[Lift] Re: Whitespace removal from XML
Also see trimProper in
http://lampsvn.epfl.ch/trac/scala/browser/scala/tags/R_2_7_7_final/src/library/scala/xml/Utility.scala?view=markup
--Bryan
On Mon, Nov 9, 2009 at 5:47 PM, harryh wrote:
>
> Answering my own question, I wrote this. I think it should do what I
> want:
>
> def compactXml(node: Node): Node = node match {
> case Elem(p, l, a, s, children @ _*) => Elem(p, l, a, s, children.map
> (compactXml(_)) :_*)
> case Text(data) => Text(data.trim)
> case x => x
> }
>
> -harryh
> >
>
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[Lift] Scala Lift Off East
I'm waiting for a ride to Union Station, so I thought I'd use this time to discuss some of the questions and concerns I heard about lift at the recent Scala Lift Off East. Personally, I did not attend any of the lift sessions, so I'm definitely leaving a lot out. I like lift and its community, so I want to make sure these points get mentioned. 1. There were a handful of lift sessions called, but no active committers at the unconference to go into depth about a given topic. That could be why most of the sessions were about using lift in particular environments, such as clustered and under GAE. 2. With the above said, much praise did go out to the lift community for their responsiveness to develop feature requests and fix bugs. 3. There was interest -- myself included -- to learn more about Record. 4. I heard a few discussions concerning the use of Sessions. They wanted to know how this impacted scalability. 5. Just an observation: I was surprised to learn that many people at the conference had never used maven before. 6. Users discussed that lift was very fast to develop in. One group there mentioned that they used lift to replace an existing PHP app. Another user held a session on how his company used lift to create its website in under 90 days. -- I hope I got that right. --Bryan Sent from my iPhone --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Don't shoot the non-XML messenger ...
Hi Aule,
> I am still looking to see if I over-looked somewhere on the web where
> there is a 1.0.2 Boot.scala
>
> 1) showing unambiguously how to flip the default Content-Type
> 2) and having, in fact, the intended effect
>
> as I now know from a few trials over a few hours that this is not as
> simple as some web posts present.
I have not had a need for this, so I had to search some "web posts" to
find the answer. Quckly, I found the following snippet:
LiftRules.determineContentType = {
case _ => "text/curl"
}
I have not verified this, so please let us know if it does not help.
> Were it trivial, I had not mocked a framework, and you, Mr. Pollock,
> had not raged.
>From my readings, Mr. Pollak has yet to show any rage.
--Bryan
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[Lift] Re: Git wiki formatting
I added a blank line before the element. It looks good now. Please verify. --Bryan On Tue, Oct 6, 2009 at 9:03 PM, Naftoli Gugenheim wrote: > > Anyone? Please? > > On Mon, Oct 5, 2009 at 5:13 PM, Naftoli Gugenheim > wrote: >> Can someone please fix the formatting on >> http://wiki.github.com/dpp/liftweb/example-paginating-mapper-based-snippets-with-sortable-headers >> ? >> Thanks! >> > > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Binding - keepAttrs?
I am trying to update an old lift application I wrote using
1.1-SNAPSHOT. It looks like bind is no longer keeping the attributes
I've defined in the template.
bind("f", xhtml,
"pickupDate" -> keepAttrs(SHtml.text(pickupDate.is, pickupDate(_))),
"submit" -> SHtml.submit("Search", processSearch)
)
Renders as
But should be
Thanks,
Bryan
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[Lift] Re: customizing my SiteMap
Oops. I forgot to add "home" into the menu. Usage: On Jun 28, 8:08 pm, Bryan wrote: > Hi David, > > I created a custom snippet, MyMenu, to do > this:http://paste.pocoo.org/show/EVKLV81FdRuz257apvS7/. See its select > method. I just happened to rewrite the code this morning and haven't > gotten around to testing it, so I hope it still works. > > Usage: > > > > > > > > > > > This assumes that home, photos, links, and contact are defined as Loc > names in your SiteMap. > > Let me know if you have any questions. > > Regards, > Bryan Germann > > On Sun, Jun 28, 2009 at 2:47 PM, David Persons wrote: > > > Hello guys, > > > For a project, we use a pre-defined html / css template. This template > > displays the menu as follows: > > > > > > > > > home > > > photos > > > about > > > links > > > contact > > > > > > > > > How can I retrieve this 'current page item' and generate the html > > shown above? Can somebody try to give a code example? > > > regards, > > David Persons --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: customizing my SiteMap
Hi David, I created a custom snippet, MyMenu, to do this: http://paste.pocoo.org/show/EVKLV81FdRuz257apvS7/. See its select method. I just happened to rewrite the code this morning and haven't gotten around to testing it, so I hope it still works. Usage: This assumes that home, photos, links, and contact are defined as Loc names in your SiteMap. Let me know if you have any questions. Regards, Bryan Germann On Sun, Jun 28, 2009 at 2:47 PM, David Persons wrote: > > Hello guys, > > For a project, we use a pre-defined html / css template. This template > displays the menu as follows: > > > > > > home > > photos > > about > > links > > contact > > > > > > How can I retrieve this 'current page item' and generate the html > shown above? Can somebody try to give a code example? > > regards, > David Persons > > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: JPA and auto generation of id
Try upgrading your hibernate version from 3.3.1.ga to 3.3.2.GA.
Derek, can you look into upgrading the archetype to this release as
well? I recall 3.3.1.ga having some packaging issues.
--Bryan
On Wed, Jun 24, 2009 at 6:29 PM, David Persons wrote:
>
> Thanks for all the answers guys.
>
> I managed to fix the id problem, I needed the Hibernate specific class
> GenericGenerator to fix it, which of cource is less pretty then using
> only JPA. Someone has an example of how to make it work with MySql and
> only JPA annotations? Current version:
>
> @Entity
> class Scene {
> �...@id
> �...@genericgenerator{val name="hibernate-increment", val
> strategy="increment"}
> �...@generatedvalue{val strategy = GenerationType.SEQUENCE, val
> generator = "hibernate-increment"}
> var id : Long = _
>
> �...@column{val unique = true, val nullable = false}
> var ordering : Int = _
>
> �...@column{val unique = true, val nullable = false}
> var name : String = ""
>
> �...@manytoone{val optional = false}
> var storyBoard : StoryBoard = _
> }
>
> However, now I get an org.hibernate.PropertyValueException: not-null
> property references a null or transient value:
> model.Scene.storyBoard :-s I tried a lot of things already, the
> corresponding StoryBoard is saved and not null, so I guess it has to
> be transient. Merging the StoryBoard however still gives the same
> error..
>
> I tried to get JPA and Lift working together in the same way as in the
> JPADemo example.. Is it the use of MySql which prevents the example
> from working for me?
>
> regards,
> David
>
> On 23 jun, 00:54, Derek Chen-Becker wrote:
>> Also, what does the schema for the entity's table look like?
>>
>> On Mon, Jun 22, 2009 at 4:54 PM, Derek Chen-Becker
>> wrote:
>>
>> > Mind posting the snippet of code where you're saving the instance? A merge
>> > should interpret a null ID as a fresh instance, and a persist should just
>> > save it.
>>
>> > Derek
>>
>> > On Mon, Jun 22, 2009 at 1:50 PM, David Persons wrote:
>>
>> >> I am using MySql (5). After setting the hibernate.dialect to
>> >> org.hibernate.dialect.MySQLDialect in my persistence.xml file, I get a
>> >> org.hibernate.AssertionFailure: null id :-s
>>
>> >> cheers
>>
>> >> On 22 jun, 19:18, Derek Chen-Becker wrote:
>> >> > That's not accurate, at least with Hibernate. By putting the annotations
>> >> on
>> >> > vars, the compiler ends up putting them on the internal fields, which
>> >> then
>> >> > forces Hibernate into a field-based persistence model and not a
>> >> > getter/setter based one. The SQLGrammarException is most likely what the
>> >> > other people have said. If you're in Oracle or PostgreSQL, for instance,
>> >> you
>> >> > need a sequence set up for the auto identity model. What database are
>> >> you
>> >> > using?
>>
>> >> > Derek
>>
>> >> > On Mon, Jun 22, 2009 at 8:54 AM, Eric Bowman wrote:
>>
>> >> > > David Persons wrote:
>> >> > > > Hello guys,
>>
>> >> > > > I get a org.hibernate.exception.SQLGrammarException: could not get
>> >> or
>> >> > > > update next value error everytime I try to save the following
>> >> Entity:
>>
>> >> > > > @Entity
>> >> > > > class Scene {
>> >> > > > @Id
>> >> > > > @GeneratedValue(){val strategy = GenerationType.AUTO}
>> >> > > > var id : Long = _
>>
>> >> > > > @Column{val unique = true, val nullable = false}
>> >> > > > var ordering : Int = _
>>
>> >> > > > @Column{val unique = true, val nullable = false}
>> >> > > > var name : String = ""
>>
>> >> > > > @ManyToOne{val optional = false}
>> >> > > > var storyBoard : StoryBoard = _
>> >> > > > }
>>
>> >> > > You almost certainly need some scala.reflect.BeanProperty annotations
>> >> on
>> >> > > your fields.
>>
>> >> > > cheers,
>> >> > > Eric
>>
>> >> > > --
>> >> > > Eric Bowman
>> >> > > Boboco Ltd
>> >> > > ebow...@boboco.ie
>> >> > >http://www.boboco.ie/ebowman/pubkey.pgp
>> >> > > +35318394189/+353872801532<
>> >>http://www.boboco.ie/ebowman/pubkey.pgp%0A+35318394189/+353872801532>
>
> >
>
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[Lift] Re: Is Hudson Stuck? 6/24
I'm using http://hudson.scala-tools.org/job/Lift/. On Jun 24, 9:08 pm, Bryan wrote: > Is this the correct URL to check on the status of the Hudson build? > If so, is it stuck? > > --Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Is Hudson Stuck? 6/24
Is this the correct URL to check on the status of the Hudson build? If so, is it stuck? --Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Lift Jquery autocomplete *** API CHANGE CANDIDATE ***
Hi Marius,
I just updated to the tip and got a build failure:
[WARNING] /home/bryan/public-repos/git/liftweb/sites/example/src/main/
scala/net/liftweb/example/snippet/Ajax.scala:65: error: value
autocomplete is not a member of object net.liftweb.http.jquery.JqSHtml
[WARNING] "auto" -> JqSHtml.autocomplete("", buildQuery _, _
=> ()))
--Bryan
On Jun 15, 2:16 pm, "marius d." wrote:
> Folks,
>
> I just made the autocomplete a Lift widget so it does not exist
> anymore in JqShtml object. Here is an example on how to use it:
>
> - For Ajax autocomplete
> AutoComplete("", (current, limit) => {
> println("current = " + current)
> (1 to limit).map(v => "Value_" + v)
> }, s => println("submit " + s))
>
> - For pre-provided options list
> AutoComplete.autocompleteObj(/*same params as bfore*/)
>
> This may break your app but I think it is very easy to update it.
>
> I also fixed some bugs:
> 1. It didn;t work if the container cookies were turned off
> 2. hovering on the options list did not work on Ubuntu FF3 at least
> due to a capitalizated LI equality test.
>
> If you encounter any problems, please let me know.
>
> Br's,
> Marius
>
> On Jun 8, 12:34 pm, Kevin Wright
> wrote:
>
> > +1
>
> > As an evolving framework, it definitely makes more sense to favour
> > consistency over backward compatibility at this stage
>
> > On Mon, Jun 8, 2009 at 9:00 AM, marius d. wrote:
>
> > > Other folks, please speak up ! :) ... I will soon migrate this into a
> > > Lift widget.
>
> > > Br's,
> > > Marius
>
> > > On Jun 6, 4:53 pm, David Pollak wrote:
> > > > I think I'm using in one place in one project so my api breakage factor
> > > is
> > > > low. I'm okay with moving it unless someone else is going to feel real
> > > > pain.
>
> > > > On Jun 6, 2009 12:24 AM, "Marius" wrote:
>
> > > > Is there a reason why the JQuery autocomplete is not a Lift widget but
> > > > instead it lives in http/jquery package? .. I remember a long time ago
> > > > me putting it in the jquery package to separate SHtml stuff that is
> > > > dependent on JQuery to the others.
>
> > > > Thoughts?
>
> > > > Br',
> > > > Marius
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[Lift] Re: How to remove leading text in Msgs.error
+1 on removing the default text. --Bryan On Jun 5, 6:46 am, "marius d." wrote: > The reason for that is that if the node text is empty (and yes we > explicitly trim it) we render the default text. To be honest I'm not a > fan of this approach either. I think it should be ok to just not > render a default text. Does anyone have any objections? If not I could > change this real quick, if yes let's talk about it. > > Br's, > Marius > > On Jun 5, 12:48 pm, Jeppe Nejsum Madsen wrote: > > > Hi, > > > I'm trying to remove the "Notice", "Error" lead in text that is > > displayed when using the Msgs snippet, like this: > > > > > > > > > > > > > > Looking at the code, it seems the default text is used if the specified > > text is empty, so I tried putting a in there but this also seems > > to be swallowed. > > > Is there anyway to do this (besides changing the default property > > values)?? > > > /Jeppe --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Future of the Lift wiki
I too am willing to help. I really like the format of the django documentation: http://docs.djangoproject.com/en/dev/. Any other recommendations out there? Thanks, Bryan On Jun 2, 6:57 am, Kevin Wright wrote: > Mark me down :) > > On Tue, Jun 2, 2009 at 9:36 AM, marius d. wrote: > > > I believe Debbie was asking the community for a few folks willing to > > "garden" the wiki. Anyone interested? > > > Br's, > > Marius > > > On Jun 2, 11:07 am, Timothy Perrett wrote: > > > Guys, > > > > I know you chaps are quite new on this lift, so just to add a bit of > > > background - we've been here many, many times before with various > > > people pledging to fix and cleanup the wiki (myself included!) > > > > After much discussion we decided that what was needed were gardeners - > > > not perhaps to write the articles themselves (as they may not be able > > > to if its about complex lift internals), but rather, to hassle the > > > commit team into churning out the required information that the > > > gardeners can distill onto the wiki. This involves going through the > > > current wiki and removing the old / irrelevant stuff. > > > > Cheers, Tim > > > > On Jun 2, 3:36 am, g-man wrote: > > > > > Having gone through Rails, the Google App Engine with Django, and > > > > web2py over the last four years, I have seen it all as far as learning > > > > new frameworks goes, and I have posted a few ideas on that subject > > > > both here and on the book group. > > > > > For those of us spoiled by the wealth of learning material on Rails, > > > > and to a lesser degree Django and web2py, all I can say is: 'Lift is a > > > > new framework, and a sophisticated one at that, which uses a new > > > > language derived from a convoluted one, and is at a relatively early > > > > stage of development, so therefore the designers are forging ahead to > > > > completion of the foundation, and thus there are few who can devote > > > > the time to creating the documentation we newcomers need.' > > > > > My post on the book group defined the three classes of useful > > > > documents to be the Guidebook, the Encyclopedia, and the Cookbook. My > > > > role for the wiki is to hold Cookbook recipes which answer the most > > > > common 'how to' questions we encounter when building a website. > > > > > In my personal learning quest, I am extending the 'ToDo' app by adding > > > > pieces of functionality, like many-to-many tagging, date manipulation, > > > > deletion, an admin interface, etc. > > > > > As I come across solutions or questions, I post those on the group in > > > > order to help others and to get improvements and refinements from the > > > > members. > > > > > David is right... Lift and Scala together are taking web applications > > > > to a whole new level of performance, so naturally it will take a > > > > little time to make things happen. > > > > > By the way, today my copies of David's and Martin's Scala books > > > > arrived, and I urge all to purchase them yourselves! > > > > > On Jun 1, 3:35 pm, "Charles F. Munat" wrote: > > > > > > Hi, Xavi, > > > > > > One of my tasks is to come up with a good organization for the wiki > > and > > > > > a site map, as well as a list of things we'd like to add to it. > > > > > Unfortunately, with the coming Scala/Liftoff and OSB conferences, > > I've > > > > > been swamped with other things. But I am working on it, albeit > > slowly. > > > > > If you have any specific recommendations, please post them. > > > > > > Thanks! > > > > > > Chas. > > > > > > Xavi Ramirez wrote: > > > > > > Hello, > > > > > > > I'm a bit confused about the future of the lift wiki. What's the > > end > > > > > > goal? In an ideal world is it supposed to be the main repository > > of > > > > > > lift knowledge, or just another documentation source? > > > > > > > I personally feel that having one repository of knowledge is much > > more > > > > > > noob friendly. Currently new members have to navigate through > > started > > > > > > guides, books, e-mail threads, scala docs, and personal blogs to > > find > > > > > > relative information. Though the get started guided and book > > provide > > > > > > a good introduction, it's hard to progress from novice to > > intermediate > > > > > > with these fragmented resources. > > > > > > > Thanks, > > > > > > Xavi --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Showing a Box or Redirecting?
Thanks, guys. I've done something similar to what Marius provided. I
thought about using an implicit, but I did not think it would be
immediately obvious for someone else to realize what was going on in
showA -- without the introduction of some implicit conversion
indicator in my IDE.
Thanks,
Bryan
On Jun 1, 12:10 am, David Pollak
wrote:
> class SomeSnippet {
> implicit def boxOpener(in: Box[NodeSeq]): NodeSeq = in openOr
> {S.error("Inactive"); S.redirectTo(S.referer openOr "/")}
>
> def showA(xhtml: NodeSeq): NodeSeq =
> for {
> id <- S.param("id")
> info <- session1.get(id)
> } yield bind("foo", xhtml, "thing" -> info.x)
>
> }
>
> The implicit makes the Box[NodeSeq] turn into a NodeSeq or redirects the
> user.
>
> Thanks,
>
> David
>
>
>
> On Sat, May 30, 2009 at 6:12 PM, Bryan wrote:
>
> > If Foo has 5 methods that I need to show in a Snippet (scattered
> > throughout the template), what's a good way to S.error("inactive");
> > S.redirectTo("/") whenever Box[Foo] cannot be opened because it is not
> > Full, without having to write a bunch of boiler plate code for each of
> > the show methods I have defined below.
>
> > class SomeSnippet {
> > val foo: Box[Foo] = tryo(session1.get(S.param("id").getOrElse("")))
>
> > def showA(xhtml: NodeSeq): NodeSeq = ...
> > def showB(xhtml: NodeSeq): NodeSeq = ...
> > def showC(xhtml: NodeSeq): NodeSeq = ...
> > def showD(xhtml: NodeSeq): NodeSeq = ...
> > def showE(xhtml: NodeSeq): NodeSeq = ...
> > }
>
> > Thanks,
> > Bryan
>
> --
> 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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[Lift] Re: Showing a Box or Redirecting?
I guess I should just have def showFoo(xhtml: NodeSeq) and use bind to
render A, B, C, D, and E.
--Bryan
On May 30, 9:12 pm, Bryan wrote:
> If Foo has 5 methods that I need to show in a Snippet (scattered
> throughout the template), what's a good way to S.error("inactive");
> S.redirectTo("/") whenever Box[Foo] cannot be opened because it is not
> Full, without having to write a bunch of boiler plate code for each of
> the show methods I have defined below.
>
> class SomeSnippet {
> val foo: Box[Foo] = tryo(session1.get(S.param("id").getOrElse("")))
>
> def showA(xhtml: NodeSeq): NodeSeq = ...
> def showB(xhtml: NodeSeq): NodeSeq = ...
> def showC(xhtml: NodeSeq): NodeSeq = ...
> def showD(xhtml: NodeSeq): NodeSeq = ...
> def showE(xhtml: NodeSeq): NodeSeq = ...
>
> }
>
> Thanks,
> Bryan
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[Lift] Re: Where is scalajpa.jar?
http://scala-tools.org/repo-snapshots/org/scala-tools/scalajpa/ --Bryan On May 30, 8:37 pm, c...@munat.com wrote: > Missing: > -- > 1) org.scala-libs:scalajpa:jar:1.1-SNAPSHOT > > Try downloading the file manually from the project website. > > Then, install it using the command: > mvn install:install-file -DgroupId=org.scala-libs > -DartifactId=scalajpa -Dversion=1.1-SNAPSHOT -Dpackaging=jar > -Dfile=/path/to/file > > Alternatively, if you host your own repository you can deploy the file > there: > mvn deploy:deploy-file -DgroupId=org.scala-libs > -DartifactId=scalajpa -Dversion=1.1-SNAPSHOT -Dpackaging=jar > -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id] > > Path to dependency: > 1) com.munat.totc:totc-app:war:1.0-SNAPSHOT > 2) org.scala-libs:scalajpa:jar:1.1-SNAPSHOT > > -- > 1 required artifact is missing. > > (Yes, I did blow away .m2.) > > Chas. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Showing a Box or Redirecting?
If Foo has 5 methods that I need to show in a Snippet (scattered
throughout the template), what's a good way to S.error("inactive");
S.redirectTo("/") whenever Box[Foo] cannot be opened because it is not
Full, without having to write a bunch of boiler plate code for each of
the show methods I have defined below.
class SomeSnippet {
val foo: Box[Foo] = tryo(session1.get(S.param("id").getOrElse("")))
def showA(xhtml: NodeSeq): NodeSeq = ...
def showB(xhtml: NodeSeq): NodeSeq = ...
def showC(xhtml: NodeSeq): NodeSeq = ...
def showD(xhtml: NodeSeq): NodeSeq = ...
def showE(xhtml: NodeSeq): NodeSeq = ...
}
Thanks,
Bryan
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[Lift] Re: Giving an Actor access to S
Thanks.
--Bryan
On May 26, 11:33 am, David Pollak
wrote:
> As long as you have access to the LiftSession, you can initialize S and use
> it correctly:
>
> case MyMessage =>
> S.initIfUninitted(theSession) {
> ... code to execute in the actor scope
>
> }
>
> Thanks,
>
> David
>
>
>
> On Mon, May 25, 2009 at 11:39 AM, Bryan wrote:
>
> > How can I give an Actor access to S? I need this for adding results
> > to a SessionVar of a HashMap.
>
> > If I call show() directly, then I see "localhost" logged. If I call
> > show() from within an actor, then it logs "nowhere_123.com":
> > listener ! 'show.
>
> > val listener: Actor = actor {
> > loop {
> > react {
> > case 'show => show()
> > }
> > }
> > }
>
> > def show() {
> > Log.info("show's host name: " + S.hostName)
> > }
>
> --
> 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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[Lift] Re: Giving an Actor access to S
Thanks for the reply, guys. I just need it to set a SessionVar.
I have these actors that fetch some data. When I instantiate my Actor
class (in an instantiated class that has access to all of S), I pass
in an anonymous function to process the data. I would like to store
these results in a SessionVar, but I am currently not able to.
These results are short lived and should expire at the end of a user's
session.
Thanks,
Bryan
On May 26, 1:42 am, "marius d." wrote:
> Well and S object is initiated but in an asynchronous operation you
> wont really have request information cause you are beyond a request
> scope. Some things from S maybe available at that time.
>
> Br's,
> Marius
>
> On May 26, 1:42 am, Timothy Perrett wrote:
>
> > My understanding was always that CometActor's "faked" S so its usage
> > was fairly transparent of course, thats specific to CometActors
> > and wont wash with a normal scala.actor.Actor etc
>
> > Cheers, Tim
>
> > On May 25, 10:01 pm, "marius d." wrote:
>
> > > CometActors are asynchronous components that live beyond the scope of
> > > a given request. From a CometActor you can have access to LiftSession
> > > or SessionVars meaning that you could potentially "store" the "last-
> > > seen" from the last request host name in a SessionVar an then access
> > > it anytime from your actor.
>
> > > Not sure why you need the hostName from inside an actor but you know
> > > best what application you are building.
>
> > > Br's,
> > > Marius
>
> > > On May 25, 9:39 pm, Bryan wrote:
>
> > > > How can I give an Actor access to S? I need this for adding results
> > > > to a SessionVar of a HashMap.
>
> > > > If I call show() directly, then I see "localhost" logged. If I call
> > > > show() from within an actor, then it logs "nowhere_123.com":
> > > > listener ! 'show.
>
> > > > val listener: Actor = actor {
> > > > loop {
> > > > react {
> > > > case 'show => show()
> > > > }
> > > > }
>
> > > > }
>
> > > > def show() {
> > > > Log.info("show's host name: " + S.hostName)
>
> > > > }
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[Lift] Giving an Actor access to S
How can I give an Actor access to S? I need this for adding results
to a SessionVar of a HashMap.
If I call show() directly, then I see "localhost" logged. If I call
show() from within an actor, then it logs "nowhere_123.com":
listener ! 'show.
val listener: Actor = actor {
loop {
react {
case 'show => show()
}
}
}
def show() {
Log.info("show's host name: " + S.hostName)
}
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[Lift] Re: Strange Comet Behavior
Wow, this is great stuff! setupComet was a very thoughtful addition. Thanks, David. Regards, Bryan On May 12, 6:13 pm, David Pollak wrote: > Bryan, > > I've reworked your example... and based on my re-work, I added a method to > LiftSession that allows you to send messages to a CometActor referenced > later on. > > I hope you like it. > > Thanks, > > David > > > > On Mon, May 11, 2009 at 7:08 PM, Bryan. wrote: > > > Yes, the alerts were there just to illustrate that I am trying to push > > some JavaScript objects over the wire. In my project code I also have > > additional methods that will be called on these objects (i.e. sorting, > > pagination, etc...) that make it faster for the client end if I just > > use these objects instead of traversing the HTML; it also makes it > > easier for me to implement and is independent of any changes made to > > the markup. > > > If the example I provided is some one-off implementation, then let me > > know and I will start looking into some comet alternatives or try to > > come up with some "hack". Is there a way to currently check if the > > page is ready for the partialUpdate? If so, then I can just add some > > guard to the cases in my partial function passed to lowPriority. > > > Thanks, > > Bryan > > > On May 11, 6:31 pm, David Pollak > > wrote: > > > On Mon, May 11, 2009 at 3:08 PM, Bryan. wrote: > > > > > Hi David, > > > > > Is it possible that the partialUpdate is being called before the page > > > > is ready? > > > > Yes. > > > > Doing alerts in partial updates is not optimal. I'd suggest doing all > > the > > > drawing via HTML. You can do a partial update in a way that it will > > modify > > > the HTML. > > > > When a CometActor is rendered on a new page, its render method is called > > if > > > there have been partial updates to the component since the component was > > > last rendered. > > > > > It works fine if I put Thread.sleep(1000) after the case > > > > Results. > > > > > Thanks, > > > > Bryan > > > > > On May 11, 5:21 pm, David Pollak > > > > wrote: > > > > > Try putting the "this.start" at the end of the Actor body... I think > > the > > > > > start method is being called prematurely. > > > > > > On Mon, May 11, 2009 at 1:14 PM, Bryan. wrote: > > > > > > > I posted this message through the Google Groups interface and was > > > > > > forced to upload tohttp:// > > groups.google.com/group/liftweb/files?hl=en. > > > > > > Sorry about the confusion. > > > > > > > --Bryan > > > > > > > On May 11, 4:01 pm, David Pollak > > > > > > wrote: > > > > > > > You didn't include the code... :-( > > > > > > > > On Mon, May 11, 2009 at 12:18 PM, Bryan > > wrote: > > > > > > > > > This could be a result of my strange usage of comet actors, but > > I'm > > > > > > > > getting incosistent comet behavior. When run in windows + > > jetty I > > > > > > > > have no problems. In linux + jetty, subsequent requests fail. > > > > I'll > > > > > > > > explain. > > > > > > > > > I have attached comet-test.tar.gz to the files page as an > > example. > > > > > > > > When you enter in a search term and click on submit it should > > popup > > > > up > > > > > > > > 2 JS alert messages. This seems to work everytime upon first > > > > request > > > > > > > > (when you restart jetty). On all susequent tries of the Jetty > > > > > > > > instance, the comet requests fail when you click back to the > > home > > > > page > > > > > > > > and search again. I've tried clearing my browser cache, > > cookies, > > > > and > > > > > > > > even trying on a remote windows browser with no luck. If I add > > > > > > > > Thread.sleep(1000) to the comet actor's localSetup, then > > everything > > > > > > > > appears to work OK. > > > > > > > > > Please see the sample code and let me know if I'm doing > > something > > > > > > > > wrong. > > > >
[Lift] Re: Strange Comet Behavior
Yes, the alerts were there just to illustrate that I am trying to push some JavaScript objects over the wire. In my project code I also have additional methods that will be called on these objects (i.e. sorting, pagination, etc...) that make it faster for the client end if I just use these objects instead of traversing the HTML; it also makes it easier for me to implement and is independent of any changes made to the markup. If the example I provided is some one-off implementation, then let me know and I will start looking into some comet alternatives or try to come up with some "hack". Is there a way to currently check if the page is ready for the partialUpdate? If so, then I can just add some guard to the cases in my partial function passed to lowPriority. Thanks, Bryan On May 11, 6:31 pm, David Pollak wrote: > On Mon, May 11, 2009 at 3:08 PM, Bryan. wrote: > > > Hi David, > > > Is it possible that the partialUpdate is being called before the page > > is ready? > > Yes. > > Doing alerts in partial updates is not optimal. I'd suggest doing all the > drawing via HTML. You can do a partial update in a way that it will modify > the HTML. > > When a CometActor is rendered on a new page, its render method is called if > there have been partial updates to the component since the component was > last rendered. > > > > > It works fine if I put Thread.sleep(1000) after the case > > Results. > > > Thanks, > > Bryan > > > On May 11, 5:21 pm, David Pollak > > wrote: > > > Try putting the "this.start" at the end of the Actor body... I think the > > > start method is being called prematurely. > > > > On Mon, May 11, 2009 at 1:14 PM, Bryan. wrote: > > > > > I posted this message through the Google Groups interface and was > > > > forced to upload tohttp://groups.google.com/group/liftweb/files?hl=en. > > > > Sorry about the confusion. > > > > > --Bryan > > > > > On May 11, 4:01 pm, David Pollak > > > > wrote: > > > > > You didn't include the code... :-( > > > > > > On Mon, May 11, 2009 at 12:18 PM, Bryan wrote: > > > > > > > This could be a result of my strange usage of comet actors, but I'm > > > > > > getting incosistent comet behavior. When run in windows + jetty I > > > > > > have no problems. In linux + jetty, subsequent requests fail. > > I'll > > > > > > explain. > > > > > > > I have attached comet-test.tar.gz to the files page as an example. > > > > > > When you enter in a search term and click on submit it should popup > > up > > > > > > 2 JS alert messages. This seems to work everytime upon first > > request > > > > > > (when you restart jetty). On all susequent tries of the Jetty > > > > > > instance, the comet requests fail when you click back to the home > > page > > > > > > and search again. I've tried clearing my browser cache, cookies, > > and > > > > > > even trying on a remote windows browser with no luck. If I add > > > > > > Thread.sleep(1000) to the comet actor's localSetup, then everything > > > > > > appears to work OK. > > > > > > > Please see the sample code and let me know if I'm doing something > > > > > > wrong. > > > > > > > Thanks, > > > > > > Bryan > > > > > > -- > > > > > 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Strange Comet Behavior
Hi David, Is it possible that the partialUpdate is being called before the page is ready? It works fine if I put Thread.sleep(1000) after the case Results. Thanks, Bryan On May 11, 5:21 pm, David Pollak wrote: > Try putting the "this.start" at the end of the Actor body... I think the > start method is being called prematurely. > > > > On Mon, May 11, 2009 at 1:14 PM, Bryan. wrote: > > > I posted this message through the Google Groups interface and was > > forced to upload tohttp://groups.google.com/group/liftweb/files?hl=en. > > Sorry about the confusion. > > > --Bryan > > > On May 11, 4:01 pm, David Pollak > > wrote: > > > You didn't include the code... :-( > > > > On Mon, May 11, 2009 at 12:18 PM, Bryan wrote: > > > > > This could be a result of my strange usage of comet actors, but I'm > > > > getting incosistent comet behavior. When run in windows + jetty I > > > > have no problems. In linux + jetty, subsequent requests fail. I'll > > > > explain. > > > > > I have attached comet-test.tar.gz to the files page as an example. > > > > When you enter in a search term and click on submit it should popup up > > > > 2 JS alert messages. This seems to work everytime upon first request > > > > (when you restart jetty). On all susequent tries of the Jetty > > > > instance, the comet requests fail when you click back to the home page > > > > and search again. I've tried clearing my browser cache, cookies, and > > > > even trying on a remote windows browser with no luck. If I add > > > > Thread.sleep(1000) to the comet actor's localSetup, then everything > > > > appears to work OK. > > > > > Please see the sample code and let me know if I'm doing something > > > > wrong. > > > > > Thanks, > > > > Bryan > > > > -- > > > 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Strange Comet Behavior
I posted this message through the Google Groups interface and was forced to upload to http://groups.google.com/group/liftweb/files?hl=en. Sorry about the confusion. --Bryan On May 11, 4:01 pm, David Pollak wrote: > You didn't include the code... :-( > > > > On Mon, May 11, 2009 at 12:18 PM, Bryan wrote: > > > This could be a result of my strange usage of comet actors, but I'm > > getting incosistent comet behavior. When run in windows + jetty I > > have no problems. In linux + jetty, subsequent requests fail. I'll > > explain. > > > I have attached comet-test.tar.gz to the files page as an example. > > When you enter in a search term and click on submit it should popup up > > 2 JS alert messages. This seems to work everytime upon first request > > (when you restart jetty). On all susequent tries of the Jetty > > instance, the comet requests fail when you click back to the home page > > and search again. I've tried clearing my browser cache, cookies, and > > even trying on a remote windows browser with no luck. If I add > > Thread.sleep(1000) to the comet actor's localSetup, then everything > > appears to work OK. > > > Please see the sample code and let me know if I'm doing something > > wrong. > > > Thanks, > > Bryan > > -- > 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Strange Comet Behavior
This could be a result of my strange usage of comet actors, but I'm getting incosistent comet behavior. When run in windows + jetty I have no problems. In linux + jetty, subsequent requests fail. I'll explain. I have attached comet-test.tar.gz to the files page as an example. When you enter in a search term and click on submit it should popup up 2 JS alert messages. This seems to work everytime upon first request (when you restart jetty). On all susequent tries of the Jetty instance, the comet requests fail when you click back to the home page and search again. I've tried clearing my browser cache, cookies, and even trying on a remote windows browser with no luck. If I add Thread.sleep(1000) to the comet actor's localSetup, then everything appears to work OK. Please see the sample code and let me know if I'm doing something wrong. Thanks, Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Tail merge?
A nice use for this "tail merge" would be for the Google Analytics tracking code, especially the ecommerce tracking code. Here's something to keep an eye on as well: http://blog.digg.com/?p=621 -- still very new and in development. --Bryan On May 10, 9:57 am, David Pollak wrote: > On Sun, May 10, 2009 at 6:55 AM, marius d. wrote: > > > People can choose to "smash" multiple js/css files into a single one, > > in fact it is a common practice. However for scripts that can be > > deferred putting them at the bottom of the page can improve rendering. > > Okay.. so we're not actually putting the scripts on the page, we're just > putting them right about the tag? > > > > > > > Br's, > > Marius > > > On May 10, 4:42 pm, David Pollak > > wrote: > > > On Fri, May 8, 2009 at 5:26 PM, Timothy Perrett > >wrote: > > > > > Sounds like this could be a neat addition. Looking forward to see what > > you > > > > come up with :-) > > > > I'm not 100% keen on it. Loading a ton of stuff into the HTML page > > (rather > > > than having stuff cached by the browser) makes for larger page sizes. > > I'd > > > much rather see a tool that would analyze the scripts and css that was > > > included across lots of pages and recommending to the developer to make > > 10 > > > CSS files or 20 script files into 1. But that's just me. > > > > > Cheers, Tim > > > > > On 08/05/2009 20:19, "marius d." wrote: > > > > > > A built in snippet might me a good addition. I could > > > > > probably allocate some time to noodle on it. > > > > > > Br's, > > > > > Marius > > > > > > On May 8, 5:05 pm, KWright wrote: > > > > >> It's becoming an established best practice that scripts should be > > put > > > > >> at the END of a page, where possible, in order to speed up download > > > > >> times > > > > > >> Good article here:http://developer.yahoo.com/performance/rules.html > > > > > >> It would be nice if Lift could help encourage and support this by > > > > >> allowing a (or ?) element that could be merged in > > > > >> the same fashion as the head element, perhaps also removing > > > > >> duplicates, etc. > > > > > >> This element would then disappear and expose only its content when > > the > > > > >> page is ultimately sent to the browser. > > > > -- > > > 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: How to handle refresh with S.redirectTo with state?
Thanks for the reply, Marius.
I just saw your reply and am not sure I fully grasp how this is safe.
What if request A comes in and sets com.bryan.myproject.locationQuery
and starts working on processing the rest of the request. In the
meantime, request B comes in and sets
com.bryan.myproject.locationQuery. Now request A finishes processing
the request, upon which it has to read in
com.bryan.myproject.locationQuery. Wouldn't request A now be reading
in com.bryan.myproject.locationQuery set by request B?
Or have I mistaken how objects work and how requests are handled in
lift?
Thanks,
Bryan
On May 4, 2:24 am, "marius d." wrote:
> Not at all. They are safe.
>
> On May 3, 9:49 pm, "Bryan." wrote:
>
> > Would that mean that the state of the RequestVar could accidentally be
> > shared with multiple requests?
>
> > On May 3, 1:51 pm, "marius d." wrote:
>
> > > Hmmm ... the code seems to be fine (as far as I can tell from the code
> > > snippet)
>
> > > Can you perhaps declare your RequestVars outside of Cars scope?
>
> > > just
>
> > > object locationQuery extends RequestVar[Box[LocationQuery]](Empty)
>
> > > class Cars {
> > > ...
>
> > > }
>
> > > .. personally I would avoid using open_! unless I'm really sure that
> > > the Box is not Empty.
>
> > > Br's,
> > > Marius
>
> > > On May 3, 7:08 pm, "Bryan." wrote:
>
> > > > I believe I am doing #1 now with no luck. Let me know if this is
> > > > correct:
>
> > > > class Cars {
> > > > // ...
> > > > object locationQuery extends RequestVar[Box[LocationQuery]](Empty)
>
> > > > def search(xhtml: NodeSeq): NodeSeq = {
> > > > def processSearch() = {
> > > > // ...
> > > > val lq = new LocationQuery(validPickupDate.open_!,
> > > > validDropoffDate.open_!, city, city)
> > > > S.redirectTo("/select", () => { locationQuery(Full(lq));
> > > > requestReference(Full(requestRef)) })
> > > > }
>
> > > > // binds are here
> > > > }
>
> > > > def selectedLocation(xhtml: NodeSeq): NodeSeq = {
> > > > if (locationQuery.isDefined) {
> > > > val selectedCity = locationQuery.open_!.pickupLocation
> > > > Text(selectedCity.name + ", " + selectedCity.region)
> > > > } else {
> > > > Text("")
> > > > }
> > > > }
>
> > > > // ...
>
> > > > }
>
> > > > Thanks,
> > > > Bryan
>
> > > > On May 3, 11:46 am, "marius d." wrote:
>
> > > > > Oh.. 1 & 2 are unrelated ... just slightly different approaches.
>
> > > > > On May 3, 6:45 pm, "marius d." wrote:
>
> > > > > > Well instead of open_1 use openOr so that you wont get exceptions
> > > > > > when
> > > > > > the Box is Empty. Also if you want when you to the redirect you
> > > > > > could
> > > > > > propagate those RequestsVars as well so that your browser re-send
> > > > > > them. Now sure if this is what you'd want but should help avoiding
> > > > > > Empty request vars. But what I'd do is:
>
> > > > > > 1. Since you are doing redirect with state in the function passed to
> > > > > > S.redirectTo you can set relevant values to your RequestVar's ..
> > > > > > hence
> > > > > > when your page is rendered your request vars have the old values
> > > > > > potentially.
> > > > > > 2. Use a StatefulSnippet and call redirectTo from the
> > > > > > StatefulSnippet
> > > > > > not S. Hence you can save state inside your snippet and when
> > > > > > redirect
> > > > > > happens, the same snippet instance would be used.
>
> > > > > > Br's,
> > > > > > Marius
>
> > > > > > On May 3, 6:08 pm, Bryan wrote:
>
> > > > > > > I have a snippet that calls S.redirectTo with state. In this same
> > > > > > > snippet class I have a few functions to show the values of the
> > > > > > > processed RequestVar's. This works fine until I refresh the page,
> > > > > > > because in these functions I call .open_! on some now Empty
> > > > > > > RequestVar's. It is simple enough to show Text("") when the box
> > > > > > > is
> > > > > > > not Full, but now I have a problem with the page not showing
> > > > > > > useful
> > > > > > > data.
>
> > > > > > > What are some suggestions for handling this? Should I just add
> > > > > > > code
> > > > > > > to each of my many snippet functions to redirect to "/" when the
> > > > > > > RequestVar's are empty?
>
> > > > > > > Thanks,
> > > > > > > Bryan
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[Lift] Re: binder
Hi Derek,
The form submits, but the function does not seem to be getting
called. I do see the POST, but am then brought back to the same
page. I typed up this question right before I went to bed so I don't
remember all of the details.
Thanks,
Bryan
On May 5, 9:38 am, Derek Chen-Becker wrote:
> It looks right to me. What's not working? Does the button not get emitted or
> is the function not being called?
>
> Derek
>
> On Mon, May 4, 2009 at 9:00 PM, Bryan wrote:
>
> > How can I create a "widget" to render a customized . This is
> > probably trivial, but I failed on my first attempt.
>
> > object MyButton {
> > def red(value: String, func: () => Unit, attrs: (String, String)*):
> > Elem =
> > fmapFunc(NFuncHolder(func))(funcName =>
> > ... a few
> > images will go here ... )
>
> > and in my snippet
>
> > bind("f", xhtml, ...
> > "submit" -> MyButton.red("Search", processSearch))
>
> > Thanks,
> > Bryan
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[Lift] binder
How can I create a "widget" to render a customized . This is
probably trivial, but I failed on my first attempt.
object MyButton {
def red(value: String, func: () => Unit, attrs: (String, String)*):
Elem =
fmapFunc(NFuncHolder(func))(funcName =>
... a few
images will go here ... )
and in my snippet
bind("f", xhtml, ...
"submit" -> MyButton.red("Search", processSearch))
Thanks,
Bryan
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[Lift] Re: How to handle refresh with S.redirectTo with state?
Would that mean that the state of the RequestVar could accidentally be
shared with multiple requests?
On May 3, 1:51 pm, "marius d." wrote:
> Hmmm ... the code seems to be fine (as far as I can tell from the code
> snippet)
>
> Can you perhaps declare your RequestVars outside of Cars scope?
>
> just
>
> object locationQuery extends RequestVar[Box[LocationQuery]](Empty)
>
> class Cars {
> ...
>
> }
>
> .. personally I would avoid using open_! unless I'm really sure that
> the Box is not Empty.
>
> Br's,
> Marius
>
> On May 3, 7:08 pm, "Bryan." wrote:
>
> > I believe I am doing #1 now with no luck. Let me know if this is
> > correct:
>
> > class Cars {
> > // ...
> > object locationQuery extends RequestVar[Box[LocationQuery]](Empty)
>
> > def search(xhtml: NodeSeq): NodeSeq = {
> > def processSearch() = {
> > // ...
> > val lq = new LocationQuery(validPickupDate.open_!,
> > validDropoffDate.open_!, city, city)
> > S.redirectTo("/select", () => { locationQuery(Full(lq));
> > requestReference(Full(requestRef)) })
> > }
>
> > // binds are here
> > }
>
> > def selectedLocation(xhtml: NodeSeq): NodeSeq = {
> > if (locationQuery.isDefined) {
> > val selectedCity = locationQuery.open_!.pickupLocation
> > Text(selectedCity.name + ", " + selectedCity.region)
> > } else {
> > Text("")
> > }
> > }
>
> > // ...
>
> > }
>
> > Thanks,
> > Bryan
>
> > On May 3, 11:46 am, "marius d." wrote:
>
> > > Oh.. 1 & 2 are unrelated ... just slightly different approaches.
>
> > > On May 3, 6:45 pm, "marius d." wrote:
>
> > > > Well instead of open_1 use openOr so that you wont get exceptions when
> > > > the Box is Empty. Also if you want when you to the redirect you could
> > > > propagate those RequestsVars as well so that your browser re-send
> > > > them. Now sure if this is what you'd want but should help avoiding
> > > > Empty request vars. But what I'd do is:
>
> > > > 1. Since you are doing redirect with state in the function passed to
> > > > S.redirectTo you can set relevant values to your RequestVar's .. hence
> > > > when your page is rendered your request vars have the old values
> > > > potentially.
> > > > 2. Use a StatefulSnippet and call redirectTo from the StatefulSnippet
> > > > not S. Hence you can save state inside your snippet and when redirect
> > > > happens, the same snippet instance would be used.
>
> > > > Br's,
> > > > Marius
>
> > > > On May 3, 6:08 pm, Bryan wrote:
>
> > > > > I have a snippet that calls S.redirectTo with state. In this same
> > > > > snippet class I have a few functions to show the values of the
> > > > > processed RequestVar's. This works fine until I refresh the page,
> > > > > because in these functions I call .open_! on some now Empty
> > > > > RequestVar's. It is simple enough to show Text("") when the box is
> > > > > not Full, but now I have a problem with the page not showing useful
> > > > > data.
>
> > > > > What are some suggestions for handling this? Should I just add code
> > > > > to each of my many snippet functions to redirect to "/" when the
> > > > > RequestVar's are empty?
>
> > > > > Thanks,
> > > > > Bryan
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[Lift] Re: How to handle refresh with S.redirectTo with state?
I believe I am doing #1 now with no luck. Let me know if this is
correct:
class Cars {
// ...
object locationQuery extends RequestVar[Box[LocationQuery]](Empty)
def search(xhtml: NodeSeq): NodeSeq = {
def processSearch() = {
// ...
val lq = new LocationQuery(validPickupDate.open_!,
validDropoffDate.open_!, city, city)
S.redirectTo("/select", () => { locationQuery(Full(lq));
requestReference(Full(requestRef)) })
}
// binds are here
}
def selectedLocation(xhtml: NodeSeq): NodeSeq = {
if (locationQuery.isDefined) {
val selectedCity = locationQuery.open_!.pickupLocation
Text(selectedCity.name + ", " + selectedCity.region)
} else {
Text("")
}
}
// ...
}
Thanks,
Bryan
On May 3, 11:46 am, "marius d." wrote:
> Oh.. 1 & 2 are unrelated ... just slightly different approaches.
>
> On May 3, 6:45 pm, "marius d." wrote:
>
> > Well instead of open_1 use openOr so that you wont get exceptions when
> > the Box is Empty. Also if you want when you to the redirect you could
> > propagate those RequestsVars as well so that your browser re-send
> > them. Now sure if this is what you'd want but should help avoiding
> > Empty request vars. But what I'd do is:
>
> > 1. Since you are doing redirect with state in the function passed to
> > S.redirectTo you can set relevant values to your RequestVar's .. hence
> > when your page is rendered your request vars have the old values
> > potentially.
> > 2. Use a StatefulSnippet and call redirectTo from the StatefulSnippet
> > not S. Hence you can save state inside your snippet and when redirect
> > happens, the same snippet instance would be used.
>
> > Br's,
> > Marius
>
> > On May 3, 6:08 pm, Bryan wrote:
>
> > > I have a snippet that calls S.redirectTo with state. In this same
> > > snippet class I have a few functions to show the values of the
> > > processed RequestVar's. This works fine until I refresh the page,
> > > because in these functions I call .open_! on some now Empty
> > > RequestVar's. It is simple enough to show Text("") when the box is
> > > not Full, but now I have a problem with the page not showing useful
> > > data.
>
> > > What are some suggestions for handling this? Should I just add code
> > > to each of my many snippet functions to redirect to "/" when the
> > > RequestVar's are empty?
>
> > > Thanks,
> > > Bryan
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[Lift] Re: Lift documentation -- Attention newcomers (and everyone else)!
I'd like to help with the wiki as well. Let me know if there is anything in particular that you would like me to do. --Bryan On May 3, 9:46 am, David Pollak wrote: > On Sun, May 3, 2009 at 6:33 AM, Axel Rose wrote: > > > > > > > Hello Charles, > > > I know I'm a bit late for your request to consolidate the lift wiki. > > > Anyway: > > It's really puzzling to me to get the version numbers right, when creating > > a new > > archetype with maven. > > > The Maven mini guide athttp://wiki.liftweb.net/index.php/Maven_Mini_Guide > > is not so helpful. > > > Perhaps it would be good to color the version numbers and clearly state > > what > > will be downloaded from maven and what to do if I wanted to use snapshots. > > Does pom.xml need to be changed? > > > A howto for Google App Engine usage is missing. Here I'd need to use > > snapshots. > > > Also: > > Make it easier for guests to put suggestions into the wiki. I'm too > > lazy to register. > > We've done just the opposite. You can only get an account if you make a > request (Derek and I create the accounts). We've had far too much > wiki vandalism and are clamping down by making sure everybody who has > write-access to the wiki is willing to ask for an account. > > > > > Regards, > > Axel. > > -- > 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] How to handle refresh with S.redirectTo with state?
I have a snippet that calls S.redirectTo with state. In this same
snippet class I have a few functions to show the values of the
processed RequestVar's. This works fine until I refresh the page,
because in these functions I call .open_! on some now Empty
RequestVar's. It is simple enough to show Text("") when the box is
not Full, but now I have a problem with the page not showing useful
data.
What are some suggestions for handling this? Should I just add code
to each of my many snippet functions to redirect to "/" when the
RequestVar's are empty?
Thanks,
Bryan
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[Lift] Re: Sample applications are somewhat slow - is Lift slow ?
Hi Daniel, You can pass the following to mvn: -Drun.mode=production. --Bryan On May 3, 9:18 am, Daniel Guryca wrote: > Hi David, > > Thank you for your reply. > > How and where can I set production vs development mode in lift ? > > Thank you again. > Daniel > > On Sun, May 3, 2009 at 3:12 PM, David Pollak > wrote: > > > Are you running Lift in production or development mode? > > I typically see 300 pages/second to 800 pages/second when I do benchmarks > > on dual core opteron machines. > > > I'll look into this, but you should be seeing north of 300 pages per second > > with simple pages in Lift. > > > On Sat, May 2, 2009 at 1:32 PM, Dunsun wrote: > > >> Hi, > > >> I'm very new to lift and scala. > > >> I have made some Grails intranet applications but sadly Grails or > >> better say GSP rendering part which is completely written in Groovy is > >> a very slow beast (even in comparison with Rails or Django). > > >> For my future big project (heavy loaded site) I need something much > >> faster. > > >> So I have made some quick and dirty Lift benchmarks using ApacheBench > >> + Tomcat, GlassFish (from netbeans) and even Jetty. > >> My machine - AMD X2 @ 2500Mhz, 4 GB RAM > > >> LIFT BASIC SAMPLE: > >> ab -c 10 -n 3000 > >>http://localhost:8080/liftbasic-1.0-SNAPSHOT/user_mgt/login > >> 50 req/s > > >> LIFT BLANK SAMPLE: > >> ab -c 10 -n 3000http://localhost:8080/liftblank-1.0/ > >> 120 req/s > > >> Obtained numbers were similar for all 3 servers. > > >> Using Stripes and rendering similar simple pages I'm getting much much > >> higher scores (600 req/s). > >> Using Grails I'm getting little worse results but I would say it is > >> same league. > >> I would expect much better performance from Lift which is written in > >> scala. > > >> Why am I getting these low numbers ? > >> Am I doing something wrong ? > >> Any suggestion is very welcome. > > >> regards > >> Daniel > > > -- > > 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: scalar queries in Lift/JPA
I've never tried this on a scalar query, but a constructor expression
example should be something like this:
"select new com.chas.values.AnswerCount(t.answer, count(distinct
answer)) from ..."
class AnswerCount(answer: String, count: Long) {
private def nullToOption[T](v: T) = v match { case null => None case
_ => Some(v) }
def getAnswer = nullToOption(answer)
def getCount = nullToOption(count)
}
object AnswerCount {
def unapply(ac: AnswerCount): Option[(Option[String], Option[Long])]
= {
Some(ac.getAnswer, ac.getCount)
}
}
Sources:
http://edocs.bea.com/kodo/docs41/full/html/ejb3_langref.html#ejb3_langref_constructor
On Apr 23, 4:11 pm, Derek Chen-Becker wrote:
> Oliver, I've never done anything like that in JPA or Hibernate. Is that
> actually possible? Can you "create" a class instance within a query?
>
> Derek
>
> On Thu, Apr 23, 2009 at 2:47 PM, Charles F. Munat wrote:
>
>
>
> > I'm not really sure how I would go about this, but I'll think about it
> > when I have time to get back to that code.
>
> > Thanks, Oliver.
>
> > Chas.
>
> > Oliver Lambert wrote:
> > > Is there anything to stop you defining an class/entity {answer: String,
> > > countAnswer: Int} and to directly create it from JPA (of course, it's
> > > read only).
>
> > > On Wed, Apr 22, 2009 at 9:36 AM, Charles F. Munat > > > wrote:
>
> > > I was thinking tuples, but that didn't work. I'll try your
> > suggestion.
> > > BTW, for anyone reading along, I forgot the group by clause in the
> > query
> > > below.
>
> > > Chas.
>
> > > Derek Chen-Becker wrote:
> > > > I think that the type would be Array[Any] and you'll get one
> > > String and
> > > > Int for each row.
>
> > > > Derek
>
> > > > On Tue, Apr 21, 2009 at 3:37 PM, Charles F. Munat > >
> > > > >> wrote:
>
> > > > Anyone have a quick example of how to run a scalar query in
> > > JPA? I can't
> > > > find anything in the JPA demo.
>
> > > > I have this query:
>
> > > > select t.answer, count(distinct answer) from Vote t where
> > > t.poll = :poll
> > > > order by t.answer
>
> > > > but how do I call it? I normally do:
>
> > > > Model.createNamedQuery[...]("findVoteCountAnswersByPoll",
> > > "poll" ->
> > > > poll).findAll
>
> > > > But what is the type? And how do I get the results back out?
>
> > > > I know I did this once before somewhere, but I can't remember
> > > where and
> > > > I can't find it.
>
> > > > Thanks!
>
> > > > Chas.
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[Lift] JPA Run Modes
Is it possible to use mvn -Drun.mode with JPA in lift? For example, "mvn -Drun.mode=production" would use persistence-prod.xml. This will allow me to keep my test data separate from my development data. Thanks, Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Need for lightweight JPA archetype
Great! I can't wait to check these out. Thanks, Bryan On Apr 13, 6:32 pm, Timothy Perrett wrote: > Awesome work Derek! > > On 13/04/2009 23:24, "Derek Chen-Becker" wrote: > > > > > OK, I just checked in two more archetypes for JPA: > > > lift-archetype-jpa-blank - same as the basic one, but with only the bare > > minimum set of files for a JPA project with separate Persistence and Web > > modules > > lift-archetype-jpa-blank-single - same as blank, but set up to all be in a > > single project instead of using modules. > > > Derek > > > On Sun, Apr 5, 2009 at 10:23 AM, Derek Chen-Becker > > wrote: > >> Ah, I forgot to check in the BookOps.add.doAdd method whether or not the > >> author was set. There should be a check there with an error that would > >> prevent a book from not having an author. Even better, I should update the > >> Book entity object to put a not-null constraint on the author property. > >> I'll > >> get this fixed in the archetype and in the demo site. > > >> Derek > > >> On Sat, Apr 4, 2009 at 5:04 PM, bradford wrote: > > >>> I pasted it here: http://pastebin.com/m1da32b3 > > >>> Thanks, > >>> Bradford > > >>> On Apr 4, 5:25 pm, Derek Chen-Becker wrote: > >>>> > If you have a second, could you send the stack trace for the NPE? > >>>> > That's > >>>> > definitely not something that should be happening. > > >>>> > Derek > > >>>> > On Sat, Apr 4, 2009 at 2:34 PM, bradford wrote: > > >>>>> > > Yeah, just NetBeans. It probably makes sense, but everything in > >>>>> > > NetBeans was fine after I did mvn compile; mvn install. Running the > >>>>> > > app works too. I did happen to get a NullPointerException when I > >>>>> > > would add a book with no author. And then again when I would click > >>>>> > > on > >>>>> > > Book list. Just an FYI. > > >>>>> > > Thanks a lot for the demo and your help. > > >>>>> > > Thanks, > >>>>> > > Bradford > > >>>>> > > On Apr 4, 3:26 pm, Derek Chen-Becker wrote: > >>>>>> > > > Hmmm. Does maven complain if you try to compile, or is it just > >>>>>> NetBeans? > > >>>>>> > > > Derek > > >>>>>> > > > On Sat, Apr 4, 2009 at 9:31 AM, bradford > >>>>>> wrote: > > >>>>>>> > > > > Hi, > > >>>>>>> > > > > I think I would like to use JPA for my project. This > >>>>>>> > > > > archetype > would > >>>>>>> > > > > be nice. Just a second ago I ran mvn archtype:generate on > >>>>>>> > > > > lift- > >>>>>>> > > > > archetype-jpa-basic. NetBeans is complaining on 'import > >>>>>>> > > > > javax.persistence._' not being found in jpatest-spa's > >>>>>>> Author.scala. > >>>>>>> > > > > It also complains on 'import org.scala_libs.jpa._' in > >>>>>>> jpatest-web's > >>>>>>> > > > > Model.scala. > > >>>>>>> > > > > Thanks, > >>>>>>> > > > > Bradford > > >>>>>>> > > > > On Apr 3, 4:45 am, "Charles F. Munat" wrote: > >>>>>>>> > > > > > No, I meant there were a few candidates for a first commit, > not that > >>>>>>>> > > > > > someone else should do it. I have my fingers in a bunch of > things at > >>>>> > > the > >>>>>>>> > > > > > moment... > > >>>>>>>> > > > > > At the moment, however, I have to pay the bills. But I'll > keep > >>>>> > > tinkering. > > >>>>>>>> > > > > > Chas. > > >>>>>>>> > > > > > Timothy Perrett wrote: > >>>>>>>>> > > > > > > Probally between yourself and Derek in all honesty - I > simply dont > >>>>>>>>&
[Lift] Re: Conversation Context
That type of Wizard would be nice, though I am not a big fan of XML. Thank you for your willingness to come up with a solution, but I don't have a specific need for it right now. There is a project I may be working on in the future that is similar to the hotel website featured in that document I linked to. I just wanted to see what is possible to do with lift right now. Regards, Bryan On Jan 22, 1:40 pm, David Pollak wrote: > Bryan, > > There's no much in Lift to support what you're looking to do. > > For 1.1, there will be something like SmartMode Wizard > (seehttps://www.lostlake.org/wizard.wmv) > > If you can tell us something about your application, requirements, use > cases, whatever, we'll work to tailor a solution for you. > > Thanks, > > David > > > > On Thu, Jan 22, 2009 at 10:31 AM, Bryan wrote: > > > Hi Marius, > > > I would like the conversations contained within each tab. If I were > > to use just a Session variable then the user's state/data would > > "collide" and therefore cause unexpected behavior. > > > This link does a better job of describing how conversations solve this > > problem: > >http://www.informit.com/content/images/9780131347960/samplechapter/01... > > . > > > Thanks, > > Bryan > > > On Jan 22, 12:29 pm, Marius wrote: > > > The conversation context could be kept in a SessionVar. When your > > > context terminates (say user clicked a button). You can attach a > > > cleanUp function to the SessionVar (see registerCleanupFunc) so when > > > your context terminates you can just call remove() on your SessionVar > > > > Would that help or I'm just misunderstanding your case? > > > > Br's, > > > Marius > > > > On Jan 22, 6:24 pm, Bryan wrote: > > > > > Does lift offer conversation contexts? If so, could someone provide > > > > me with an example. > > > > > I am not sure if conversation context is the proper term, but I am > > > > using this term as it is used by JBoss Seam. A partial description > > > > would be an "approach that allows state to be scoped to a unit of work > > > > and automatically handles memory cleanup when a conversation is no > > > > longer in use." This would allow users to work in multiple tabs. > > > > Keeping the back button working during this process would be a *huge* > > > > plus. > > > > > Thanks, > > > > Bryan > > -- > Lift, the simply functional web frameworkhttp://liftweb.net > Collaborative Task Managementhttp://much4.us > Follow me:http://twitter.com/dpp > Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Conversation Context
Hi Marius, I would like the conversations contained within each tab. If I were to use just a Session variable then the user's state/data would "collide" and therefore cause unexpected behavior. This link does a better job of describing how conversations solve this problem: http://www.informit.com/content/images/9780131347960/samplechapter/0131347969_CH08.pdf. Thanks, Bryan On Jan 22, 12:29 pm, Marius wrote: > The conversation context could be kept in a SessionVar. When your > context terminates (say user clicked a button). You can attach a > cleanUp function to the SessionVar (see registerCleanupFunc) so when > your context terminates you can just call remove() on your SessionVar > > Would that help or I'm just misunderstanding your case? > > Br's, > Marius > > On Jan 22, 6:24 pm, Bryan wrote: > > > Does lift offer conversation contexts? If so, could someone provide > > me with an example. > > > I am not sure if conversation context is the proper term, but I am > > using this term as it is used by JBoss Seam. A partial description > > would be an "approach that allows state to be scoped to a unit of work > > and automatically handles memory cleanup when a conversation is no > > longer in use." This would allow users to work in multiple tabs. > > Keeping the back button working during this process would be a *huge* > > plus. > > > Thanks, > > Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Conversation Context
Does lift offer conversation contexts? If so, could someone provide me with an example. I am not sure if conversation context is the proper term, but I am using this term as it is used by JBoss Seam. A partial description would be an "approach that allows state to be scoped to a unit of work and automatically handles memory cleanup when a conversation is no longer in use." This would allow users to work in multiple tabs. Keeping the back button working during this process would be a *huge* plus. Thanks, Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Image Submit Buttons fail to Submit (in IE)
It would be nice to have some control over this. I work on a site where we forward users to the iPhone version of the site when they access / and their user agent matches the iPhone (or iPod Touch) user agent. But, we also provide them with a link to view the full version of the site. This is just something to consider. We handle the full version switch through some additional paths we have setup, but I've seen cookie- based implementations of this as well. --Bryan On Sep 26, 7:40 am, Marius <[EMAIL PROTECTED]> wrote: > Very true Viktor. > > Some mobile terminals like some of Nokia S40 series have both service > browsers and web browsers (for some awkward reason). Service browsers > even if they are capable of WAP or internet connectivity their support > of XHTML is very limited. There is an XHTML-MP standard out there. > > Br's, > Marius > > On Sep 26, 2:24 pm, "Viktor Klang" <[EMAIL PROTECTED]> wrote: > > > On Fri, Sep 26, 2008 at 12:15 PM, Charles F. Munat <[EMAIL PROTECTED]> > > wrote: > > > > Ah, I forgot that you were talking server-side. Hmm. I'll have to think > > > about this. > > > > For mobile browsers, are you talking ones that use WML? (Does anyone > > > still use that?) For something like that, I think you could use the > > > Accept HTTP header. User Agent is going to be very tricky. > > > Perhaps you want to have a more light-weighted page for mobile consumers? > > > > But for something like this, shouldn't you send a default button > > > (assuming JS is off), and then a JS script that does the object > > > detection client-side and replaces the button with an image button? I'm > > > not clear -- why do you want to do the detection server-side? > > > > Chas. > > > > Marius wrote: > > > > Charles ... this is not only about JS level. One may simply click a > > > > link or submit a simple form (with NO JS involved) and lift should > > > > probably be aware of browser type it can correct some browser specific > > > > idiosyncrasies in the resulting markup. Certain applications may need > > > > for instance to detect if a mobile browser is used instead of a PC > > > > browser. > > > > > I don't think there is some other option then user-agent. But user- > > > > agent can be used today in lift but I agree that a higher abstraction > > > > is needed. > > > > > P.S. > > > > At JS level, yeah object detection sounds really good. > > > > > Br's, > > > > Marius > > > > > On Sep 26, 12:25 pm, "Charles F. Munat" <[EMAIL PROTECTED]> wrote: > > > >> Browser detection is a really bad idea, and I would recommend avoiding > > > >> it at all costs. A much better solution is object detection. > > > > >> Here's one pretty good description about why this is so: > > > > >>http://developer.apple.com/internet/webcontent/objectdetection.html > > > > >> Here's another: > > > > >>http://www.quirksmode.org/js/support.html > > > > >> And one more (for the unconvinced :-) > > > > >>http://www.evotech.net/blog/2007/07/browser-detection-versus-object-d. > > > .. > > > > >> Chas. > > > > >> Tim Perrett wrote: > > > >>> Am I being dumb here - could we not just run some checks on the user- > > > >>> agent header and respond appropriately? > > > >>> It would be very cool if SHtml was browser aware. > > > >>> Cheers > > > >>> Tim > > > -- > > Viktor Klang > > Senior Systems Analyst --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Comet and Flot
Yes, I plan on sharing all of the knowledge that I learn from this in
either the wiki or a blog entry. What I'm trying to do is tail my log
files and send them to lift via AMQP. lift will then parse each log
line (which contain some statistical information) and plot them every
5 seconds.
lift has an AMQP listener which sends a message to my Stats actor.
The following is a snippet of code in that Stats object (with that
code snipped out to make this message shorter). This code assumes
that flot can maintain history, so I am trying to push 5 seconds worth
of Map data to the graph every 5 seconds. This is just sample code
and the map won't be empty in actuality, but it will be created with
default keys and values.
def notifyListeners(newStat: Map[String, (Int, Long)]) = {
listeners.foreach(_ ! UpdateStats(newStat))
}
def act = loop(new EmptyMap[String, (Int, Long)])
def loop(map: Map[String, (Int, Long)]) {
react {
// ... snip ...
case Push =>
notifyListeners(map)
ActorPing.schedule(this, Push, 5000L)
loop(new EmptyMap[String, (Int, Long)])
}
}
start
ActorPing.schedule(this, Push, 5000L)
On Sep 21, 9:58 am, "David Pollak" <[EMAIL PROTECTED]>
wrote:
> On Sat, Sep 20, 2008 at 5:16 PM, Bryan <[EMAIL PROTECTED]> wrote:
>
> > I am interested in adding some (almost) real-time charts to a project
> > of mine. I have a couple of questions, though.
>
> > 1) Is there documentation on lift's server and client implementation
> > of comet available online?
>
> None that I'm aware of, but I certainly hope you'll make wiki entries based
> on this exchange.
>
>
>
> > 2) Are there any reasons why dojo's comet client wasn't considered?
>
> Because Dojo is yet another JavaScript library and the goal is to have fewer
> absolute dependencies (Lift can currently be used with YUI and jQuery thanks
> to Marius' work.) Layering Dojo in would have been more complexity for very
> little gain.
>
>
>
> > 3) I see that there is a flot widget that will be integrated into lift
> > soon. What benefits do these widgets offer over a normal JavaScript
> > implementation?
> > 4) I have an immutable Map of data that I need to "push" to the JQuery
> > chart. Where should I begin? Do I send this in JSON format?
>
> Do you want to push the whole map or deltas of the map?
>
> I'll put together some examples when I better understand what you want to
> do.
>
> Thanks,
>
> David
>
>
>
> > A lot of questions, I know!
>
> > p.s. I am loving lift so far. Great work. The CometActor tutorial
> > was very useful as well.
>
> > Thanks,
> > Bryan
>
> --
> Lift, the simply functional web frameworkhttp://liftweb.net
> Collaborative Task Managementhttp://much4.us
> Follow me:http://twitter.com/dpp
> Git some:http://github.com/dpp
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[Lift] Comet and Flot
I am interested in adding some (almost) real-time charts to a project of mine. I have a couple of questions, though. 1) Is there documentation on lift's server and client implementation of comet available online? 2) Are there any reasons why dojo's comet client wasn't considered? 3) I see that there is a flot widget that will be integrated into lift soon. What benefits do these widgets offer over a normal JavaScript implementation? 4) I have an immutable Map of data that I need to "push" to the JQuery chart. Where should I begin? Do I send this in JSON format? A lot of questions, I know! p.s. I am loving lift so far. Great work. The CometActor tutorial was very useful as well. Thanks, Bryan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
