guys,
 The Scala Actor issue has raised its head again.

 From November 2008 - June 2009, I did an epic battle with Scala actors and
 their memory retention issues.

 I finally wrote a Lift Actor library that made all the Scala Actor-related
 issues go away for the short-lived Actors that Lift uses as listeners for
 comet long-polling.

 It seems that the Actor issue is not gone.  I'm not sure it will be gone
 in Scala 2.8.

 I can make a change in Lift to move to Lift Actors in CometActor code.  It
 means that if you're using Scala Actors beyond !, !! and !? methods, you
 will have to change your code, otherwise it will just be a recompile.

 What do people think?

 Thanks,

 David

 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Git some: http://github.com/dpp







 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
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[Lift] Re: Why isn't this a trait in lift-json?

2009-09-14 Thread Viktor Klang
For me, annotations in Scala are permissible when having to deal with Java
frameworks that need annotations to work.
(examples: JAX-RS, JPA et al)

On Mon, Sep 14, 2009 at 8:06 PM, Timothy Perrett timo...@getintheloop.euwrote:


 Whilst I cant speak for anyone else - looking at Java these days
 generally makes me want to be sick and annotations are simply
 convulsion inducing ;-)

 There are some issues from a technical perspective with Scala
 annotations (like deep nested annotations for JPA), but otherwise, in
 terms of lift i think there are not really any good technical reasons
 why it is we dont use java annotations - its mainly a general
 dislike.

 Cheers, Tim

 On Sep 14, 6:34 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
  Can someone detail the minus side of annotations? (Other than it's just
 not the Scala/Lift way. :) Preferably in terms of what goal it inhibits.)
 
  Also keep in mind that the exception in terms of the code being in a
 Java source file is a temporary workaround that will be replaced when it's
 possible, so it's not a huge exception.

 



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[Lift] Re: Why isn't this a trait in lift-json?

2009-09-14 Thread Viktor Klang
On Mon, Sep 14, 2009 at 8:52 PM, Timothy Perrett timo...@getintheloop.euwrote:

 Viktor you disappoint me! Was hoping you might chime in with some witty
 retort about java ;-) lol.


Sorry mate, I'll have to buy you a beer at Devoxx! :D



 Your right though - sometimes there is just no other way if your
 inter-oping with some java framework that loves annotations.


Yup, the sad truth.


 Cheers, Tim

 On 14 Sep 2009, at 19:22, Viktor Klang wrote:

 For me, annotations in Scala are permissible when having to deal with Java
 frameworks that need annotations to work.
 (examples: JAX-RS, JPA et al)

 On Mon, Sep 14, 2009 at 8:06 PM, Timothy Perrett 
 timo...@getintheloop.euwrote:


 Whilst I cant speak for anyone else - looking at Java these days
 generally makes me want to be sick and annotations are simply
 convulsion inducing ;-)

 There are some issues from a technical perspective with Scala
 annotations (like deep nested annotations for JPA), but otherwise, in
 terms of lift i think there are not really any good technical reasons
 why it is we dont use java annotations - its mainly a general
 dislike.

 Cheers, Tim

 On Sep 14, 6:34 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
  Can someone detail the minus side of annotations? (Other than it's just
 not the Scala/Lift way. :) Preferably in terms of what goal it inhibits.)
 
  Also keep in mind that the exception in terms of the code being in a
 Java source file is a temporary workaround that will be replaced when it's
 possible, so it's not a huge exception.





 --
 Viktor Klang

 Blog: klangism.blogspot.com
 Twttr: viktorklang

 Lift Committer - liftweb.com
 AKKA Committer - akkasource.org
 Cassidy - github.com/viktorklang/Cassidy.git
 SoftPub founder: http://groups.google.com/group/softpub




 



-- 
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Blog: klangism.blogspot.com
Twttr: viktorklang

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AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
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[Lift] Re: Lift deal breakers

2009-09-14 Thread Viktor Klang
On Mon, Sep 14, 2009 at 8:20 PM, Timothy Perrett timo...@getintheloop.euwrote:


 Just wading into the fray here...

 Looking at people who have responded to this thread, they are mainly
 people i've not seen on the list before (sorry if your regulars
 perhaps i should pay more attention!) and that indicates to me that
 general users dont want *any* js in page (either in the head, the
 footer, or attributes) and this should be the default, not the
 exceptional case.

 Personally, this stuff used to really bother me when doing front end
 work. Luckily that is hardly ever now, but i see the point being made
 and would like to add my vote to free-ing the markup of inline JS.

 Thoughts?


I'd agree to this sentiment if it were not for DPPs excellent point that
we're talking about the markup Lift spits out, not the markup that lift
consumes.
I am too fond of graceful degradation, but publishing JS in a separate call
would be exotic to code at best.
The golden middle road perhaps is, to bake the JS into the bottom of the
page.

HOWEVER, it is important to know that direct JS callbacks (i.e.
onclick=foo()) outperforms _any_ other approach.




 Cheers, Tim

  More generally, Lift's mechanism for JavaScript support is *not*
 required.
   You could build your own mechanism that would generate clean mark-up,
  render JavaScript at the end of the page which would attach to DOM
 events.
   Everybody has access to Lift's GUID - Function binding.  You can use
 it
  just like it's used in SHtml, but generate your own mark-up.
 
 



-- 
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Twttr: viktorklang

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[Lift] Re: Why isn't this a trait in lift-json?

2009-09-14 Thread Viktor Klang
On Mon, Sep 14, 2009 at 9:00 PM, Naftoli Gugenheim naftoli...@gmail.comwrote:


 Wow, isn't it amazing how passionate people could be about something
 without having a reason? ;)


If you start me up if you start me up I'll never stop...


 Thanks for your answers, DPP!

 -
 Indrajit Raychaudhuriindraj...@gmail.com wrote:


 Absolutely, and just limit to that, no more.

 /Indrajit

 On Sep 14, 11:22 pm, Viktor Klang viktor.kl...@gmail.com wrote:
  For me, annotations in Scala are permissible when having to deal with
 Java
  frameworks that need annotations to work.
  (examples: JAX-RS, JPA et al)
 
  On Mon, Sep 14, 2009 at 8:06 PM, Timothy Perrett timo...@getintheloop.eu
 wrote:
 
 
 
 
 
 
 
   Whilst I cant speak for anyone else - looking at Java these days
   generally makes me want to be sick and annotations are simply
   convulsion inducing ;-)
 
   There are some issues from a technical perspective with Scala
   annotations (like deep nested annotations for JPA), but otherwise, in
   terms of lift i think there are not really any good technical reasons
   why it is we dont use java annotations - its mainly a general
   dislike.
 
   Cheers, Tim
 
   On Sep 14, 6:34 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
Can someone detail the minus side of annotations? (Other than it's
 just
   not the Scala/Lift way. :) Preferably in terms of what goal it
 inhibits.)
 
Also keep in mind that the exception in terms of the code being in
 a
   Java source file is a temporary workaround that will be replaced when
 it's
   possible, so it's not a huge exception.
 
  --
  Viktor Klang
 
  Blog: klangism.blogspot.com
  Twttr: viktorklang
 
  Lift Committer - liftweb.com
  AKKA Committer - akkasource.org
  Cassidy - github.com/viktorklang/Cassidy.git
  SoftPub founder:http://groups.google.com/group/softpub


 



-- 
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Blog: klangism.blogspot.com
Twttr: viktorklang

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AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
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[Lift] Re: Lift deal breakers

2009-09-14 Thread Viktor Klang
On Mon, Sep 14, 2009 at 9:29 PM, Charles F. Munat c...@munat.com wrote:


 When you say that direct JS callbacks (i.e. onclick=foo())
 outperforms _any_ other approach what is the source for your assertion?
 And what do you mean by outperforms? What are the criteria? Are you
 talking about speed?


Yes, page load time speed. (since the callback is loaded in relativity to
its owner (no lookups needed etc).
I did a quick search but the source of my info was nowhere to be found.

I did a rather extensive research a year back or so, inline-callback vs.
event delegation vs. end-of-page initialization.

I guess all depends on what performance you're looking for and how JS heavy
your app is.
For me, with a _very_ high performance (speed) requirement, it's vital that
one doesn't do any un-cacheable, avoidable requests.

But as I said, perhaps a good trade-off is to put the JS init at the end of
the page.



 If so, what is the magnitude of the difference? Is it significant?

 Without this information it is difficult to guess which approach would
 be better. Is moving the attaching of event handlers to a separate JS
 file going to significantly slow down my page? Then maybe it's not worth
 it. But if the difference is negligible, then keeping concerns separate
 is worth it to me.

 It's dangerous to say that A outperforms B without understanding exactly
 what that means.

 For me, separation of concerns outperforms mixing concerns in terms of
 development ease, reuse, and graceful degradation. Some of this may not
 apply to automatically generated code, of course.

 Chas.

 Viktor Klang wrote:
 
 
  On Mon, Sep 14, 2009 at 8:20 PM, Timothy Perrett
  timo...@getintheloop.eu wrote:
 
 
  Just wading into the fray here...
 
  Looking at people who have responded to this thread, they are mainly
  people i've not seen on the list before (sorry if your regulars
  perhaps i should pay more attention!) and that indicates to me that
  general users dont want *any* js in page (either in the head, the
  footer, or attributes) and this should be the default, not the
  exceptional case.
 
  Personally, this stuff used to really bother me when doing front end
  work. Luckily that is hardly ever now, but i see the point being made
  and would like to add my vote to free-ing the markup of inline JS.
 
  Thoughts?
 
 
  I'd agree to this sentiment if it were not for DPPs excellent point that
  we're talking about the markup Lift spits out, not the markup that lift
  consumes.
  I am too fond of graceful degradation, but publishing JS in a separate
  call would be exotic to code at best.
  The golden middle road perhaps is, to bake the JS into the bottom of the
  page.
 
  HOWEVER, it is important to know that direct JS callbacks (i.e.
  onclick=foo()) outperforms _any_ other approach.
 
 
 
 
  Cheers, Tim
 
More generally, Lift's mechanism for JavaScript support is *not*
  required.
 You could build your own mechanism that would generate clean
  mark-up,
render JavaScript at the end of the page which would attach to
  DOM events.
 Everybody has access to Lift's GUID - Function binding.  You
  can use it
just like it's used in SHtml, but generate your own mark-up.
   
 
 
 
 
  --
  Viktor Klang
 
  Blog: klangism.blogspot.com http://klangism.blogspot.com
  Twttr: viktorklang
 
  Lift Committer - liftweb.com http://liftweb.com
  AKKA Committer - akkasource.org http://akkasource.org
  Cassidy - github.com/viktorklang/Cassidy.git
  http://github.com/viktorklang/Cassidy.git
  SoftPub founder: http://groups.google.com/group/softpub
 
  

 



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[Lift] Re: email encoding problem

2009-09-12 Thread Viktor Klang
Content-Type: text/html; charset=us-ascii

IMHO that should read:

Content-Type: text/html; charset=UTF-8

So basically, the content-type isn't correctly set.

On Sat, Sep 12, 2009 at 5:55 PM, night_stalker usur...@gmail.com wrote:


 the last part is like:

 Subject: hi
 MIME-Version: 1.0
 Content-Type: multipart/alternative;
boundary==_Part_0_21171036.1252770284921

 --=_Part_0_21171036.1252770284921
 Content-Type: text/html; charset=us-ascii
 Content-Transfer-Encoding: 7bit

 p??/p
 --=_Part_0_21171036.1252770284921--

 I don't know how to set Content-Type ...

 On Sep 12, 10:34 pm, Indrajit Raychaudhuri indraj...@gmail.com
 wrote:
  Can you please check what the Content-Type field in the mail header
  looks like in the mail that you get?
 
  Cheers, Indrajit

 



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[Lift] Re: email encoding problem

2009-09-12 Thread Viktor Klang
Good catch!

On Sep 12, 2009 6:18 PM, Indrajit Raychaudhuri indraj...@gmail.com
wrote:


Indeed, but Content-Transfer-Encoding: 7bit could be the real
suspect.

I think, MimeBodyPart forces us-ascii charset for 7bit encoding.

Cheers, Indrajit

On Sep 12, 9:03 pm, Viktor Klang viktor.kl...@gmail.com wrote: 
Content-Type: text/html; charset...

 On Sat, Sep 12, 2009 at 5:55 PM, night_stalker usur...@gmail.com wrote:
   the last part is l...

 Viktor Klang   Blog: klangism.blogspot.com  Twttr: viktorklang   Lift
Committer - liftweb.com...

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[Lift] Re: PreCache doesn't take into account OrderBy and MaxRows?

2009-09-10 Thread Viktor Klang
On Thu, Sep 10, 2009 at 6:23 PM, harryh har...@gmail.com wrote:


 Consider:

 val venues = Venue.findAll(By(Venue.cityid, City.currentCity),
   NotNullRef(Venue.owner),
   OrderBy(Venue.id, Descending),
   MaxRows(10),
   PreCache(Venue.owner))

 This appears to be generating a query like so:

 SELECT  DISTINCT users.id, users.firstname, users.lastname FROM users
 WHERE id IN (SELECT owner FROM venues  WHERE cityid = 22  AND owner IS
 NOT NULL  )  - 970ms


Just out of curosity,

if you run the following query, how long does it take?

select u.id, u.firstname, u.lastname
from venues v
inner join users u on v.owner = u.id
where v.cityid = 22


 This will end up returning a much larger number of users than is
 required which seems bad.

 -harryh
 



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[Lift] Re: PreCache doesn't take into account OrderBy and MaxRows?

2009-09-10 Thread Viktor Klang
On Thu, Sep 10, 2009 at 8:15 PM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Thu, Sep 10, 2009 at 6:23 PM, harryh har...@gmail.com wrote:


 Consider:

 val venues = Venue.findAll(By(Venue.cityid, City.currentCity),
   NotNullRef(Venue.owner),
   OrderBy(Venue.id, Descending),
   MaxRows(10),
   PreCache(Venue.owner))

 This appears to be generating a query like so:

 SELECT  DISTINCT users.id, users.firstname, users.lastname FROM users
 WHERE id IN (SELECT owner FROM venues  WHERE cityid = 22  AND owner IS
 NOT NULL  )  - 970ms


 Just out of curosity,

 if you run the following query, how long does it take?


Ack! a very nice distinct fell away,

this is the real deal:

select distinct u.id http://u.id/, u.firstname, u.lastname
from venues v
inner join users u on v.owner = u.id
where v.cityid = 22



 select u.id, u.firstname, u.lastname
 from venues v
 inner join users u on v.owner = u.id
 where v.cityid = 22


 This will end up returning a much larger number of users than is
 required which seems bad.

 -harryh
 



 --
 Viktor Klang

 Blog: klangism.blogspot.com
 Twttr: viktorklang

 Lift Committer - liftweb.com
 AKKA Committer - akkasource.org
 Cassidy - github.com/viktorklang/Cassidy.git
 SoftPub founder: http://groups.google.com/group/softpub




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Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: PreCache doesn't take into account OrderBy and MaxRows?

2009-09-10 Thread Viktor Klang
On Thu, Sep 10, 2009 at 8:32 PM, harryh har...@gmail.com wrote:


 ~1125 ms for your query.
 ~50ms for the IN based on that lift currently generates.


*laughs* Query optimizers in the different RDBMSes never cease to amaze me
;D

Just for kicks, what about this?

SELECT  DISTINCT users.id, users.firstname, users.lastname FROM users
WHERE EXISTS (SELECT 1 FROM venues WHERE cityid = 22  AND owner  = users.id)




 This is doing things in the psql console on the same machine the
 database lives on.  It's not so much the query time that concerns me,
 as the amount of data being sent back in the results.  In my example
 at the top of the thread I only need 10 users, but the query is
 spitting back thousands.

 -harryh

 On Sep 10, 2:16 pm, Viktor Klang viktor.kl...@gmail.com wrote:
  On Thu, Sep 10, 2009 at 8:15 PM, Viktor Klang viktor.kl...@gmail.com
 wrote:
 
 
 
 
 
   On Thu, Sep 10, 2009 at 6:23 PM, harryh har...@gmail.com wrote:
 
   Consider:
 
   val venues = Venue.findAll(By(Venue.cityid, City.currentCity),
 NotNullRef(Venue.owner),
 OrderBy(Venue.id, Descending),
 MaxRows(10),
 PreCache(Venue.owner))
 
   This appears to be generating a query like so:
 
   SELECT  DISTINCT users.id, users.firstname, users.lastname FROM users
   WHERE id IN (SELECT owner FROM venues  WHERE cityid = 22  AND owner IS
   NOT NULL  )  - 970ms
 
   Just out of curosity,
 
   if you run the following query, how long does it take?
 
  Ack! a very nice distinct fell away,
 
  this is the real deal:
 
  select distinct u.id http://u.id/, u.firstname, u.lastname
  from venues v
  inner join users u on v.owner = u.id
  where v.cityid = 22
 
 
 
   select u.id, u.firstname, u.lastname
   from venues v
   inner join users u on v.owner = u.id
   where v.cityid = 22
 
   This will end up returning a much larger number of users than is
   required which seems bad.
 
   -harryh
 
   --
   Viktor Klang
 
   Blog: klangism.blogspot.com
   Twttr: viktorklang
 
   Lift Committer - liftweb.com
   AKKA Committer - akkasource.org
   Cassidy - github.com/viktorklang/Cassidy.git
   SoftPub founder:http://groups.google.com/group/softpub
 
  --
  Viktor Klang
 
  Blog: klangism.blogspot.com
  Twttr: viktorklang
 
  Lift Committer - liftweb.com
  AKKA Committer - akkasource.org
  Cassidy - github.com/viktorklang/Cassidy.git
  SoftPub founder:http://groups.google.com/group/softpub
 



-- 
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Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Creating your own tags?

2009-08-29 Thread Viktor Klang
Tim, if you really want to go that riute create an xslt to transform your
custom tags to luft tags?

On Aug 29, 2009 8:01 AM, marius d. marius.dan...@gmail.com wrote:


Tim, obscuring things may get you a really long way indeed. But once
the obscurity get broken and people figure out that they can do other
things by using strange undocumented tags (i.e lift tags) they could
cause lots of problems and side effects.

Personally I'd stay away from it. And if I'd need to create a CMS
templating mechanism with special nodes I'd probably create one
separated from Lift's templating engine as parsing XML in Scala is
pretty easy, and you can safely add CMS content specific semantics
without worrying about anything else. Such templating system would be
nothing more then a transformation between the CMS language to the one
understood by Lift. But that's just me ...

Br's,
Marius

On Aug 29, 2:22 am, Charles F. Munat c...@munat.com wrote:  Security by
obscurity, eh?   Tim...

  On 28/08/2009 21:47, marius d. marius.dan...@gmail.com wrote:  
Hey MariusFirst...

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[Lift] Re: Creating your own tags?

2009-08-29 Thread Viktor Klang
On Sat, Aug 29, 2009 at 9:53 AM, Timothy Perrett timo...@getintheloop.euwrote:


 Hey Viktor,

 I think you might be right... but how to plug such an XSLT into the
 template processing pipeline?


I'd guess it depends on how you want to handle it. if it's just templates I
guess you could manage it externally (use this cmd to deploy your file) or
have an automation so that when a file gets saved in a certain dir, it gets
piped through the XSLT and dumped into the real directory..




 Cheers, Tim

 PS: Glad to see your broken keyboard is still producing amusing
 results lol ;-)


:(



 On Aug 29, 7:57 am, Viktor Klang viktor.kl...@gmail.com wrote:
  Tim, if you really want to go that riute create an xslt to transform your
  custom tags to luft tags?
 
  On Aug 29, 2009 8:01 AM, marius d. marius.dan...@gmail.com wrote:
 
  Tim, obscuring things may get you a really long way indeed. But once
  the obscurity get broken and people figure out that they can do other
  things by using strange undocumented tags (i.e lift tags) they could
  cause lots of problems and side effects.
 
  Personally I'd stay away from it. And if I'd need to create a CMS
  templating mechanism with special nodes I'd probably create one
  separated from Lift's templating engine as parsing XML in Scala is
  pretty easy, and you can safely add CMS content specific semantics
  without worrying about anything else. Such templating system would be
  nothing more then a transformation between the CMS language to the one
  understood by Lift. But that's just me ...
 
  Br's,
  Marius
 
  On Aug 29, 2:22 am, Charles F. Munat c...@munat.com wrote: 
 Security by
  obscurity, eh?   Tim...
 
On 28/08/2009 21:47, marius d. marius.dan...@gmail.com wrote: 
 
 
  Hey MariusFirst...
 



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[Lift] Re: syntax question

2009-08-28 Thread Viktor Klang
table { for(i - 0 until 10) yield tr { for(j - 0 until 10) yield
td{j}/td } /tr  } /table


My guess is that you've omitted your yields

On Fri, Aug 28, 2009 at 10:34 PM, DavidV david.v.villa...@gmail.com wrote:


 and yes, I verified that it has the necessary information to iterate
 by substituting the td values with a println

 On Aug 28, 4:15 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
  Before it was empty or not compiling?
  Can you verify that it has what to iterate?
 
  -
 
  DavidVdavid.v.villa...@gmail.com wrote:
 
  Like this?
 
  def resultTable: NodeSeq  = {
table border=1
{for (r - 0 until analysis.slots.length) {
  tr
  {for (c - 0 until test.testvars.length) {
new CellType(calls(r)(c).output)
  }}
  /tr
}}
/table
}
 
  that is not working for me either, it still returns an empty table...
 
  can you by any chance demonstrate by editing this table?
 
  table
tr
  for (c - 0 until 10)  {
td {array(c)} /td
  }
/tr
  /table
 
  thanks,
  David
 
  On Aug 28, 3:49 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
 
   You can nest curly braces - just surround the for loop with another
 pair.
 
   -
 
   DavidVdavid.v.villa...@gmail.com wrote:
 
   This may be more of an HTML question, but since I haven't found an
   answer online, I'm working in Lift and I'm sure most people here can
   answer this easily I figured I'd ask.
 
   I am trying to create a dynamic HTML table, by looping through the
   rows and columns of the table and inserting variables from a two-
   dimensional array.
 
   my array is calls and is an Array[Array[Result]]
 
   The basic structure of the table that I want to create is:
 
   def resultTable: NodeSeq  = {
 table border=1
 for (r - 0 until analysis.slots.length) {
   tr
   for (c - 0 until test.testvars.length) {
 new CellType(calls(r)(c).output)
   }
   /tr
 }
 /table
 }
 
   I have a class CellType that returns a td variable content /td
 
   The resultTable method is in a snippet class and I am calling it from
   a separate HTML file.  All other mechanisms are working well since I
   tested a simple trtdTEST/td/tr within the same method and it
   created the table as expected.  Therefore, this is simply a syntax
   error.  I know you have to use {} to isolate scala code/variables in
   HTML, but I'm not sure how to do that when the brackets are necessary
   for the loop.
 
   Thanks for the help,
   David
 



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[Lift] Re: Bug in MappedEmail: emailPattern is wrong

2009-08-27 Thread Viktor Klang
On Thu, Aug 27, 2009 at 10:27 AM, Marc Boschma
marc+lift...@boschma.cxmarc%2blift...@boschma.cx
 wrote:

 Personally I use:


 ^(?:[a-z0-9!#$%'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%'*+/=?^_`{|}~-]+)*|(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*)@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$


Impressive!

It still doesn't tell you if the email is real or not ;)



 Marc

 On 27/08/2009, at 9:32 AM, David Pollak wrote:

 Thanks.

 Changed and pushed to GitHub.  Allow 2 hours for Maven availability.

 On Wed, Aug 26, 2009 at 4:15 PM, harryh har...@gmail.com wrote:


  What's the change to the RegEx?

 val emailPattern = Pattern.compile(^[a-z0-9._%-+]+@(?:[a-z0-9-]+\\.)+
 [a-z]{2,4}$)

 note the addition of the + to the allowed characters before the @

 -harryh




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[Lift] Re: Actors and Sockets

2009-08-26 Thread Viktor Klang
On Tue, Aug 25, 2009 at 11:42 PM, mal3 malcolm.gor...@gmail.com wrote:


 I want to read data from multiple sockets (typically about three
 sockets) which can each send their data to a set of actors (also
 typically about three actors). Multiple actors is no problem. But how
 to handle varying numbers of sockets is not clear to me. (Feeding the
 actor results into Lift I'll deal with when I have this sorted out.)

 Do you guys have a sense of whether it's realistic to roll my own
 socket handling or use MINA or AKKA or some other library to do it?


AKKA uses Netty for it's networking, you should really take a look at it, a
really sweet networking library from JBoss.



 Mal.

 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: simple question about a login form

2009-08-26 Thread Viktor Klang
On Wed, Aug 26, 2009 at 5:42 AM, jack jack.wid...@gmail.com wrote:


 I have a template with username and password fields. I want to submit
 to another page where I will, among other things, encrypt the
 password. But I don't want to show the password in the querystring
 before I encrypt it.

 Where do I encrypt it before lift puts it into the querystring?


Send it as a POST over HTTPS if you need information hiding + encryption.




 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: Re-factored Archetypes

2009-08-25 Thread Viktor Klang
 ended up with.
? ? ?
? ? ? Does this make sense? Do you see why I was confused by your
? ? reference to
? ? ? master?
? ? ?
? ? ? Chas.
? ? ?
? ? ? marius d. wrote:
? ? ? What I means is if you did a git pull from git master and
 ran
   mvn
? ? ? clean:clean install. That inherently means version
 1.1-SNAPSHOT
? ? ? Br's,
? ? ? marius
? ? ? On Aug 24, 11:49 am, Charles F. Munat c...@munat.com 
   http://c...@munat.com
? ? mailto:c...@munat.com c...@munat.com mailto:c...@munat.com
 %3Ec...@munat.com%3e
wrote:
? ? ? Hi, Marius...
? ? ? I don't know what you mean by Are you using master? What
 I
? ? did was use
? ? ? the Maven archetype to create a basic JPA lift app. Then I
   changed
? ? ? directory to the top directory and ran mvn compile.
 That's
? ? it. I got
? ? ? the errors you see. I didn't do anything else.
? ? ? I've tried blowing away .m2 and I've tried changing the
 scala
? ? version to
? ? ? 2.7.5 (from 2.7.4). No difference.
? ? ? Does the basic JPA lift app not compile until you do
 something
? ? else to
? ? ? it? The blank one worked fine. Can you create and compile
 the
? ? Basic JPA
? ? ? app on your machine without error? Maybe it's something on
 my
? ? machine,
? ? ? but everything else is working fine.
? ? ? The Maven command I used is reproduced below.
? ? ? Chas.
? ? ? marius d. wrote:
? ? ? Charles,
? ? ? AFAIK I removed all dependencies to javax.servlet.*
 classes
? ? even from
? ? ? archetypes. ?Are you using master? ... I did a full search
? ? and servlet
? ? ? things are not being used. The archetype looks ok to me
 ... Am
   I
? ? ? missing something?
? ? ? Br's,
? ? ? Marius
? ? ? On Aug 24, 9:06 am, Charles F. Munat c...@munat.com 
   http://c...@munat.com
? ? mailto:c...@munat.com c...@munat.com mailto:c...@munat.com
 %3Ec...@munat.com%3e
wrote:
? ? ? Nope. Same error, even after blowing away m2 and
 rerunning
? ? the basic
? ? ? archetype to create a new app.
? ? ? Chas.
? ? ? Charles F. Munat wrote:
? ? ? No on blowing away m2. I did switch to the blank
 archetype
? ? (which is
? ? ? what I actually wanted) and it worked fine. But I can
 try
? ? again with the
? ? ? basic and blowing away m2.
? ? ? Chas.
? ? ? Derek Chen-Becker wrote:
? ? ? It looks like this is still the older archive before
? ? HttpServletRequest
? ? ? → HTTPRequest. The code in master has the change
 applied,
? ? so I'm not
? ? ? sure why it's failing. The warnings are normal (I
 haven't
? ? figured out
? ? ? all of the tricks with the velocity templating), but
? ? something isn't
? ? ? being pulled correctly. Have you tried blowing away
 your
   .m2?
? ? ? Derek
? ? ? On Sun, Aug 23, 2009 at 9:45 PM, Charles F. Munat
? ? c...@munat.com http://c...@munat.com  mailto:c...@munat.com
 c...@munat.com
 
? ? ? mailto:c...@munat.com c...@munat.com 
   mailto:c...@munat.com c...@munat.com%3e mailto:c...@munat.com
 %3E%3Ec...@munat.com%3e%3e
wrote:
? ? ? ? ? I found this in the lift book and used it:
? ? ? ? ? mvn archetype:generate \
? ? ?
? ? -DarchetypeRepository=http://scala-tools.org/repo-snapshots\
 http://scala-tools.org/repo-snapshots%5C
  http://scala-tools.org/repo-snapshots%5C
? ? ? ? ? -DarchetypeGroupId=net.liftweb \
? ? ? ? ? -DarchetypeArtifactId=lift-archetype-jpa-basic \
? ? ? ? ? -DarchetypeVersion=1.1-SNAPSHOT \
? ? ? ? ? -DgroupId=com.foo.jpaweb \
? ? ? ? ? -DartifactId=JPADemo \
? ? ? ? ? -Dversion=1.0-SNAPSHOT
? ? ? ? ? During the creation of the basic jpa app, I got
 this:
? ? ? ? ? Downloading:
? ? ?
? ? ?
  http://scala-tools.org/repo-snapshots/net/liftweb/lift-archetype-jpa-.
 ..
? ? ? ? ? 44K
? ? ?
? ? 
  http://scala-tools.org/repo-snapshots/net/liftweb/lift-archetype-jpa-..
 .
? ? ? ? ? downloaded
 ?(lift-archetype-jpa-basic-1.1-SNAPSHOT.jar)
? ? ? ? ? [WARNING] *** CHECKSUM FAILED - Checksum failed on
? ? download: local =
? ? ? ? ? '66b831a190e2e072816e5b2acc8064287d94b371'; remote
 =
? ? ? ? ? '023a3bb1cf2994e837b18394a2eb3975c8735552' -
 RETRYING
? ? ? ? ? Downloading:
? ? ?
? ? ?
  http://scala-tools.org/repo-snapshots/net/liftweb/lift-archetype-jpa-.
 ..
? ? ? ? ? 44K
? ? ?
? ? 
  http://scala-tools.org/repo-snapshots/net/liftweb/lift-archetype-jpa-..
 .
? ? ? ? ? downloaded
 ?(lift-archetype-jpa-basic-1.1-SNAPSHOT.jar)
? ? ? ? ? [WARNING] *** CHECKSUM FAILED - Checksum failed on
? ? download: local =
? ? ? ? ? '66b831a190e2e072816e5b2acc8064287d94b371'; remote
 =
? ? ? ? ? '023a3bb1cf2994e837b18394a2eb3975c8735552' -
 IGNORING
? ? ? ? ? And a bunch of warnings:
? ? ? ? ?
 
  ...
 
  read more »
 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr

[Lift] Re: Notes from 8/19/09 Lift Committers Call - LIFT SESSION REPLICATION DISCUSSION

2009-08-24 Thread Viktor Klang
Please ignore the fact that my keyboard seems to be full of shite...

On Mon, Aug 24, 2009 at 9:39 AM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Mon, Aug 24, 2009 at 8:13 AM, marius d. marius.dan...@gmail.comwrote:




 On Aug 24, 12:06 am, David Pollak feeder.of.the.be...@gmail.com
 wrote:
  On Sun, Aug 23, 2009 at 10:45 AM, marius d. marius.dan...@gmail.com
 wrote:
 
   Hmmm .. I'm wondering if we can write a Scala compiler plugin that
   transform functions provided to Lift's S/SHtml function etc. into a
   richer FunctionX implementation that knows how to serialize it's
   members. We could restrict the types that as LiftSerializable on top
   of primitives, Calenars, SessionVar/RequestVar etc. If users need
   their own classes to be LiftSerilizable they would have to implement
   LiftSerializable trait.
 
  I think we can do it without explicit traits.  I think we just need to
 walk
  the graph for everything that's added to the LiftSession and see where
 it
  leads.  Any graph we can walk is something that we can serialize... even
  without Java serialization.  Any graph that ends in globals or some
 class
  that refers to native stuff (e.g., IO), then we're toast.

 Totally agree. The rationale for explicit LiftSerializable would be
 just for user defined types. Otherwise user's won't have to use it.
 Graphs may also have be cyclic paths ... it shouldn't be too big of a
 pain though. Furthermore if a dependency graph path leads say to an IO
 reference maybe that's unintentional user code doesn't really use that
 but compiler put it for whatever reason. If such cases are possible
 and could be determined maybe we could exclude that silently from the
 serialization operation and add a compile time warning.

 I guess we need to dig more into scala compiler plugin system.



 1. Isn't there a problem with references _inside_ methods that are
 impure/sideeffecting?

 s = { Db.myCachedInfoNotInSession foo s  }

 Regarding member references, a simple check for transient
 (sca...@transient == java *transient*) to forcve people to use transient
 members for non-serializable state.

 But IMHO the serialization problem is a (negative?) sideeffect of Lifts
 rich model GUID=Func approach.
 Perhpas there is a middle way, a way where we can replicate just enough to
 survive a node crash?




 
 
 
 
 
   Thoughts?
 
   Br's,
   Marius
 
   On Aug 23, 8:30 pm, marius d. marius.dan...@gmail.com wrote:
At a first glace Java serialization is needed because of its
 awareness
of the reference graph. But in the same time it does not perform
 well.
One way might be the byte level instrumentation that would induce
 code
to figure out the reference graph and know how to stream-ify it
 using
a given efficient protocol. But that induces risks and it involves
tons of work. I think would be doable though.
 
The problem is not really the technology of propagating session
information to other nodes. That's the easiest part, but tough one
 is
figuring out the low level reference graph and serialization
semantics. This is why JINI, JavaSpaces, JGroups, CORBA, JXTA, you
name it, are unlikely to help solving the fundamental problem.
 
Br's,
Marius
 
On Aug 23, 8:16 pm, Arthur avand...@gmail.com wrote:
 
 On Sun, Aug 23, 2009 at 7:04 PM, David
 
 Pollakfeeder.of.the.be...@gmail.com wrote:
  On Sun, Aug 23, 2009 at 4:50 AM, Kevin Wright
  kev.lee.wri...@googlemail.com wrote:
 
  I'm wondering if we can't leverage JavaSpaces to handle a lot
 of
   this
  stuff.  From my experience with the technology it seems to be a
   pretty good
  fit for the problem.
 
  Two reasons:
  - JavaSpaces is as far as I know, GPL and we will not mix any
 GPL
   into Lift
 
 JavaSpaces is just the specification. There are two
 implementations I
 know of: BlitzJavaSpaces (BSD) and GigaSpaces (proprietary?). I
 don't
 have hands on experience with either.
 
  - It doesn't solve the issue with low-level session replication
 which
   relies
  on serialization of the session data for transfer to another app
   server
  instance.
 
 Arthur
 
  --
  Lift, the simply functional web frameworkhttp://liftweb.net
  Beginning Scalahttp://www.apress.com/book/view/1430219890
  Follow me:http://twitter.com/dpp
  Git some:http://github.com/dpp
 



 --
 Viktor Klang

 Blog: klangism.blogspot.com
 Twttr: viktorklang

 Lift Committer - liftweb.com
 AKKA Committer - akkasource.org
 Cassidy - github.com/viktorklang/Cassidy.git
 SoftPub founder: http://groups.google.com/group/softpub




-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: Notes from 8/19/09 Lift Committers Call - LIFT SESSION REPLICATION DISCUSSION

2009-08-24 Thread Viktor Klang
On Mon, Aug 24, 2009 at 8:13 AM, marius d. marius.dan...@gmail.com wrote:




 On Aug 24, 12:06 am, David Pollak feeder.of.the.be...@gmail.com
 wrote:
  On Sun, Aug 23, 2009 at 10:45 AM, marius d. marius.dan...@gmail.com
 wrote:
 
   Hmmm .. I'm wondering if we can write a Scala compiler plugin that
   transform functions provided to Lift's S/SHtml function etc. into a
   richer FunctionX implementation that knows how to serialize it's
   members. We could restrict the types that as LiftSerializable on top
   of primitives, Calenars, SessionVar/RequestVar etc. If users need
   their own classes to be LiftSerilizable they would have to implement
   LiftSerializable trait.
 
  I think we can do it without explicit traits.  I think we just need to
 walk
  the graph for everything that's added to the LiftSession and see where it
  leads.  Any graph we can walk is something that we can serialize... even
  without Java serialization.  Any graph that ends in globals or some class
  that refers to native stuff (e.g., IO), then we're toast.

 Totally agree. The rationale for explicit LiftSerializable would be
 just for user defined types. Otherwise user's won't have to use it.
 Graphs may also have be cyclic paths ... it shouldn't be too big of a
 pain though. Furthermore if a dependency graph path leads say to an IO
 reference maybe that's unintentional user code doesn't really use that
 but compiler put it for whatever reason. If such cases are possible
 and could be determined maybe we could exclude that silently from the
 serialization operation and add a compile time warning.

 I guess we need to dig more into scala compiler plugin system.



1. Isn't there a problem with references _inside_ methods that are
impure/sideeffecting?

s = { Db.myCachedInfoNotInSession foo s  }

Regarding member references, a simple check for transient
(sca...@transient == java *transient*) to forcve people to use transient
members for non-serializable state.

But IMHO the serialization problem is a (negative?) sideeffect of Lifts rich
model GUID=Func approach.
Perhpas there is a middle way, a way where we can replicate just enough to
survive a node crash?




 
 
 
 
 
   Thoughts?
 
   Br's,
   Marius
 
   On Aug 23, 8:30 pm, marius d. marius.dan...@gmail.com wrote:
At a first glace Java serialization is needed because of its
 awareness
of the reference graph. But in the same time it does not perform
 well.
One way might be the byte level instrumentation that would induce
 code
to figure out the reference graph and know how to stream-ify it using
a given efficient protocol. But that induces risks and it involves
tons of work. I think would be doable though.
 
The problem is not really the technology of propagating session
information to other nodes. That's the easiest part, but tough one is
figuring out the low level reference graph and serialization
semantics. This is why JINI, JavaSpaces, JGroups, CORBA, JXTA, you
name it, are unlikely to help solving the fundamental problem.
 
Br's,
Marius
 
On Aug 23, 8:16 pm, Arthur avand...@gmail.com wrote:
 
 On Sun, Aug 23, 2009 at 7:04 PM, David
 
 Pollakfeeder.of.the.be...@gmail.com wrote:
  On Sun, Aug 23, 2009 at 4:50 AM, Kevin Wright
  kev.lee.wri...@googlemail.com wrote:
 
  I'm wondering if we can't leverage JavaSpaces to handle a lot of
   this
  stuff.  From my experience with the technology it seems to be a
   pretty good
  fit for the problem.
 
  Two reasons:
  - JavaSpaces is as far as I know, GPL and we will not mix any GPL
   into Lift
 
 JavaSpaces is just the specification. There are two implementations
 I
 know of: BlitzJavaSpaces (BSD) and GigaSpaces (proprietary?). I
 don't
 have hands on experience with either.
 
  - It doesn't solve the issue with low-level session replication
 which
   relies
  on serialization of the session data for transfer to another app
   server
  instance.
 
 Arthur
 
  --
  Lift, the simply functional web frameworkhttp://liftweb.net
  Beginning Scalahttp://www.apress.com/book/view/1430219890
  Follow me:http://twitter.com/dpp
  Git some:http://github.com/dpp
 



-- 
Viktor Klang

Blog: klangism.blogspot.com
Twttr: viktorklang

Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder: http://groups.google.com/group/softpub

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[Lift] Re: Has anyone tried Stax?

2009-08-18 Thread Viktor Klang
On Tue, Aug 18, 2009 at 4:22 PM, marius d. marius.dan...@gmail.com wrote:




 On Aug 18, 5:05 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
  You set whether you want a shared server, or dedicated/various speeds.
  In any case, is there room to entertain the thought of at some point
 adding support in Lift to propogate sessions across instances? (Is it easier
 now that it's been decoupled from servlets?)

 No it is not easier. The fundamental problem in distributing lift
 sessions is the bound functions. Sure, functions are serializable but
 their references may not be. For instance one can bind an ajax
 anonymous function and that functions can have a bunch of other
 references inside potentially other lambdas etc. Viktor was doing in
 the past some research to integrate with Terracotta but there were
 some issues. So consistently distributing Lift sessions in a clustered
 environment is a challenge but of course good ideas are more then
 welcome.


Yeah, it really was a can of worms...




 
  -
 
  Ryan Donahuedonahu...@gmail.com wrote:
 
  Is anybody using Stax for anything more than prototyping or examples?
  If so, what has your experience been?  Stax doesn't seem to fit lift
  very well, but I'd like to find out I'm wrong.  Specifically, it does
  not support sticky sessions:
 http://developer.stax.net/forum/topics/initial-questions.
  I assume a Stax app shares resources with others on the same server,
  so you'd likely need to scale to additional servers sooner than
  normal.  However, the lack of sticky sessions effectively caps a
  stateful lift app to one server.
 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Beginning Scala

2009-08-11 Thread Viktor Klang
I now, in my hand, hold a copy of the book!

I hope everyone take a chance to support David for all the awesomeness that
he's contributed to the Scala community!

-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: SOAP web services?

2009-08-11 Thread Viktor Klang
On Tue, Aug 11, 2009 at 8:32 PM, Alex Cruise a...@cluonflux.com wrote:


 Disclaimer: I worked at http://www.layer7tech.com/ for six years so I
 have a fair bit of déformation professionelle.

 rant target=urn:noOneInParticular

 While I wholeheartedly agree that SOAP, WSDL, WS-* and the whole
 mainstream SOA stack, as it's currently broadly defined and implemented,
 is ugly and verbose and redundant and regrettable, I'll posit that it is
 currently the *only* game in town that **meets all of the requirements**
 that drove its creation:

 * Vendor- and platform-neutral
 * Standards-based
 * Business semantics decoupled from transport
 * Supports message-level security (allowing decoupling from transport
 and business semantics)
 * Declarative service publishing and discovery, and automatic
 RPC/OO-style stub generation
 * ... and many more requirements that you, personally, may not ever feel
 the need for.

 But a lot of companies actually do need a significant subset of these
 requirements on a significant subset of their projects, and there is
 certainly a great deal of value in having a global, IT-industry-wide
 consensus (even among bitter competitors, which was never the case
 previously) on a set of technologies, standards and practices that
 actually do meet those requirements.

 /rant :)


So basically it's very good for very few.
In all other cases I'll opt for something more suiting :)




 -0xe1a

 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: SOAP web services?

2009-08-11 Thread Viktor Klang
On Tue, Aug 11, 2009 at 8:47 PM, Alex Cruise a...@cluonflux.com wrote:


 Viktor Klang wrote:
  So basically it's very good for very few.
 And for everyone else, it's at least useful at the outset, due to the
 maturity of tools, and will also interoperate well with emergent
 requirements that tend to pile up over the years the system is in
 production. :)  It's also very fair to point out that most of the
 mainstream SOA stack is totally overkill for non-enterprise applications.
  In all other cases I'll opt for something more suiting :)
 The title of my moribund presentation on this subject is SOA is Not For
 You (a reference to http://www.penny-arcade.com/comic/2004/3/24/ :)


SOA and SOAP are as RAPE is to GRAPE




 -0xe1a

 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: SOAP web services?

2009-08-07 Thread Viktor Klang
Hello Jacek,

actually, if I were you I'd consider implementing your webservices as REST
services and then just have your SOAP stubs call your rest services. (If
you're not using anything voodooesque)

Then you have the benefit of using the existing plumbing as much as
possible, while still maintaining your SOAP interface as well as a potential
migration path to something non-WSDL.

(I am severely biased by having to work with SOAP, which has scarred me for
life)

On Thu, Aug 6, 2009 at 5:26 PM, Jacek Furmankiewicz jace...@gmail.comwrote:


 I was reading through the Lift book PDF and it mentions only REST-
 style web services.

 In our case, we need to look at re-implementing a set of existing SOAP
 web services (is there anything like 'wsdl2scala' anywhere?).

 I would appreciate any best practices and suggestions for implementing
 SOAP web services in the context of a larger Lift app (and Scala in
 general).

 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Getting Started tutorial - not understanding some syntax

2009-07-30 Thread Viktor Klang
Hello Ben!

the following:

val square = (x:Int) = x * x

val square is the equivalent of a final reference in Java.

(x : Int) = x * x

This constructs a Function instance that takes an Int and returns that Int
squared.

The equivalent Java code would be something like:

interface FunctionR,P //We're ignoring variance here, as to not confuse
{
public R call(P p);
}

final FunctionInteger,Integer square = new FunctionInteger,Integer() {
 public Integer call(Integer i)
 {
 return i * i;
 }
}

And then you can do:

square.call(2) // 4

So, back to Scala:

val square = (x : Int) = x * x

square(2) // 4


On Thu, Jul 30, 2009 at 9:37 PM, ben b...@primrose.org.uk wrote:


 Hi,

 I feel I must apologise for this  post ... I've only been doing scala
 for a week, and lift for 3 days, but I'm stuck.
 I'm coming from an experienced java background, just struggling with
 some scala constructs.

 I feel I understand the basics of lambda and function literals - but
 I'm blown away by some of the syntax in the lift Getting Started
 tutorial.
 For example, given :

 val mylist = Array(1,2,3)
 mylist..foreach(v = println(v)

 Here I understand where v comes from - its each int in the list.

 In the tutorial (http://liftweb.net/docs/getting_started/
 mod_master.htmlhttp://liftweb.net/docs/getting_started/%0Amod_master.html
 )
 there is a function desc (Listing 15) :

 private def desc(td: ToDo, reDraw: () = JsCmd) =
  swappable(span{td.desc}/span,
 span{ajaxText(td.desc,
 v = {td.desc(v).save; reDraw()})}
 /span)

 For my own brain to try and break it down, I have :

  private def desc(td: ToDo, reDraw: () = JsCmd) = {
val myFunctionLiteral = (xxx: String) = {td.desc(xxx).save;
 println(!Desc function : + xxx); reDraw()}

swappable(span{td.desc}/span,
  span{ajaxText(td.desc, myFunctionLiteral)}/span)
  }

 This is called from the doList method :

 private def doList(reDraw: () = JsCmd)(html: NodeSeq): NodeSeq =
  toShow.
  flatMap(td =
   bind(todo, html,
  desc - desc(td, reDraw)
   ))

 I understand where the ToDo object td is coming from, and how the
 reDraw thing works, and how they are passed to the desc function,
 but what I don't understand at all is where the val xxx in
 myFunctionLiteral comes from ?
 How is it passed into the function ? Is it currying ?

 I'm sorry for such a vague question, I'm totally at sea here.

 Thankyou for reading this, and for any help you may provide !

 Ben

 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Getting Started tutorial - not understanding some syntax

2009-07-30 Thread Viktor Klang
On Thu, Jul 30, 2009 at 11:02 PM, DFectuoso santiago1...@gmail.com wrote:


 Viktor, that was a great explanation, im sure ben will apraciate that
 kind of teaching =)


Well, thank you.




 A follow up question that just made me wonder, what is the diference
 between

 val square = (x : Int) = x * x


This creates a final reference to a new function instance



 and
 def square(x:Int):Int = x * x


This creates a method

Now, you can transform a method into a function by adding an underscore
after it, like this:

def square(x : Int) = x * x

val sq = square _ //--- notice the underscore. (I always think of it as
detaching the method from an instance)

This is what the Scala REPL says:

scala def square(x : Int) = x * x
square: (Int)Int

scala val vsquare = (x : Int) = x * x
vsquare: (Int) = Int = function

scala val v2square = square _
v2square: (Int) = Int = function

scala square(2)
res0: Int = 4

scala vsquare(2)
res1: Int = 4

scala v2square(2)
res2: Int = 4






 ?


 On Jul 30, 1:49 pm, Viktor Klang viktor.kl...@gmail.com wrote:
  Hello Ben!
 
  the following:
 
  val square = (x:Int) = x * x
 
  val square is the equivalent of a final reference in Java.
 
  (x : Int) = x * x
 
  This constructs a Function instance that takes an Int and returns that
 Int
  squared.
 
  The equivalent Java code would be something like:
 
  interface FunctionR,P //We're ignoring variance here, as to not confuse
  {
  public R call(P p);
 
  }
 
  final FunctionInteger,Integer square = new FunctionInteger,Integer()
 {
   public Integer call(Integer i)
   {
   return i * i;
   }
 
  }
 
  And then you can do:
 
  square.call(2) // 4
 
  So, back to Scala:
 
  val square = (x : Int) = x * x
 
  square(2) // 4
 
 
 
  On Thu, Jul 30, 2009 at 9:37 PM, ben b...@primrose.org.uk wrote:
 
   Hi,
 
   I feel I must apologise for this  post ... I've only been doing scala
   for a week, and lift for 3 days, but I'm stuck.
   I'm coming from an experienced java background, just struggling with
   some scala constructs.
 
   I feel I understand the basics of lambda and function literals - but
   I'm blown away by some of the syntax in the lift Getting Started
   tutorial.
   For example, given :
 
   val mylist = Array(1,2,3)
   mylist..foreach(v = println(v)
 
   Here I understand where v comes from - its each int in the list.
 
   In the tutorial (http://liftweb.net/docs/getting_started/
   mod_master.html
 http://liftweb.net/docs/getting_started/%0Amod_master.html
   )
   there is a function desc (Listing 15) :
 
   private def desc(td: ToDo, reDraw: () = JsCmd) =
swappable(span{td.desc}/span,
   span{ajaxText(td.desc,
   v = {td.desc(v).save; reDraw()})}
   /span)
 
   For my own brain to try and break it down, I have :
 
private def desc(td: ToDo, reDraw: () = JsCmd) = {
  val myFunctionLiteral = (xxx: String) = {td.desc(xxx).save;
   println(!Desc function : + xxx); reDraw()}
 
  swappable(span{td.desc}/span,
span{ajaxText(td.desc, myFunctionLiteral)}/span)
}
 
   This is called from the doList method :
 
   private def doList(reDraw: () = JsCmd)(html: NodeSeq): NodeSeq =
toShow.
flatMap(td =
 bind(todo, html,
desc - desc(td, reDraw)
 ))
 
   I understand where the ToDo object td is coming from, and how the
   reDraw thing works, and how they are passed to the desc function,
   but what I don't understand at all is where the val xxx in
   myFunctionLiteral comes from ?
   How is it passed into the function ? Is it currying ?
 
   I'm sorry for such a vague question, I'm totally at sea here.
 
   Thankyou for reading this, and for any help you may provide !
 
   Ben
 
  --
  Viktor Klang
 
  Rogue Scala-head
 
  Blog: klangism.blogspot.com
  Twttr: viktorklang
 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Getting Started tutorial - not understanding some syntax

2009-07-30 Thread Viktor Klang
(If I've understood your question correctly)

the definition of ajaxText is as follows:

  def ajaxText(value: String, func: String = JsCmd): Elem =
ajaxText_*(value, Empty, SFuncHolder(func))

So what you're doing is that you're sending a callback function to ajaxText,
and it will be called with a String later.

On Thu, Jul 30, 2009 at 11:03 PM, ben b...@primrose.org.uk wrote:


 Hi Viktor,

 Thanks for your reply.

 I do understand the simple examples, like the one you were kind enough
 to post.

 My problem is that I just can't seem to break through from the simple
 examples to the code in the Getting Started tutorial 

 To elaborate, given the following in a scala console :

 scala val square = (x : Int) = x * x
 square: (Int) = Int = function

 scala square(2)
 res5: Int = 4

 I can easily (in my mind) see how that function literal works - ie
 function square takes an int and apply(s) a square on the value passed
 in. In my mind I can see where x is coming from - its clearly the
 value 2 passed in the operation square(2) - but I just don't get
 where the string xxx (in the code posted (from the tutorial - see
 Listing 15) is actually coming from ... there never seems to be the
 string passed to the function !


 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Getting Started tutorial - not understanding some syntax

2009-07-30 Thread Viktor Klang
Here's a short example:

val add = (a : Int, b : Int) = a + b
val sub = (a : Int, b : Int) = a - b
val div = (a : Int, b : Int) = a / b
val mul = (a : Int, b : Int) = a * b

//This is a method that takes an Int a, an Int b and a function that takes 2
Ints and produces an Int
def doMath(a : Int, b : Int, arith : (Int,Int) = Int) = arith(a,b)

scala doMath(1,2,add)
res1: Int = 3

scala doMath(1,2,sub)
res2: Int = -1

scala doMath(2,1,div)
res3: Int = 2

scala doMath(1,2,mul)
res4: Int = 2

On Thu, Jul 30, 2009 at 11:36 PM, ben b...@primrose.org.uk wrote:


 Hi,

 Thanks for patience (and for the interesting subpost on the diff
 between val  def) !
 OK, the callback thing you suggested is starting to clear the mist ...
 I found this article :
 http://www.ibm.com/developerworks/java/library/j-scala01228.html
 I've not had time to read it fully yet, as its getting late over here
 in the UK, but it looks like what I'm after. I'll have a proper read
 tomorrow.

 Thanks again for your time.

 Ben

 



-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: Getting Started tutorial - not understanding some syntax

2009-07-30 Thread Viktor Klang
But you can also create and pass a function inline:

scala doMath(1,2,(a : Int, b : Int) = a ^ b)
res5: Int = 3


On Thu, Jul 30, 2009 at 11:43 PM, Viktor Klang viktor.kl...@gmail.comwrote:

 Here's a short example:

 val add = (a : Int, b : Int) = a + b
 val sub = (a : Int, b : Int) = a - b
 val div = (a : Int, b : Int) = a / b
 val mul = (a : Int, b : Int) = a * b

 //This is a method that takes an Int a, an Int b and a function that takes
 2 Ints and produces an Int
 def doMath(a : Int, b : Int, arith : (Int,Int) = Int) = arith(a,b)

 scala doMath(1,2,add)
 res1: Int = 3

 scala doMath(1,2,sub)
 res2: Int = -1

 scala doMath(2,1,div)
 res3: Int = 2

 scala doMath(1,2,mul)
 res4: Int = 2


 On Thu, Jul 30, 2009 at 11:36 PM, ben b...@primrose.org.uk wrote:


 Hi,

 Thanks for patience (and for the interesting subpost on the diff
 between val  def) !
 OK, the callback thing you suggested is starting to clear the mist ...
 I found this article :
 http://www.ibm.com/developerworks/java/library/j-scala01228.html
 I've not had time to read it fully yet, as its getting late over here
 in the UK, but it looks like what I'm after. I'll have a proper read
 tomorrow.

 Thanks again for your time.

 Ben

 



 --
 Viktor Klang

 Rogue Scala-head

 Blog: klangism.blogspot.com
 Twttr: viktorklang




-- 
Viktor Klang

Rogue Scala-head

Blog: klangism.blogspot.com
Twttr: viktorklang

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[Lift] Re: HadoopDB

2009-07-23 Thread Viktor Klang
On Wed, Jul 22, 2009 at 11:52 PM, Meredith Gregory lgreg.mered...@gmail.com
 wrote:

 Alex, Viktor,

 i think write semantics could get complicated quickly, actually. However, i
 was initially responding to the idea that trad business object models don't
 give way to analytics. Being able to make read-only queries against large
 volumes of data using the original business object schema seems to me like a
 win -- even if it's only used to populate a db that's sliced up in a
 different way for further analytics processing.


So basically, what's needed on top of HadoopDB is a service that updates
data as needed from external data sources.




 Best wishes,

 --greg

 On Wed, Jul 22, 2009 at 2:44 PM, Alex Cruise a...@cluonflux.com wrote:


 Viktor Klang wrote:
  Absolutely, perhaps I'm tainted by write-heavy systems and perhaps I'm
  just failing to see the overhead we're talking about.
  Perhaps I overlooked it, but the paper didn't mention performance for
  small writes and potentially multiple nodespanning transactions.
 HadoopDB makes no claim to any support for writes at all, I'm just
 speculating that It Should Be Possible given my understanding of its
 architecture, which is admittedly limited and based solely on reading
 the paper and a bit of the code. :)
  I'm inclined to believe that some sort of immutable records storage
  would simlify the semantics (analytic queries are IMHO very seldom
  demanding real-time snapshots)
 Analytical queries against static data are exactly what it's for.  I
 have no experience with its competition, namely parallel/distributed
 column-oriented databases, so I can't say whether they're any happier
 with writes.

 FYI I brought up HadoopDB on the NoSQL list too but so far not too many
 takers...

 -0xe1a





 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com

 



-- 
Viktor Klang

Rogue Scala-head

Twttr: viktorklang

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[Lift] Re: HadoopDB

2009-07-23 Thread Viktor Klang
On Thu, Jul 23, 2009 at 6:46 PM, Meredith Gregory
lgreg.mered...@gmail.comwrote:

 Viktor,

 Yes. For example, in the biotech case the data is coming in from a
 device-based origin.


This is interesting. Analyzing the AST of the query for the data, then
identify the different data sources and then query each for all relevant
data since last refresh, then push that into partitions and then schedule
the Jobs and execute SQL and then merge/reduce the results.




 Best wishes,

 --greg

 On Thu, Jul 23, 2009 at 2:35 AM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Wed, Jul 22, 2009 at 11:52 PM, Meredith Gregory 
 lgreg.mered...@gmail.com wrote:

 Alex, Viktor,

 i think write semantics could get complicated quickly, actually. However,
 i was initially responding to the idea that trad business object models
 don't give way to analytics. Being able to make read-only queries against
 large volumes of data using the original business object schema seems to me
 like a win -- even if it's only used to populate a db that's sliced up in a
 different way for further analytics processing.


 So basically, what's needed on top of HadoopDB is a service that updates
 data as needed from external data sources.




 Best wishes,

 --greg

 On Wed, Jul 22, 2009 at 2:44 PM, Alex Cruise a...@cluonflux.com wrote:


 Viktor Klang wrote:
  Absolutely, perhaps I'm tainted by write-heavy systems and perhaps I'm
  just failing to see the overhead we're talking about.
  Perhaps I overlooked it, but the paper didn't mention performance for
  small writes and potentially multiple nodespanning transactions.
 HadoopDB makes no claim to any support for writes at all, I'm just
 speculating that It Should Be Possible given my understanding of its
 architecture, which is admittedly limited and based solely on reading
 the paper and a bit of the code. :)
  I'm inclined to believe that some sort of immutable records storage
  would simlify the semantics (analytic queries are IMHO very seldom
  demanding real-time snapshots)
 Analytical queries against static data are exactly what it's for.  I
 have no experience with its competition, namely parallel/distributed
 column-oriented databases, so I can't say whether they're any happier
 with writes.

 FYI I brought up HadoopDB on the NoSQL list too but so far not too many
 takers...

 -0xe1a





 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com





 --
 Viktor Klang

 Rogue Scala-head

 Twttr: viktorklang





 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com

 



-- 
Viktor Klang

Rogue Scala-head

Twttr: viktorklang

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[Lift] Re: HadoopDB

2009-07-22 Thread Viktor Klang
Read it earlier today.

It's quite interesting, transcoding SQL to MapReduce jobs that uses RDBMes
as datasources

I see this really useful for analytical querying over huge datasets, but I
wouldn't imagine it as an option as persistence-store for domain/business
objects.



On Wed, Jul 22, 2009 at 5:53 PM, Meredith Gregory
lgreg.mered...@gmail.comwrote:

 David, et al,

 Alex Cruise brought to my attention this paper and 
 prototypehttp://db.cs.yale.edu/hadoopdb/hadoopdb.htmlof a mapping of SQL to 
 Hadoop. i believe this has relevance both to lift and
 goat rodeo.

 Best wishes,

 --greg

 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com

 



-- 
Viktor Klang

Rogue Scala-head

Twttr: viktorklang

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[Lift] Re: HadoopDB

2009-07-22 Thread Viktor Klang
On Wed, Jul 22, 2009 at 8:05 PM, Alex Cruise a...@cluonflux.com wrote:


 Viktor Klang wrote:
  Read it earlier today.
 
  It's quite interesting, transcoding SQL to MapReduce jobs that uses
  RDBMes as datasources
 
  I see this really useful for analytical querying over huge datasets,
  but I wouldn't imagine it as an option as persistence-store for
  domain/business objects.
 Definitely not yet, but their approach *should* be amenable to
 read-mostly/some-writes use cases in that it tries to discover which
 node(s) hold the data that will be affected by analyzing the SQL AST;
 distributed transactions are awful but at least they can be contained to
 a subset of DBMS nodes.


I'm also interested in the possibility to use other/develop new query
languages that can use the same mechanics.

Gregory: Do you see Project Stockholm benefitting from this?




 -0xe1a

 



-- 
Viktor Klang

Rogue Scala-head

Twttr: viktorklang

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[Lift] Re: HadoopDB

2009-07-22 Thread Viktor Klang
On Wed, Jul 22, 2009 at 10:03 PM, Meredith Gregory lgreg.mered...@gmail.com
 wrote:

 Viktor,

 Your comment is intriguing to me. As near as i can tell the Web 2.0 trend
 has this effect that what started out as a traditional domain/business
 object model scales out to the point where it starts to look a lot like an
 analytics db -- especially when you're trawling for patterns, trends and
 other marketing-like data.


Greg,

Absolutely, perhaps I'm tainted by write-heavy systems and perhaps I'm just
failing to see the overhead we're talking about.
Perhaps I overlooked it, but the paper didn't mention performance for small
writes and potentially multiple nodespanning transactions.
I'm inclined to believe that some sort of immutable records storage would
simlify the semantics (analytic queries are IMHO very seldom demanding
real-time snapshots)




 As for my little project, i think it's a perfect match for DSLs that cover
 analytic set ups like i see in biology and computational finance.

 Best wishes,

 --greg

 On Wed, Jul 22, 2009 at 12:03 PM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Wed, Jul 22, 2009 at 8:05 PM, Alex Cruise a...@cluonflux.com wrote:


 Viktor Klang wrote:
  Read it earlier today.
 
  It's quite interesting, transcoding SQL to MapReduce jobs that uses
  RDBMes as datasources
 
  I see this really useful for analytical querying over huge datasets,
  but I wouldn't imagine it as an option as persistence-store for
  domain/business objects.
 Definitely not yet, but their approach *should* be amenable to
 read-mostly/some-writes use cases in that it tries to discover which
 node(s) hold the data that will be affected by analyzing the SQL AST;
 distributed transactions are awful but at least they can be contained to
 a subset of DBMS nodes.


 I'm also interested in the possibility to use other/develop new query
 languages that can use the same mechanics.

 Gregory: Do you see Project Stockholm benefitting from this?




 -0xe1a





 --
 Viktor Klang

 Rogue Scala-head

 Twttr: viktorklang





 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com

 

Best wishes

-- 
Viktor Klang

Rogue Scala-head

Twttr: viktorklang

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[Lift] Re: File upload streaming and progress monitoring ...

2009-07-19 Thread Viktor Klang
Awesome work guys!

On Sat, Jul 18, 2009 at 8:54 PM, marius d. marius.dan...@gmail.com wrote:


 Great. Let me know if I can help with anything.

 Br's,
 Marius

 On Jul 18, 9:22 pm, Timothy Perrett timo...@getintheloop.eu wrote:
  Marius,
 
  This is awesome. Things are now working as expected - I knew this
  wasn't a browser connection issue causing the problems.
 
  The code in the widget package is pretty rubbish right now, but i just
  had time to hack together a hardcoded sample to make sure that your
  commit actually fix the problem... Im happy to report that it does
  indeed now work exactly as required.
 
  The next step is to work backwards and clean all the code up and fix
  the cross-browser issues as right now it works in firefox and IE but
  not in safari or chrome et al.
 
  Cheers, Tim
 
  On Jul 18, 3:08 pm, marius d. marius.dan...@gmail.com wrote:
 
   Just committed a fix ...
 
   Br's,
   Marius
 
   On Jul 18, 4:10 pm, marius d. marius.dan...@gmail.com wrote:
 
A little more on this ...
 
Living the above synchronized blocks where they are but removing the
one from LiftSession.runParams  made it work properly. Looks like
 this
one was holding the lock while the file upload progress was
 happening.
Dave I'm not really sure why in runParams the the toRun is obtained
from a synchronized block ... is it because we'rreading from
messageCallback there ? ..cause otherwise the entire expression is
about functions composition that does not change any state.
 
Br's,
Marius
 
On Jul 18, 3:57 pm, Marius marius.dan...@gmail.com wrote:
 
 HI there,
 
 I know, there have been several other threads around the topic but
 I
 just wanted to yield somethings here. In the past few days I've
 been
 talking with Tim as he was having problems with his FileUpload
 widget.
 Even with short polling the progress was not reported even though
 the
 LiftSession.progressListener was properly called.
 
 Today I started to look into it and here is what I've done:
 
 1. Here is the markup:
 
   iframe id=upload_target name=upload_target src=#
 style=width:
 0;height:0;border:0px solid #fff;/iframe
 
   lift:Upload.render form=POST multipart=true id=upload_form
 target=upload_target
 f:inputFile/
 input type=submit value=Upload/
   /lift:Upload.render
 
   A simple snippet that uses the invisible iframe trick to upload
 stuff in the background. The so called Ajax upload. (I had to add
 the target attribute into the supported form snippet attributed but
 that's ok)
 
 2. In boot had something like:
 
 LiftSession.onSetupSession = ((session: LiftSession) = {
   session.progessListener = Full((chunk, total, index) = {
  Thread.sleep(100)
  println(index +  read  + chunk +  out of  + total + 
  +
 Thread.currentThread)
   })
 }) :: Nil
 
 Just monitor the progress ... and to make it last a little
 longer
 I'm sleeping for 100 milliseconds
 
 3. I set the GC polling to 10 seconds. The think is that GC polling
 would be just like the short polling for getting the progress
 status
 back in the browser.
 
 The behavior that I observed was that while I was uploading a 30 Mb
 +
 file the polling requests timed out after 5 secconds per
 LiftRules.ajaxPostTimeout. This means that our progress monitoring
 ajax request would have timed out as well. On the server side the
 execution got stuck until the upload was complete.
 LiftServlet.handleAjax was not called until the upload terminates.
 
 Initially I thought that this has to do to limited request channels
 that browser have but the thing is that we have several places in
 Lift
 code where we synchronize things. Such as LiftSession.getSession,
 LiftSession.fixSessionTime etc. Acquiring these locks made the
 progress polling to hang until the upload terminated. Of course
 removing th synchronized block made the polling to work right
 during
 the file upload. Now this was just for test ... I'm not suggesting
 to
 remove the synchronized blocks as  we'd loose consistency but this
 looks to stay in the way of properly dealing with multiple parallel
 request per same session like fileupload and progress monitoring.
 
 It appears that there is either a thread starvation situation or
 simply a lock that is held while upload is is progress.
 
 Br's,
 Marius
 



-- 
Viktor Klang

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Scala Loudmouth
Lift Committer

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[Lift] Re: ANN: Akka Actor Kernel: RESTful Distributed Persistent Transactional Actors

2009-07-13 Thread Viktor Klang
Instead of:

class MyActor extends Actor {
makeTransactionRequired …

}

woudn't it be clean to have:

trait TxRequired
{
self : TransactionManagement =

makeTransactionRequired
}

class MyActor extends Actor with TxRequired

{

}




On Mon, Jul 13, 2009 at 11:04 AM, Jonas Bonér jbo...@gmail.com wrote:


 Hi.

 On Jul 13, 9:51 am, Timothy Perrett timo...@getintheloop.eu wrote:
  From what I can see, its not just about concurrency, right? STM is
 probally
  used in conjunction with Cassandra...?
 

 Right. Even though messages in the actor model are immutable the
 actors are not. If they were they would be almost useless.

 The actor model is great for some use cases but terrible for others. I
 have many times felt like I would like to have a transactional
 compositional message flows. This is an attempt to solve that problem
 (and some other problems as well).

 The STM is working with managed data structures like TransactionalMap/
 Vector/Ref. Accessing them outside a tx yields an error. The STM also
 understand and works with asynchronous messaging something that is not
 trivial.

 I think there is some synergy between both Lift and Goat Rodeo. Would
 love to see what could come out of that. I am open for all suggestions/
 crazy ideas.

 Thank, Jonas.
  Cheers, Tim
 
  On 13/07/2009 07:25, marius d. marius.dan...@gmail.com wrote:
 
   I wonder why STM in a message passing concurrency model where things
   supposed to be immutable.
 



-- 
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Scala Loudmouth
Lift Committer

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[Lift] Re: ANN: Akka Actor Kernel: RESTful Distributed Persistent Transactional Actors

2009-07-13 Thread Viktor Klang
By the way, installing AKKA requires currently some hand-waving to add
dependencies that are not resolved:

com.facebook.fb303-1.0.jar
org.apache.cassandra:cassandra:jar:0.4.0-dev

Or is my Maven just b0rked?

On Mon, Jul 13, 2009 at 11:15 AM, Viktor Klang viktor.kl...@gmail.comwrote:

 Instead of:

 class MyActor extends Actor {
 makeTransactionRequired …

 }

 woudn't it be clean to have:

 trait TxRequired
 {
 self : TransactionManagement =

 makeTransactionRequired
 }

 class MyActor extends Actor with TxRequired

 {

 }




 On Mon, Jul 13, 2009 at 11:04 AM, Jonas Bonér jbo...@gmail.com wrote:


 Hi.

 On Jul 13, 9:51 am, Timothy Perrett timo...@getintheloop.eu wrote:
  From what I can see, its not just about concurrency, right? STM is
 probally
  used in conjunction with Cassandra...?
 

 Right. Even though messages in the actor model are immutable the
 actors are not. If they were they would be almost useless.

 The actor model is great for some use cases but terrible for others. I
 have many times felt like I would like to have a transactional
 compositional message flows. This is an attempt to solve that problem
 (and some other problems as well).

 The STM is working with managed data structures like TransactionalMap/
 Vector/Ref. Accessing them outside a tx yields an error. The STM also
 understand and works with asynchronous messaging something that is not
 trivial.

 I think there is some synergy between both Lift and Goat Rodeo. Would
 love to see what could come out of that. I am open for all suggestions/
 crazy ideas.

 Thank, Jonas.
  Cheers, Tim
 
  On 13/07/2009 07:25, marius d. marius.dan...@gmail.com wrote:
 
   I wonder why STM in a message passing concurrency model where things
   supposed to be immutable.
 



 --
 Viktor Klang

 Java Specialist
 Scala Loudmouth
 Lift Committer




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[Lift] Re: Standardizing widget APIs

2009-07-11 Thread Viktor Klang
On Sat, Jul 11, 2009 at 10:15 PM, Timothy Perrett
timo...@getintheloop.euwrote:



 Any technical feedback Viktor? Suggestions for possible ways to
 enforce a structure / life-cycle?


I'm not sure, depends I guess.
Just a simple onLoad/onUnload callback could be enough...
(The unload is to make sure not to leak mem if you're just reloading the
webapp without restarting the server)




 Cheers, Tim

 
  I like it

 



-- 
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Lift Committer

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[Lift] Re: Problem with jQuery/JavaScript and Liftweb because of Doctype

2009-07-08 Thread Viktor Klang
We want lift to work on those platforms. We need a work-around

On Wed, Jul 8, 2009 at 11:19 AM, fbettag fr...@bett.ag wrote:


 *Any Lift Project, not Problem. Sorry ;)

 On 8 Jul., 10:47, fbettag fr...@bett.ag wrote:
  The Problem isn't in Scala nor in Lift nor in jQuery. It's a Firefox
  bug when it gets Content-Type application/xhtml+xml. Same for Safari.
 
  Just try $(myobject).load(/some/url/from/lift/with/html/output)
  with JavaScript on any Lift problem.
 
  I don't know why you would want to debug a lift-app when all the links
  i've posted so far show problems with the Browser's implementation of
  application/html+xml, NOT lift.
 
  On 8 Jul., 05:03, David Pollak feeder.of.the.be...@gmail.com wrote:
 
   2009/7/7 fbettag fr...@bett.ag
 
Sorry this is giving me headaches. I don't even know what to look
for.. :(
The Problem is also described here:
   http://www.nabble.com/Namespace-failure-td21982365s27240.html
 
Is there anyway i can spoof the content-type for a comet actor from
application/xhtml+xml to something else? like text/html or only
application/xhtml.
That would fix the issue for now.
 
   I don't understand what the problem is.  Please write some code that
   reproduces it so I can actually see *exactly* where the problem is
 happening
   for you.  Only then can I debug it.
 
best regards
 
On 1 Jul., 04:58, David Pollak feeder.of.the.be...@gmail.com
 wrote:
 Please fork this projecthttp://
github.com/dpp/lift_1_1_sample/tree/masterand
 provide
 an example of the failure.  I'll knock something together than
 overcomes the problem.
 
 2009/6/30 fbettag fr...@bett.ag
 
  To describe it a little cleaner:
 
  in Safari 4, whenever i try to $('#foo').load('/some.html'), it
 fails
  with Error: NO_MODIFICATION_ALLOWED_ERR: DOM Exception 7 since
 the
  content-type is text/html+xml.
  described here:
 
 http://groups.google.com/group/jquery-en/browse_thread/thread/de95e8a.
..
 
  in Firefox there is a similar problem (error up at the first
 post)
  which happens because FF kinda sees an error on the
 lift-generated
  XHTML/XML which is caused because the doctype seems to be strict
 by
  default (i guess).
  described here:
 
 http://fitzsimmons.ca/jquery-xhtml-11-strict-and-ns_error_invalid_poi.
..
 
  I put up some really simple stuff in 'some.html' with 4 html
 tags, and
  it fails on Safari and on Firefox.
 
  When i try to set the Doctype to transitional, the Browser seems
 to
  ignore it somehow, i guess it's because of the ?xml? tag that
 occurs
  before the doctype.
 
  Is anyone else here using $(..).load('url') on a lift'ed
 project?
 
  On Jun 30, 11:48 pm, David Pollak feeder.of.the.be...@gmail.com
 
  wrote:
   What missing doctype?
 
   2009/6/29 fbettag fr...@bett.ag
 
On Safari i get Error: NO_MODIFICATION_ALLOWED_ERR: DOM
 Exception
7.
This seems to be a safari 4 specific problem due to
 content-type
text/
html+xml. See
 
   http://groups.google.com/group/jquery-en/browse_thread/thread/de95e8a
 .
  ..
 
On Jun 30, 7:39 am, fbettag fr...@bett.ag wrote:
 Hey guys, i've been having troubles with jQuery and
Firefox/Safari
  due
 to the missing Doctype all night long:
 
 Uncaught exception: [Exception... Component returned
 failure
code:
 0x80004003 (NS_ERROR_INVALID_POINTER)
 [nsIDOMNSHTMLElement.innerHTML]  nsresult: 0×80004003
 (NS_ERROR_INVALID_POINTER)  location: JS frame ::
   http://yourserver/include/jquery.js
 :: anonymous :: line 11″  data: no]
 
 The issue is described here, altho it kinda is somehow
 faulty
xml
  on
 my part:
 
   http://fitzsimmons.ca/jquery-xhtml-11-strict-and-ns_error_invalid_poi
 .
  ..
 
 Is there any way to prepend a DocType? Searching the group
 didn't
  turn
 anything useful up.
 
 Best regards
 
   --
   Lift, the simply functional web frameworkhttp://liftweb.net
   Beginning Scalahttp://www.apress.com/book/view/1430219890
   Follow me:http://twitter.com/dpp
   Git some:http://github.com/dpp
 
 --
 Lift, the simply functional web frameworkhttp://liftweb.net
 Beginning Scalahttp://www.apress.com/book/view/1430219890
 Follow me:http://twitter.com/dpp
 Git some:http://github.com/dpp
 
   --
   Lift, the simply functional web frameworkhttp://liftweb.net
   Beginning Scalahttp://www.apress.com/book/view/1430219890
   Follow me:http://twitter.com/dpp
   Git some:http://github.com/dpp
 



-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: Becoming a Scala/Lift Guru

2009-07-06 Thread Viktor Klang
I say: Go Eric go!

Nothing is impossible with the right attitude!

On Mon, Jul 6, 2009 at 12:17 PM, Timothy Perrett timo...@getintheloop.euwrote:


 Ellis,

 Im afraid I disagree with you - Eric does not state what type of
 eComerce application he wants to create... IMO, this is very
 subjective. Lift ships out of the box with PayPal integration - one
 could say that a site which allows a user to pay via paypal is
 eCommerce... would you disagree?

 If Eric takes on advice from the Lift Book and perhaps a learning
 scala book like DPP's, then asks lift related questions on here when
 he needs specific help im sure he'll be fine... everyone has to start
 somewhere and saying Lift is only appropriate for hardcore programmers
 because its a new framework is wrong IMHO.

 Eric, good luck to you - the lift community is a great place to start
 your programming endeavors; you probably have a slightly steeper
 learning curve than most, but provided you have grit and determination
 there is nothing to say you will not reach your goals. Think
 positive.

 Cheers, Tim

 On Jul 6, 10:13 am, Ellis ellis.whiteh...@gmail.com wrote:
  Hi Eric,
 
  Here are a few comments and suggestions.
 
  - Honestly, I don't think that lift and scala are the right places for
  you to start out.  The systems are very powerful, but relatively new,
  and so they are still geared towards more experienced programmers.
  - You'll need more than a month to become comfortable with an entirely
  new programming environment.
  - The java toolset can be confusing.  Try NetBeans; it's easier to
  understand than Eclipse.
  - An e-commerce program would take years to get right, but if that's
  what inspires you, you might want to focus on just small parts of such
  a program instead.
 
  Cheers,
  Ellis
 
  On Jul 6, 5:13 am, eric cs eeri...@gmail.com wrote:
 
 
 
   Hi guys,
 
   I saw some posts on Scala website about helping newcomers and I was
   wondering if some of you would be kind enough to help me out to start
   with Scala/Lift.
   My main problem is I am not a programmer yet but I really really want
   to be, I've been studying Ruby/Rails, Php/Zend/Symfony,Mvc,Design
   Patterns,Uml,Sql and some Java. I read some books but I don't get my
   head to think like a programer.
   I really like OO,Design Patterns, Uml but I don't know how to apply
   that to a full application, how to link everything together,
   classes,objects(books about that?Not about those items but how to put
   everything together)...I know a lot of the theory and concepts but no
   practice.
   I have all july available to learn that 12 hours a day or more if
   necessary I just need a push, someone to teach/help me out.
   What's more, I saw a post saying that I could learn Scala from scratch
   without learning Java, it's possible, not so much with Groovy. If it's
   not what parts of Java do I need to know, in case some of you tell me
   learn Java first(the easy answer).Do I need a lot of experience in
   Java to jump in in Scala? I know it helps but I would like to finish
   my first e-commerce in august, 100% opensource in Scala if possible.
 
   P.s:I did 2 years of Computer Science C++ and 2 years of Civil
   Engineering over 12 years ago both unfinished.
 



-- 
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Scala Loudmouth

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[Lift] Re: Thoughts on file streaming

2009-07-01 Thread Viktor Klang
On Tue, Jun 30, 2009 at 11:32 PM, David Pollak 
feeder.of.the.be...@gmail.com wrote:



 On Tue, Jun 30, 2009 at 2:22 PM, Viktor Klang viktor.kl...@gmail.comwrote:

 Create a tmp-file, store the localpath in S.param and register a delete on
 request done

 will be more streamlined than potentially monkeypatching it in
   Thoughts?


 Huge hack


Yes, and I apologize for suggesting it, it was inappropriate.

As we all know, the problem is that if you want to have access to the _full_
current state of the client (S) at the time of parsing the request (the
parsing of the file likely not the last item in the request) in order to be
able to process the file in a stream, unless some other solution is found,
the stream parsing of the file has to rely on not having current client side
state (S) available.

Now, I've made such solutions in the past, and the impression I've had from
API users have been that they actually expected client state to be available
at file parse time.

So in order to solve this you'd have to either guarantee that the file(s)
present in the multipart request is always located _after_ any and all other
form fields/parameters and the issue the callback at the time of each file
item being encountered (at the time of calling openStream())

Also, so far in the thread different behaviors of file uploads are
mentioned:

1) Process one or many files in a streaming fashion
2) Multiple file upload (store on server and process when user says he's
done)

As we've all said in this thread: The problem is not trivial to solve in a
satisfactory way, but I think we all can agree that you, David, will most
likely be able to solve it, as usual, very cleanly.

One possible solution that I can imagine is to have a multiple request
solution:

On the client, before every file upload, send the current client state as a
separate request and wait for a 200/OK before sending a request containing
one or more files. This way you can rely on the client state being fresh
when processing the files, and lift would invoke the input stream processor
associated with the file field in question.






 -- Viktor

 On Jun 30, 2009 11:08 PM, Derek Chen-Becker dchenbec...@gmail.com
 wrote:

 Well, as usual something that seemed simple at first glance is now looking
 somewhat complex. I'm thinking of reworking the fileUpload handling to allow
 a user to register either a (String, String, Array[Byte]) = Any or (String,
 String, InputStream) = Any function, which would then be executed during
 request processing. The issue is that form field processing (ParamHolders)
 takes place in Req, before LiftSession has been set up, and the act of
 parsing the request for form data, particularly for large upload streams
 (the target of these changes) precludes holding on to any data for later
 processing (the servlet container cannot be expected to hold the entire
 request in memory). On the other hand, users should reasonably expect that
 their form handling functions are stateful, so I'm trying to think of some
 way to meet in the middle on form processing. Ideas?

 Derek







 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Git some: http://github.com/dpp


 



-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: Thoughts on file streaming

2009-06-30 Thread Viktor Klang
Create a tmp-file, store the localpath in S.param and register a delete on
request done

will be more streamlined than potentially monkeypatching it in
  Thoughts?
-- Viktor

On Jun 30, 2009 11:08 PM, Derek Chen-Becker dchenbec...@gmail.com wrote:

Well, as usual something that seemed simple at first glance is now looking
somewhat complex. I'm thinking of reworking the fileUpload handling to allow
a user to register either a (String, String, Array[Byte]) = Any or (String,
String, InputStream) = Any function, which would then be executed during
request processing. The issue is that form field processing (ParamHolders)
takes place in Req, before LiftSession has been set up, and the act of
parsing the request for form data, particularly for large upload streams
(the target of these changes) precludes holding on to any data for later
processing (the servlet container cannot be expected to hold the entire
request in memory). On the other hand, users should reasonably expect that
their form handling functions are stateful, so I'm trying to think of some
way to meet in the middle on form processing. Ideas?

Derek


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[Lift] Re: [scala] preso on monadic design patterns for the web

2009-06-29 Thread Viktor Klang
Best presentation I've seen so far this year.
Filled in the gaps I got from reading the PDF perfectly.

Thanks for enriching my mind!

On Mon, Jun 29, 2009 at 1:05 AM, Meredith Gregory
lgreg.mered...@gmail.comwrote:

 All,

 The talk i recently gave on this topic is now available 
 onlinehttp://www.vimeo.com/5318303
 .

 Best wishes,

 --greg

 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com




-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: [scala] preso on monadic design patterns for the web

2009-06-29 Thread Viktor Klang
On Mon, Jun 29, 2009 at 2:48 PM, Christos KK Loverdos lover...@gmail.comwrote:

 This is one of the presentations after (or during) which one may easily
 wonder What was (is) he talking about? and then wake up 20 years later and
 recall that some guy Greg Meredith already did that.


I still have yet to experience the moment where the shape of the paradoxical
combinator suddenly unravels to me :)



 So pay attention everyone! At least, let those stuff stack at the back of
 your head. You never know...

 Greg is peaking...

 Christos

 On Jun 29, 2009, at 2:05 AM, Meredith Gregory wrote:

 All,

 The talk i recently gave on this topic is now available 
 onlinehttp://www.vimeo.com/5318303
 .

 Best wishes,

 --greg

 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com


 --
  __~O
 -\ ,   Christos KK Loverdos
 (*)/ (*)  http://ckkloverdos.com








-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: scala-tools.org down

2009-06-29 Thread Viktor Klang
C'est sabotage?

On Mon, Jun 29, 2009 at 5:58 PM, David Pollak feeder.of.the.be...@gmail.com
 wrote:

 The answer from CalPop:

 I just checked the cable and the clip on the RJ45 is missing, I slightly
 touched the cable and it came loose again. It could be that another
 colocated customer was working in that area during the time the server went
 down.



 On Mon, Jun 29, 2009 at 7:08 AM, Derek Chen-Becker 
 dchenbec...@gmail.comwrote:

 I smell a conspiracy!

 On Mon, Jun 29, 2009 at 7:54 AM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:



 On Mon, Jun 29, 2009 at 6:39 AM, Jeremy Day jeremy@gmail.comwrote:

 David,

 On Mon, Jun 29, 2009 at 8:28 AM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:

 The good news is that I've got pingdom monitoring the machine.  The bad
 news is that I was out of cell phone range so I didn't get the alerts.


 What?  You're not allowed to relax!


 No, I'm not.  Last family vacation, scala-tools.org was DoSed.  This
 family vacation, the network connection to the machine got hosed.  Sigh.






 Jeremy






 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Git some: http://github.com/dpp








 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Git some: http://github.com/dpp

 



-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: Hudson issue

2009-06-29 Thread Viktor Klang
ulimit -n

http://stackoverflow.com/questions/114914/how-do-you-fix-too-many-open-files-problem-in-hudson



On Mon, Jun 29, 2009 at 11:15 PM, Derek Chen-Becker
dchenbec...@gmail.comwrote:

 Hudson barfed just now complaining about too many open files:

 Caused by: java.io.IOException: Cannot run program git (in directory
 /home/scalatools/hudson/.hud
 son/jobs/Lift/workspace): java.io.IOException: error=24, Too many open
 files

 I've restarted Hudson and it appears to be working now. I'm going to
 research this to see if it's a Hudson bug or possibly and issue with our
 machine config, so I was wondering if anyone has seen something like this
 before?

 Thanks,

 Derek

 



-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: Anyone working on the flot widget?

2009-06-26 Thread Viktor Klang
What's the type of temperature and what's the signature of the toDouble
method on it?

On Fri, Jun 26, 2009 at 11:09 AM, Peter Robinett pe...@bubblefoundry.comwrote:


 Thanks, Jeppe, that's what I was missing.

 To continue to hijack this thread with my own questions, I'm having a
 problem creating the data List[(Double, Double)] that FlotSerie wants.
 I have:
 override val data = MyModel.findAll(By(MyMode.id, myId), OrderBy
 (MyModel.datetime, Ascending)).map(m = (m.datetime.getTime.toDouble,
 m.temperature.toDouble))

 This gives me an error saying I'm missing arguments for toDouble in
 class MappedDouble (this is MyModel.temperature) and suggests treating
 it as a partially applied function. I'm not sure I want to do that
 but, trying it anyway (with m.temperature.toDouble _), I got an new
 error saying that List[(Double, (Any) = Double)] is an incompatible
 type.

 Any suggestions? I'm sure it's a REALLY simple fix.

 Thanks,
 Peter

 On Jun 26, 12:53 am, Jeppe Nejsum Madsen je...@ingolfs.dk wrote:
  On 26 Jun 2009, Peter Robinett wrote:
 
   Hi flot users,
 
   I am trying to copy the basic Flot example into my own code. I have no
   compile errors but the graph isn't rendered because /classpath/flot/
   jquery.flot.js isn't found. Since I get no errors with the flot
   methods in my snippet, I assume lift-widgets is loading correctly. Am
   I missing something?
 
  Did you put a call to net.liftweb.widgets.flot.Flot.init in Boot?
 
  This is needed to make the javascript resources available...
 
  /Jeppe

 



-- 
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Scala Loudmouth

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[Lift] Re: Warnings for missing binds?

2009-06-26 Thread Viktor Klang
Nice proposal! I'm noodling on adding a bit of framework to widgets, I got a
bit frustrated with a widget today...  Aöso, would be cool to make them OSGI
components to be able to add them without rebooting.
But now I'm babbling again

-- Viktor

On Jun 26, 2009 7:11 PM, Derek Chen-Becker dchenbec...@gmail.com wrote:

I meant that it could warn you if your bind tag looks like:

lift:bind name=content /

But you made a mistake with your surround tag:

lift:surround at=contet / (notice the misspelling)

I was thinking that you would get two warnings:


   1. One that nothing had matched the content name
   2. One that there was an unused contet surround

Derek

On Fri, Jun 26, 2009 at 9:52 AM, marius d. marius.dan...@gmail.com wrote:
   That would be ni...

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[Lift] Re: scalajpa - while accessing two distincts databases, the second access is made with a connection to the first database

2009-06-18 Thread Viktor Klang
:38 PM, Meredith Gregory 
 lgreg.mered...@gmail.com wrote:

 It takes some serious training to think compositionally.


 No doubt it is extremely tough to think compositionally, and it's all
 too easy to fall back on non-compositional ways of thinking.  In a 
 similar
 vein it's all too easy to fall into procedural patterns when learning or
 working with functional programming in a multi-paradigm language.  But 
 what
 are good ways for programmers to learn to think compositionally and, more
 importantly, practice?  Do you know of any books or online references 
 that
 might help make the transition for anyone who is interested?

 Jeremy





 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com








 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com








 --
 L.G. Meredith
 Managing Partner
 Biosimilarity LLC
 1219 NW 83rd St
 Seattle, WA 98117

 +1 206.650.3740

 http://biosimilarity.blogspot.com

 



-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: scalajpa - while accessing two distincts databases, the second access is made with a connection to the first database

2009-06-18 Thread Viktor Klang
I just want to say that it's educating and awesome (in the true sense of the
word) to have you on this list, enriching us with alot of good ideas,
theories and concepts.

2009/6/18 Meredith Gregory lgreg.mered...@gmail.com

 Viktor,

 My co-routine yields back to yours!

 Hey, it's like Garrison Keillor's Tales from Lake 
 Wobegonhttp://en.wikipedia.org/wiki/Lake_Wobegon:
 where *all* of the children are above average. If you think about it, that
 just keeps *lift*ing the children higher and higher and higher...

 Speaking of which, i think David's goat rodeo ideas fit pretty well with
 some ideas i've been working on regarding a uniform approach to data. This
 takes the whole LINQ idea up a couple of notches. To see what i mean, take a
 look at the slides for a recent talk i 
 gavehttp://svn.biosimilarity.com/src/open/talks/MonadicDesignPatternsForTheWeb.pdf.
 Comments (peanuts, rotten tomatoes...) would be most welcome.

 Best wishes,

 --greg

 P.S. Oliver's sincere question compelled me to respond with my own best
 understanding of the topic.

 2009/6/18 Viktor Klang viktor.kl...@gmail.com

 I yield to your superiority.
 Seriously.


 2009/6/18 Meredith Gregory lgreg.mered...@gmail.com

 Oliver,

 Objects and monads are really not the same. At it's heart the concept of
 monad is an appropriately parametric notion of composition. If you have any
 experience with abstract algebra, you might recognize that the notion of
 a group http://en.wikipedia.org/wiki/Symmetry_group is an
 appropriately parametric notion of symmetry. Groups give an exceptionally
 well abstracted account of symmetry. Monads give an exceptionally well
 abstracted notion of composition. This is a lot easier to see in the
 Category Theoretic presentation.

 A monad http://en.wikipedia.org/wiki/Monad_%28category_theory%29 is
 presented by three pieces of data:

- An endofunctor http://en.wikipedia.org/wiki/Functor M : C - C
(intuitively, think of M as a parametric type constructor and C as the
universe of types and maps)
- A natural 
 transformationhttp://en.wikipedia.org/wiki/Natural_transformationunit: Id 
 - M -- this is a higher-order critter: it takes maps to maps; but
i'll give you a metaphor in just a moment.
- A natural transformation mult: M^2 - M

 One picture you can have in your mind is M is a kind of box factory.
 Then unit says how you can put things into a box, and mult says how you can
 flatten nested boxes into an ordinary box (this is the origins of flatMap in
 Scala's presentation). Another way of understanding this is that M is a kind
 of higher-order compositor, i.e. a way of combining things just like
 multiplication, as in a*b, is a way of combining things. Then the unit is
 the analog of having a unit for your multiplication and mult is the analog
 of an associativity law ( a*(b*c) = (a*b)*c ). These line up with the box
 analogy more easily if you write things with prefix notation instead of
 infix notation.

- Let's write {*| a, b |*} instead of a*b. The reason we adopt this
more verbose notation is that we can note the different kind of boxes 
 with
the 'color' of the braces. M-colored braces, {M| a, b |M}, are associated
with an M-box.
- Then unit( a ) = {M| a |M}, it puts a in an M-box. This has an
alternate presentation of the form {M| |M}.{M| a |M} = {M| a |M}. i 
 mention
it to point out the analogy with the binary operation _*_, but it muddies
the water a little with begging the question about the _._. So, i will 
 just
leave it -- without explanation -- for you to explore.
- And mult( {M| {M| a11, ..., a1J |M} ... {M| aI1, ... aIJ' |M} |M} )
= {M| a11, ..., aIJ' |M}. It tells you how to canonically flatten 
 M-boxes.
This functions as an association because if boxes canonically flatten, 
 then
{M| a, {M| b, c |M} |M} = {M| a, b, c |M} = {M| {M| a, b |M}, c |M}.


 The apparent lexical connection between this way of thinking about things
 and XML *is not accidental*. Monads can be viewed as colored braces, aka
 matched tags. Monads are a semantical creature that presents syntactically
 like XML.

 This way of thinking about things is really different from objects. To be
 sure, there are notions of objects that are universal and so can be made to
 fit or encode just about anything; but, that doesn't mean the encodings are
 nice, or scalable or maintainable. You have only to to look at something
 like LINQ -- which is really just a presentation of monads -- to see just
 how flexible and yet compact the monadic way of structuring composition is.
 Specifically, both set-comprehension notation and SELECT-FROM-WHERE, when
 interpreted polymorphically, provide a natural representation of the monad.

- { pattern | t1 - generator1, ..., tn - generatorN, constraint1,
..., constraintK }
- SELECT pattern FROM generator WHERE constraint

 Those to pieces of computational machinery have very simple, and natural
 mappings

[Lift] BBCode2XHTML

2009-06-18 Thread Viktor Klang
Hi guys!

I'm in dire need of an XSS-safe and generally harmless way of allowing
end-users to add some markup to texts.
In the spirit of re-use and lack of time, I wonder if any of you have any
libraries to recommend that can transform a String maybe containing BBCode
to the same string but with xhtml compliant markup.

Googled it a bit and saw KefirBB http://sourceforge.net/projects/kefir-bb/and
JavaBBCode https://javabbcode.dev.java.net/ but none of them seem lean
enough (I mean, how much code does it need to transform a String??)

So what's it gonna be guys, is there a saviour out there or will I need to
pull out the Scala REPL?


Cheers!
-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: Neo4J

2009-06-18 Thread Viktor Klang

I think I was the first external committer to Neo4j.It is a really  
interesting product, and I had quite a few nice use-cases for it, but  
unfortunately their adoption of AfferoGPLv3 prohibited me from using it.

Viktor,
Lift
Scala

18 jun 2009 kl. 17.39 Jeremy Day jeremy@gmail.com skrev:

 Good morning,

 Has anyone used a graph database, such as Neo4J, as their back end  
 in a Lift project?

 Jeremy

 

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[Lift] Re: Neo4J

2009-06-18 Thread Viktor Klang
Last time I checked they had commercial licenses for sale (contact for  
pricing details)

Viktor,
Rogue Software Architect

18 jun 2009 kl. 22.10 Jeremy Day jeremy@gmail.com skrev:

 Viktor,

 Interesting.  I'm starting the very initial development on a little  
 commercial product and I'm thinking about using Neo4J as the back  
 end.  I'll need to eyeball their license again to make sure that  
 it's compatible with what I want to do.

 Jeremy

 On Thu, Jun 18, 2009 at 2:53 PM, Viktor Klang  
 viktor.kl...@gmail.com wrote:

 I think I was the first external committer to Neo4j.It is a really
 interesting product, and I had quite a few nice use-cases for it, but
 unfortunately their adoption of AfferoGPLv3 prohibited me from using  
 it.

 Viktor,
 Lift
 Scala

 18 jun 2009 kl. 17.39 Jeremy Day jeremy@gmail.com skrev:

  Good morning,
 
  Has anyone used a graph database, such as Neo4J, as their back end
  in a Lift project?
 
  Jeremy
 
  




 

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[Lift] Re: scalajpa - while accessing two distincts databases, the second access is made with a connection to the first database

2009-06-17 Thread Viktor Klang
Read this and join me in having your brains implode:

http://www.mail-archive.com/everything-l...@googlegroups.com/msg05959.html

On Wed, Jun 17, 2009 at 11:07 AM, TSP tim.pig...@optrak.co.uk wrote:


   In my own defense ...  failed to realize the problem that would arise
 from defining the EM factory as a singleton

 Are you being honest here Derek? Was not the real problem that you
 failed to truly embrace the shape of the paradoxical combinator?


 



-- 
Viktor Klang
Scala Loudmouth

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[Lift] Re: Hiring Lift Developers

2009-06-16 Thread Viktor Klang
Dang! No Boston, Sweden :(

On Tue, Jun 16, 2009 at 3:02 AM, David LaPalomento
dlapalome...@novell.comwrote:


 As much as I'd love an excuse to fly out to London (or Sydney), you're
 right, it probably is a bit too much of a stretch :)

 On Jun 15, 6:51 pm, KWright kev.lee.wri...@googlemail.com wrote:
  I suspect that London UK would probably be an exception too far!
 
  On 15 June, 23:45, David LaPalomento dlapalome...@novell.com wrote:
 
   Good point, sorry!  Most of the team is located in the Boston area,
   but we'd probably be willing to make exceptions.
 
   On Jun 15, 4:14 pm, KWright kev.lee.wri...@googlemail.com wrote:
 
You forgot to mention where you are in the world, it might be useful
to know... :P
 
On 15 June, 18:32, David LaPalomento dlapalome...@novell.com
wrote:
 
 Hi all,
 My team has recently started a project based around Lift and we're
 looking at bringing on some passionate, full-time developers to make that
 happen.  It's a pretty ambitious effort and we expect to be pushing the
 technology envelope in real-time communication (CometActors have already
 been a huge help here) and user experience for web applications.  If you
 think you might be interested, drop me an email and I'd be glad to go into
 greater detail about the project.  Also, apologies in advance if I shouldn't
 be posting this sort of thing to the list.
 
 Regards,
 David

 



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Scala Loudmouth

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[Lift] Re: Great pictures from the Scala Lift Off

2009-06-09 Thread Viktor Klang
On Tue, Jun 9, 2009 at 1:01 AM, David Pollak
feeder.of.the.be...@gmail.comwrote:



 On Mon, Jun 8, 2009 at 12:37 PM, Viktor Klang viktor.kl...@gmail.comwrote:



 On Mon, Jun 8, 2009 at 8:09 PM, Timothy Perrett 
 timo...@getintheloop.euwrote:

 w00t!!

 Marius, Viktor, Heiko... You think you guys will be able to make the trip
 to EPFL? I'll be there with bells on!


 I'll check the budget! ;)


 The beer budget or the travel budget?


Like there was ever a shadow of a doubt that the beer budget was
insufficient... ;)









 Cheers, Tim

 Sent from my iPhone

 On 8 Jun 2009, at 18:43, David Pollak feeder.of.the.be...@gmail.com
 wrote:



 On Mon, Jun 8, 2009 at 10:29 AM, Derek Chen-Becker dchenbec...@gmail.com
 dchenbec...@gmail.com wrote:

 I'm still pushing for a Scala on Skis conference out here in Colorado
 ;)


 It's looking like Scala on Skis will be held in Lausanne, Switzerland in
 Spring 2010.  We'll also have a Scala Lift Off in the Washington, DC area in
 October 2009.

 Maybe we'll have a Denver-based conference in 2010.




 Derek


 On Mon, Jun 8, 2009 at 11:14 AM, Timothy Perrett 
 timo...@getintheloop.eu wrote:


 Sweet! So jeleous of you guys cant wait to have a EMEA scala geek
 meet! Then myself, Viktor and Heiko can really hit the beers ;-)

 Cheers, Tim

 On Jun 8, 5:53 pm, David Pollak feeder.of.the.be...@gmail.com wrote:
  Folks,
  Ilya not only writes great IDE plugins, he takes good 
  pictures:http://picasaweb.google.com/ilyas239/Scalaliftoff09#
 http://picasaweb.google.com/ilyas239/Scalaliftoff09#
 
  Thanks,
 
  David
 
  --
  Lift, the simply functional web frameworkhttp://lifthttp://liftweb.net
 web.net
  Beginning Scalahttp:// http://www.apress.com/book/view/1430219890
 www.apress.com/book/view/1430219890
  Follow me: http://twitter.com/dpphttp://twitter.com/dpp
  Git some: http://github.com/dpphttp://github.com/dpp







 --
 Lift, the simply functional web framework http://liftweb.net
 http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpphttp://twitter.com/dpp
 Git some: http://github.com/dpphttp://github.com/dpp







 --
 Viktor Klang
 Rockstar Developer






 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Git some: http://github.com/dpp

 



-- 
Viktor Klang
Rockstar Developer

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Re: [scala] Re: [Lift] Programming in Scala #5, Lift Book #8, Beginning Scala #9

2009-06-09 Thread Viktor Klang
On Tue, Jun 9, 2009 at 9:43 AM, Heiko Seeberger 
heiko.seeber...@googlemail.com wrote:

 2009/6/9 Viktor Klang viktor.kl...@gmail.com


 Awesome idea.

 Would be great to establish some kind of curriculum with joint teaching
 material to be able to offer courses worldwide.


 +1

 We have been doing something similar with Eclipse =
 www.eclipse-training.net
 And very recently we also started with courses on Scala and Lift, still
 flagged Eclipse Training Alliance. But we would like to go for some kind of
 world wide Scala Training network. What do you guys think? Interested?


Very!



 Heiko


 



-- 
Viktor Klang
Rockstar Developer

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[Lift] Re: JTA Transaction Monad - Early Access Program

2009-06-09 Thread Viktor Klang
Starkt jobbat Jonas!

I'll have a look at it asap :)

On Tue, Jun 9, 2009 at 4:27 PM, Jonas Bonér jbo...@gmail.com wrote:


 2009/6/9 David Pollak feeder.of.the.be...@gmail.com:
  Sweet looking stuff!

 Thanks.

 
  On Tue, Jun 9, 2009 at 6:18 AM, Jonas Bonér jbo...@gmail.com wrote:
 
  Hey guys.
 
  I have hacked together an early draft of the JTA transaction stuff.
 
  I have wrapped it up in a monad. Here  are some examples of usage:
 
   for {
ctx - TransactionContext.Required
entity - updatedEntities
if !ctx.isRollbackOnly
   } {
// transactional stuff
ctx.getEntityManager.merge(entity)
   }
 
  val users = for {
ctx - TransactionContext.Required
name - userNames
   } yield {
// transactional stuff
val query = ctx.getEntityManager.createNamedQuery(findUserByName)
query.setParameter(userName, name)
query.getSingleResult
   }
 
  If you don't like the monadic approach you can just use the high-order
  functions:
 
  TransactionContext.withTxRequired {
 ... // REQUIRED semantics
 
   TransactionContext.withTxRequiresNew {
 ... // REQUIRES_NEW semantics
   }
  }
 
  I have implemented the same semantics as used in the EJB spec.
  Required, RequiresNew, Mandatory, Supports, Never. All these are
  monadic objects in the TransactionContext object.
  I don't have a webapp to try this out, so I would be happy to get all
  kinds of feedback, but API wise and bug reports or fixes.
 
  This API is hooked into Derek's Scala-JPA stuff. I had my own impl of
  this but replaced it with Derek's work.
 
  Derek,
  please go through the integration to see if I have done it correctly,
  and where things code be improved.
 
  All committers,
  feel free to hack and change this code anyway you want.
 
  The code is in a branch (wip-jta-jonas), you can find it here:
 
 
 http://github.com/dpp/liftweb/tree/3783b9e2200cc57dd72baa1bd8cabdb1365ee923/lift-jta
 
  Check the ScalaDoc (or the source) for the documentation on usage,
  semantics etc.
  Also see the README for configuration in persistence.xml etc.
 
  Currently it is hard-coded to use the Atomikos Transaction library and
  Hibernate JPA, that would have to be configurable + some other options
  as well. See the TODOs in the code.
 
  As I said, this needs feedback and testing. Thanks.
 
  --
  Jonas Bonér
 
  twitter: @jboner
  blog:http://jonasboner.com
  work:   http://crisp.se
  work:   http://scalablesolutions.se
  code:   http://github.com/jboner
 
 
 
 
 
  --
  Lift, the simply functional web framework http://liftweb.net
  Beginning Scala http://www.apress.com/book/view/1430219890
  Follow me: http://twitter.com/dpp
  Git some: http://github.com/dpp
 
  
 



 --
 Jonas Bonér

 twitter: @jboner
 blog:http://jonasboner.com
 work:   http://crisp.se
 work:   http://scalablesolutions.se
 code:   http://github.com/jboner

 



-- 
Viktor Klang
Rockstar Developer

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[Lift] Re: Programming in Scala #5, Lift Book #8, Beginning Scala #9

2009-06-08 Thread Viktor Klang
Congrats guys!

You've really deserved it! :)

On Mon, Jun 8, 2009 at 4:34 PM, TylerWeir tyler.w...@gmail.com wrote:


 http://www.theserverside.com/news/thread.tss?thread_id=54862

 Quote:
 Here are the top 10 selling books at the JavaOne Bookstore. Are these
 a trend? You decide.

 1. JavaFX: Building Rich Internet Applications - Addison Wesley ISBN:
 013701287X
 2. Essential JavaFX - PTR (out June 11, 2009) ISBN: 0137042795
 3. Effective Java 2nd ed. - PTR ISBN: 0321356683
 4. Java Puzzlers - Addison Wesley ISBN: 032133678X
 5. Programming in Scala - Artima ISBN: 0981531601
 6. Java Concurrency in Practice - Addison Wesley ISBN:0321349601
 7. Beginning Java EE 5: From Novice to Professional - Apress ISBN:
 1590594703
 8. The Definitive Guide to Lift - Apress ISBN: 1430224215
 9. Beginning Scala - Apress ISBN: 1430219890
 10. OpenSolaris Bible - Wiley ISBN: 0470385480

 Another chance for me to thank everyone involved.
 - dpp for building the framework and being more helpful than any
 person should be expected to be.
 - Derek and Marius for being excellent co-authors and about 8 times
 smarter than me.

 Huzza!
 



-- 
Viktor Klang
Rockstar Developer

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[Lift] Re: Great pictures from the Scala Lift Off

2009-06-08 Thread Viktor Klang
On Mon, Jun 8, 2009 at 8:09 PM, Timothy Perrett timo...@getintheloop.euwrote:

 w00t!!

 Marius, Viktor, Heiko... You think you guys will be able to make the trip
 to EPFL? I'll be there with bells on!


I'll check the budget! ;)



 Cheers, Tim

 Sent from my iPhone

 On 8 Jun 2009, at 18:43, David Pollak feeder.of.the.be...@gmail.com
 wrote:



 On Mon, Jun 8, 2009 at 10:29 AM, Derek Chen-Becker dchenbec...@gmail.com
 dchenbec...@gmail.com wrote:

 I'm still pushing for a Scala on Skis conference out here in Colorado ;)


 It's looking like Scala on Skis will be held in Lausanne, Switzerland in
 Spring 2010.  We'll also have a Scala Lift Off in the Washington, DC area in
 October 2009.

 Maybe we'll have a Denver-based conference in 2010.




 Derek


 On Mon, Jun 8, 2009 at 11:14 AM, Timothy Perrett timo...@getintheloop.eu
  wrote:


 Sweet! So jeleous of you guys cant wait to have a EMEA scala geek
 meet! Then myself, Viktor and Heiko can really hit the beers ;-)

 Cheers, Tim

 On Jun 8, 5:53 pm, David Pollak feeder.of.the.be...@gmail.com wrote:
  Folks,
  Ilya not only writes great IDE plugins, he takes good 
  pictures:http://picasaweb.google.com/ilyas239/Scalaliftoff09#
 http://picasaweb.google.com/ilyas239/Scalaliftoff09#
 
  Thanks,
 
  David
 
  --
  Lift, the simply functional web frameworkhttp://lifthttp://liftweb.net
 web.net
  Beginning Scalahttp:// http://www.apress.com/book/view/1430219890
 www.apress.com/book/view/1430219890
  Follow me: http://twitter.com/dpphttp://twitter.com/dpp
  Git some: http://github.com/dpphttp://github.com/dpp







 --
 Lift, the simply functional web framework http://liftweb.net
 http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpphttp://twitter.com/dpp
 Git some: http://github.com/dpphttp://github.com/dpp



 



-- 
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Rockstar Developer

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[Lift] Re: lift views

2009-06-01 Thread Viktor Klang
On Sun, May 31, 2009 at 7:05 PM, Timothy Perrett timo...@getintheloop.euwrote:



 Now you mention it though, it might well work quite nicely. Talk to me
 Viktor - what are you thinking?


Just create an XSLT template to convert the lift templates to a a more
readable form?

Should be possible?




 Cheers, Tim

 On 31/05/2009 14:10, Viktor Klang viktor.kl...@gmail.com wrote:

  Couldn't they just define an XSLT template to view the lift templates
 with?



 



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[Lift] Re: lift views

2009-06-01 Thread Viktor Klang
On Mon, Jun 1, 2009 at 11:05 AM, Timothy Perrett timo...@getintheloop.euwrote:



  Just create an XSLT template to convert the lift templates to a a more
  readable form?
 
  Should be possible?

 Your thinking just have an XSLT just for preview purposes? That would
 be pretty sweet.


Yes, my point exactly! :)




 Perhaps we can do something with this:

 http://mojo.codehaus.org/xslt-maven-plugin/transform-mojo.html

 Cheers, Tim
 



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[Lift] Re: lift views

2009-06-01 Thread Viktor Klang
On Mon, Jun 1, 2009 at 12:15 PM, Timothy Perrett timo...@getintheloop.euwrote:

 Don't worry I'm just being slow as per normal viktor!

 Do you want to try setting this up or shall I?


Make a draft and we'll help eachother out :)



 Cheers, Tim

 Sent from my iPhone

 On 1 Jun 2009, at 10:52, Viktor Klang viktor.kl...@gmail.com wrote:



 On Mon, Jun 1, 2009 at 11:05 AM, Timothy Perrett 
 timo...@getintheloop.euwrote:



  Just create an XSLT template to convert the lift templates to a a more
  readable form?
 
  Should be possible?

 Your thinking just have an XSLT just for preview purposes? That would
 be pretty sweet.


 Yes, my point exactly! :)




 Perhaps we can do something with this:

  http://mojo.codehaus.org/xslt-maven-plugin/transform-mojo.html
 http://mojo.codehaus.org/xslt-maven-plugin/transform-mojo.html

 Cheers, Tim




 --
 Viktor Klang
 Rockstar Developer



 



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[Lift] Re: lift views

2009-06-01 Thread Viktor Klang
On Mon, Jun 1, 2009 at 1:53 PM, Timothy Perrett timo...@getintheloop.euwrote:



  Make a draft and we'll help eachother out :)

 Ok will do - perhaps try mocking this up later in the week. Any
 thoughts in and around this otherwise? Must haves vs nice to have?


Hmmm, perhaps we should start with defining the needs.

The OP could perhaps elaborate a bit more on how his needs are?




 Cheers, Tim
 



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[Lift] Re: lift views

2009-05-31 Thread Viktor Klang
Couldn't they just define an XSLT template to view the lift templates with?

On Sun, May 31, 2009 at 2:24 PM, Timothy Perrett timo...@getintheloop.euwrote:


 BTW, if anyone wanted to create such a thing (perhaps for dreamweaver
 or whatever other tool designers are using these days) then that would
 be most welcome from the community at large!

 Cheers, Tim

 On May 31, 10:54 am, Timothy Perrett timo...@getintheloop.eu wrote:
  It would indeed complain about prefixes.
 
  Ideally, for a designer workflow we need some IDE plugin that can
  understand lifts templating mech and import the right XML file. That
  would be the best solution for a design led workflow using lift as the
  backend.
 
  Cheers
 
  Tim
 
  Sent from my iPhone
 
  On 31 May 2009, at 09:54, marius d. marius.dan...@gmail.com wrote:
 
 
 
 
 
   Agreed with Tim. I also don't see any value. And the point of viewing
   the template statically is not an argument to me because the template
   is still incomplete for a proper rendering, xhtml browser would
   probably complain about prefixes it doesn't know about etc.
 
   Br's,
   Marius
 
   On May 31, 5:32 am, Xavi Ramirez xavi@gmail.com wrote:
   The value is that Yoryos version is a valid HTML page and can be
   easily viewed without having lift/jetty running.  This could be handy
   for designs, for example.
 
   I'm personally not 100% sold (I hate boilerplate), but it's an
   interesting idea.
 
   -Xavi
 
   On Sat, May 30, 2009 at 7:44 PM, Timothy Perrett
 
   timo...@getintheloop.eu wrote:
 
   There really is no benifit in this IMO - the only difference is that
   you have more redundant code?
 
   You can set the head from any page file like so:
 
   lift:surround with=default at=content
head
  titlemy lovely title/title
/head
h2Welcome to your project!/h2
plift:helloWorld.howdy //p
   /lift:surround
 
   Lift automatically consolidates the head elements into a single one
   before presenting the resulting html output to the browser. Other
   than
   that, your proposistion adds no value right? Its still well formed
   xml
   with a single node, it just happens to be that your is html.
 
   Do note however, that if you really wanted to use your way, then
   lift
   would not get in your way
 
   Cheers, Tim
 
   On May 30, 10:57 pm, valotas valo...@gmail.com wrote:
   Hi all!
   Just a proposal: wouldn't be better to have the views look like
   more
   an html page. I mean for the basic project created, instead of
   having
   an index.html look like
 
   lift:surround with=default2 at=content
 h2Welcome to your project!/h2
 plift:helloWorld.howdy //p
   /lift:surround
 
   have something like:
 
   html
   lift:surround with=default2 at=content
   head
 titleA better title than the one in default.html/title
   /head
   body
 h2Welcome to your project!/h2
 plift:helloWorld.howdy //p
   /body
   /lift:surround
   /html
 
   Yes we have more boilerplate code but with that way it would be
   much
   more easier the edditing of the page.
 
   Yoryos
 



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[Lift] Re: Lift and interoperability

2009-05-17 Thread Viktor Klang
Hello guys,

if you could scribble together a scenario, then I might be able to help you
out.

Cheers,

On Sun, May 17, 2009 at 10:53 PM, johnnie jsm2p...@googlemail.com wrote:




 On May 17, 4:33 am, rintcius rintc...@gmail.com wrote:
  Interesting discussion! I think I see a bit where Glenn is coming
  from. To me it's about *ease* of interoperability.
  For enterprise architectures the most important question is: to what
  extent is Lift helping me to build a **composable** software system.
 ...
  My guess is that this is all possible in Lift but I haven't seen
  anything in the code or docs that facilitates this.
  Maybe I have overlooked something but what I have seen so far is based
  on an all or nothing approach

 Is it just a matter of documentation?  If so, I might be able to help
 with
 that.  When I am really interested in something, people praise me
 very
 highly for being explicit, easy to understand, and forceful.  I have
 the
 same feelings as Glen and Rintcius although I have great faith in
 everything else that has been said.  If you gurus want to expand your
 influence to the great unwashed masses, please see if
 you can determine a time when you are willing to explain everything
 to me at your location.

 I am a genius, a Ph.D. and many other good things although I have a
 learning disability, ADD, and other gifts which hold me closely to
 the
 masses.  I can't see this interoperability.  But if you will take the
 time to
 explain it to me as soon as I can come to visit you in person, I will
 write
 it up so that others can understand  it better/differently than your
 current documentation.
 Sincerely, Johnnie

 



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[Lift] Re: Jetty Session problem

2009-05-14 Thread Viktor Klang
I've seen this happen to other session based java web frameworks,  
oftentimes it's been caused by improperly configured proxies or  
terminal servers.

Does this help you?

Viktor,
Rogue Software Architect

14 maj 2009 kl. 17.43 David Pollak feeder.of.the.be...@gmail.com  
skrev:



 On Thu, May 14, 2009 at 4:42 AM, sailormoo...@gmail.com 
 sailormoo...@gmail.com 
  wrote:

 Hi :

  The Jetty server just happened a weird bug, some ppl seems to get
 into another ppl's session,

 All session state in Lift is managed using JSESSIONID.  Session  
 management is a simple and solid mechanism.  I've never seen or  
 heard of mixing sessions.

 Can you be specific about the defect and the code in your  
 application where it's manifesting itself?


 as a logined user but it's another one's. I don't know why this would
 happen, anyone knows if there is a bug,
 or maybe some configuration should be made? Thanks.





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 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
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 Git some: http://github.com/dpp

 

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[Lift] Re: OSGi support for Lift

2009-05-12 Thread Viktor Klang
I feel I owe Heiko a beer.

On Tue, May 12, 2009 at 3:36 PM, David Pollak feeder.of.the.be...@gmail.com
 wrote:

 Very good stuff!
 Looking forward to playing with it today.

 Thanks for the hard work!

 On Tue, May 12, 2009 at 12:03 AM, Heiko Seeberger 
 heiko.seeber...@googlemail.com wrote:

 Hi Lift folks,

 Today I checked in the first little step towards OSGi support:

- Modules lift-util and lift-webkit are no longer plain vanilla JARs,
but built as OSGi bundles (OSGi metadata in META-INF/MANIFEST.MF)
- New module lift-osgi which offers (yet very limited) support for
Lift application bundles (to ones you write)
- New example module (under sites) examples-osgi with one (yet very
limited) examples-osgi-hello bundle

 The first thing I would like to ask you is to verify that the changes to
 the existing modules are free of side effects: Lift should work without OSGi
 just like before. As the changes to lift-util and lift-webkit are merely in
 the manifest, I am very confident, but just to be sure ...

 And for those of you interested in OSGi:
 Currently there is only support for resources (templates) contributed from
 Lift-powered bundles to a composite Lift application. Yet no snippets, no
 custom dispatch, etc. Please take a look at sites/examples-osgi/hello.
 Note the new manifest header Lift-Config in the POM (the value is yet
 without any meaning). This bundle contributes its resources under webappto a 
 composite Lift application. The actual work is done by
 lift-osgi which is an implementation of the extender pattern. In order to
 run the example, I suggest you use Pax 
 Runnerhttp://paxrunner.ops4j.org/space/Pax+Runnerwith the scala and web 
 profiles and the provided component configuration
 file at sites/examples-osgi/hello/hello.component. Else you will have to
 provision OSGi bundles for Scala, ScalaModules, Lift and all required
 dependencies (take a look into hello.component) by hand.

 Of course I would be very glad to get some reviews on my Scala code,
 because I guess there is still a long way of learning ahead ...

 Cheers
 Heiko
 --
 My blog: heikoseeberger.name
 Follow me: twitter.com/hseeberger
 OSGi on Scala: www.scalamodules.org
 Lift, the simply functional web framework: liftweb.net





 --
 Lift, the simply functional web framework http://liftweb.net
 Beginning Scala http://www.apress.com/book/view/1430219890
 Follow me: http://twitter.com/dpp
 Git some: http://github.com/dpp

 



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[Lift] Re: OSGi support for Lift

2009-05-12 Thread Viktor Klang
On Tue, May 12, 2009 at 3:59 PM, Timothy Perrett timo...@getintheloop.euwrote:


 If your buying Viktor ;-)

 Say, when we having a lift team beer night? Feels like were long overdue
 for something like that!


We really should!



 Cheers, Tim

 On 12/05/2009 14:50, Viktor Klang viktor.kl...@gmail.com wrote:

 I feel I owe Heiko a beer.

 On Tue, May 12, 2009 at 3:36 PM, David Pollak 
 feeder.of.the.be...@gmail.com wrote:

 Very good stuff!

 Looking forward to playing with it today.

 Thanks for the hard work!


 On Tue, May 12, 2009 at 12:03 AM, Heiko Seeberger 
 heiko.seeber...@googlemail.com wrote:

 Hi Lift folks,

 Today I checked in the first little step towards OSGi support:

- Modules lift-util and lift-webkit are no longer plain vanilla JARs,
but built as OSGi bundles (OSGi metadata in META-INF/MANIFEST.MF)
- New module lift-osgi which offers (yet very limited) support for Lift
application bundles (to ones you write)
- New example module (under sites) examples-osgi with one (yet very
limited) examples-osgi-hello bundle

 The first thing I would like to ask you is to verify that the changes to
 the existing modules are free of side effects: Lift should work without OSGi
 just like before. As the changes to lift-util and lift-webkit are merely in
 the manifest, I am very confident, but just to be sure ...

 And for those of you interested in OSGi:
 Currently there is only support for resources (templates) contributed from
 Lift-powered bundles to a composite Lift application. Yet no snippets, no
 custom dispatch, etc. Please take a look at sites/examples-osgi/hello. Note
 the new manifest header Lift-Config in the POM (the value is yet without any
 meaning). This bundle contributes its resources under webapp to a composite
 Lift application. The actual work is done by lift-osgi which is an
 implementation of the extender pattern. In order to run the example, I
 suggest you use Pax Runner http://paxrunner.ops4j.org/space/Pax+Runner
  with the scala and web profiles and the provided component configuration
 file at sites/examples-osgi/hello/hello.component. Else you will have to
 provision OSGi bundles for Scala, ScalaModules, Lift and all required
 dependencies (take a look into hello.component) by hand.

 Of course I would be very glad to get some reviews on my Scala code,
 because I guess there is still a long way of learning ahead ...

 Cheers
 Heiko


 



-- 
Viktor Klang
Senior Systems Analyst

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