Re: [Lift] scala-time and Lift pom.xml
Hi Peter, I read your mail, maybe you can help me. I'm wondering how I can integrate JodaTime or scala-time into my project. thanks. Hannes This is more a question for Jorge than anyone else but since it's Lift- related I thought I'd put it here: What's the easiest way to add scala-tools to my Lift project's pom.xml? My knowledge of Maven is very limited, but I hope that it is simply a matter of adding another repository and dependency. Thanks, Peter Robinett -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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=. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] scala-time and Lift pom.xml
Jim, Thanks that helped! Maybe its to late, or I don't know what, but. Its a bit complicated to use I think. What's about scala-time? For my purpose, I just need the the time as a number (e.g. long). How do I do that? thanks. In what fashion do you mean integrate? Adding this: dependency groupIdjoda-time/groupId artifactIdjoda-time/artifactId version1.6/version /dependency to the dependency section to your maven POM will bring in the jar files. On Fri, Feb 26, 2010 at 10:14 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi Peter, I read your mail, maybe you can help me. I'm wondering how I can integrate JodaTime or scala-time into my project. thanks. Hannes This is more a question for Jorge than anyone else but since it's Lift- related I thought I'd put it here: What's the easiest way to add scala-tools to my Lift project's pom.xml? My knowledge of Maven is very limited, but I hope that it is simply a matter of adding another repository and dependency. Thanks, Peter Robinett -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] scala-time and Lift pom.xml
THANKS! You saved my weekend On Fri, Feb 26, 2010 at 10:43 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Jim, Thanks that helped! Maybe its to late, or I don't know what, but. Its a bit complicated to use I think. What's about scala-time? For my purpose, I just need the the time as a number (e.g. long). How do I do that? java.util.Date will give it to you. thanks. In what fashion do you mean integrate? Adding this: dependency groupIdjoda-time/groupId artifactIdjoda-time/artifactId version1.6/version /dependency to the dependency section to your maven POM will bring in the jar files. On Fri, Feb 26, 2010 at 10:14 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi Peter, I read your mail, maybe you can help me. I'm wondering how I can integrate JodaTime or scala-time into my project. thanks. Hannes This is more a question for Jorge than anyone else but since it's Lift- related I thought I'd put it here: What's the easiest way to add scala-tools to my Lift project's pom.xml? My knowledge of Maven is very limited, but I hope that it is simply a matter of adding another repository and dependency. Thanks, Peter Robinett -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] scala-time and Lift pom.xml
I swear that I ONLY use it to compare if things are older than other things. I think comparison of long values is faster than string or date comparison, or? thanks. On Fri, Feb 26, 2010 at 10:52 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: THANKS! You saved my weekend You're welcome. On the other hand using a Long as a date terrifies me, and makes me think your weekend, and the next three are all toast... but, maybe not... On Fri, Feb 26, 2010 at 10:43 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Jim, Thanks that helped! Maybe its to late, or I don't know what, but. Its a bit complicated to use I think. What's about scala-time? For my purpose, I just need the the time as a number (e.g. long). How do I do that? java.util.Date will give it to you. thanks. In what fashion do you mean integrate? Adding this: dependency groupIdjoda-time/groupId artifactIdjoda-time/artifactId version1.6/version /dependency to the dependency section to your maven POM will bring in the jar files. On Fri, Feb 26, 2010 at 10:14 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi Peter, I read your mail, maybe you can help me. I'm wondering how I can integrate JodaTime or scala-time into my project. thanks. Hannes This is more a question for Jorge than anyone else but since it's Lift- related I thought I'd put it here: What's the easiest way to add scala-tools to my Lift project's pom.xml? My knowledge of Maven is very limited, but I hope that it is simply a matter of adding another repository and dependency. Thanks, Peter Robinett -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb
Re: [Lift] Re: scala-time and Lift pom.xml
OK, thanks a lot to all of you, for helping me! I really appreciate it! Keep your Longs as millisecond UTC timestmaps and you should be ok. That being said, it does make sense to keep your time information in time-specific objects. To use scala-time add the following to the dependencies section of your POM: !-- for scala-time -- dependency groupIdorg.scala-tools/groupId artifactIdtime/artifactId version2.7.4-0.1/version !-- FIXME: Using version for Scala 2.7.4! -- /dependency As I mentioned in your original thread about time, Jorge hasn't compiled scala-time for the latest versions of Scala but I found that the 2.7.4 version worked. Peter On Feb 26, 10:14 am, Jim Barrows jim.barr...@gmail.com wrote: On Fri, Feb 26, 2010 at 11:12 AM, Hannes hannes.flo...@gmx.li wrote: I swear that I ONLY use it to compare if things are older than other things. I think comparison of long values is faster than string or date comparison, or? In what timezone? and for what calendar? thanks. On Fri, Feb 26, 2010 at 10:52 AM, Hannes hannes.flo...@gmx.li wrote: THANKS! You saved my weekend You're welcome. On the other hand using a Long as a date terrifies me, and makes me think your weekend, and the next three are all toast... but, maybe not... On Fri, Feb 26, 2010 at 10:43 AM, Hannes hannes.flo...@gmx.li wrote: Jim, Thanks that helped! Maybe its to late, or I don't know what, but. Its a bit complicated to use I think. What's about scala-time? For my purpose, I just need the the time as a number (e.g. long). How do I do that? java.util.Date will give it to you. thanks. In what fashion do you mean integrate? Adding this: dependency groupIdjoda-time/groupId artifactIdjoda-time/artifactId version1.6/version /dependency to the dependency section to your maven POM will bring in the jar files. On Fri, Feb 26, 2010 at 10:14 AM, Hannes hannes.flo...@gmx.li wrote: Hi Peter, I read your mail, maybe you can help me. I'm wondering how I can integrate JodaTime or scala-time into my project. thanks. Hannes This is more a question for Jorge than anyone else but since it's Lift- related I thought I'd put it here: What's the easiest way to add scala-tools to my Lift project's pom.xml? My knowledge of Maven is very limited, but I hope that it is simply a matter of adding another repository and dependency. Thanks, Peter Robinett -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google
RE: [Lift] Re: redirectTo in (Stateful)Snippets
Hi David.
thanks for your answer. It helped me a lot!
Didn't knew that SiteMap disables serving unregistered pages..
Now two more questions to come:
1) citation from David: Second, you can define a subdirectory that all content
will be served from.
How do I do that?
2) I found out some strange behaviour: I named my page to redirect to
search.html.
When calling that page, an error occured:
Exception occured while processing /search
Message: java.lang.IllegalArgumentException: line 1 does not exist
scala.io.Source.getLine(Source.scala:280)
scala.io.Source.report(Source.scala:368)
scala.io.Source.reportError(Source.scala:355) (..)
When chosing another name for the page then all works fine.
So the question is: is the page name search an reserved keyword in Lift?
Thanks!
Hannes Restel | Fraunhofer Institut für Software- und Systemtechnik
Sichere Business IT-Infrastrukuren, Studentischer Mitarbeiter
Steinplatz 2, 10623 Berlin, Germany
Telefon: +49 (0)30/24 306-324
mailto:hannes.res...@isst.fraunhofer.de
http://www.isst.fraunhofer.de
From: liftweb@googlegroups.com [mailto:lift...@googlegroups.com] On Behalf Of
David Pollak
Sent: Monday, February 22, 2010 7:20 PM
To: liftweb@googlegroups.com
Subject: Re: [Lift] Re: redirectTo in (Stateful)Snippets
On Mon, Feb 22, 2010 at 1:53 AM, Restel, Hannes
hannes.res...@isst.fraunhofer.demailto:hannes.res...@isst.fraunhofer.de
wrote:
Hi Nico,
thanks for your answer.
I think you misunderstood me: I want to redirect to a HTML-page without using a
SiteMap at all. So the page I redirect to is not registered in any place. It
simply resides in my 'webapp' folder.
But when trying to redirect to that page, the resource (i.e. my page) is not
found.
Yes. This is correct behavior. If you have defined a SiteMap, Lift will not
serve any pages except those that are defined in the SiteMap. If you are using
Lift 1.0.x, there will be a polite message as part of the 404 informing you
why the page was not served (if you're running in development mode.)
You have a couple of choices to serve additional pages. First, you can include
them in the SiteMap and mark them as Hidden such that there's no menu item
displayed, but the page will still be served. Second, you can define a
subdirectory that all content will be served from.
So please try again :-)
(And yes: I did read The Lift Book :-)
Cheers,
Hannes
-Original Message-
From: liftweb@googlegroups.commailto:liftweb@googlegroups.com
[mailto:liftweb@googlegroups.commailto:liftweb@googlegroups.com] On Behalf Of
Nico Tromp
Sent: Friday, February 19, 2010 2:46 PM
To: Lift
Subject: [Lift] Re: redirectTo in (Stateful)Snippets
Hannes, sorry for the strange :) sentence. It should read:
did you register the page in the Boot class?
If you want to know more about the SiteMap have a look at chapter 5
from the lift book. At the bottom of the page (http://
groups.google.com/group/the-lift-bookhttp://groups.google.com/group/the-lift-book)
there is a link to the PDF
version.
Happy reading
Nico Tromp
On Feb 19, 1:49 pm, Nico Tromp
nico.tr...@gmail.commailto:nico.tr...@gmail.com wrote:
Hannes,
did you registered the page in the in the Boot class? Below is a small
example.
===
class Boot {
def boot {
// where to search snippet
// LiftRules.addToPackages(enter your package)
// Build SiteMap
val entries = Menu(Loc(Home, List(index), Home)) ::
Menu(Loc(Search, List(search), Search page)) ::
Nil
LiftRules.setSiteMap(SiteMap(entries:_*))
}}
===
Hope this is helpfull
Cheers Nico Tromp
On Feb 19, 1:26 pm, Restel, Hannes
hannes.res...@isst.fraunhofer.demailto:hannes.res...@isst.fraunhofer.de
wrote:
Hi,
I am new to Lift (and Scala) and need help with dispatching/redirecting to
a page after processing a form.
My problem: I get a The Requested URL /search was not found on this
server error message although the page search.html does exist.
When adding the page search.html to the LiftRules-SiteMap, then the page
does exist!
So is there any need to register HTML pages? I hope not!
This is my HTML fragment:
lift:surround with=default at=content
h3 class=alt Search
lift:HelloWorld.search form=POST
entry:searchfield/
entry:submit/
/lift:HelloWorld.search
/h3
/lift:surround
And this is the corresponding Scala code:
class HelloWorld extends StatefulSnippet {
override def dispatch:DispatchIt = {
case search = search _
}
def search(xhtml : NodeSeq) : NodeSeq = {
object searchExpression extends RequestVar()
def processSearch () {
if (searchExpression.isEmpty) {
S.error(Must not be empty!)
}
else {
S.notice(Value was: + searchExpression)
redirectTo(/search)
}
}
bind(entry, xhtml,
searchfield
RE: [Lift] Re: redirectTo in (Stateful)Snippets
Hi Nico,
thanks for your answer.
I think you misunderstood me: I want to redirect to a HTML-page without using a
SiteMap at all. So the page I redirect to is not registered in any place. It
simply resides in my 'webapp' folder.
But when trying to redirect to that page, the resource (i.e. my page) is not
found.
So please try again :-)
(And yes: I did read The Lift Book :-)
Cheers,
Hannes
-Original Message-
From: liftweb@googlegroups.com [mailto:lift...@googlegroups.com] On Behalf Of
Nico Tromp
Sent: Friday, February 19, 2010 2:46 PM
To: Lift
Subject: [Lift] Re: redirectTo in (Stateful)Snippets
Hannes, sorry for the strange :) sentence. It should read:
did you register the page in the Boot class?
If you want to know more about the SiteMap have a look at chapter 5
from the lift book. At the bottom of the page (http://
groups.google.com/group/the-lift-book) there is a link to the PDF
version.
Happy reading
Nico Tromp
On Feb 19, 1:49 pm, Nico Tromp nico.tr...@gmail.com wrote:
Hannes,
did you registered the page in the in the Boot class? Below is a small
example.
===
class Boot {
def boot {
// where to search snippet
// LiftRules.addToPackages(enter your package)
// Build SiteMap
val entries = Menu(Loc(Home, List(index), Home)) ::
Menu(Loc(Search, List(search), Search page)) ::
Nil
LiftRules.setSiteMap(SiteMap(entries:_*))
}}
===
Hope this is helpfull
Cheers Nico Tromp
On Feb 19, 1:26 pm, Restel, Hannes
hannes.res...@isst.fraunhofer.de wrote:
Hi,
I am new to Lift (and Scala) and need help with dispatching/redirecting to
a page after processing a form.
My problem: I get a The Requested URL /search was not found on this
server error message although the page search.html does exist.
When adding the page search.html to the LiftRules-SiteMap, then the page
does exist!
So is there any need to register HTML pages? I hope not!
This is my HTML fragment:
lift:surround with=default at=content
h3 class=alt Search
lift:HelloWorld.search form=POST
entry:searchfield/
entry:submit/
/lift:HelloWorld.search
/h3
/lift:surround
And this is the corresponding Scala code:
class HelloWorld extends StatefulSnippet {
override def dispatch:DispatchIt = {
case search = search _
}
def search(xhtml : NodeSeq) : NodeSeq = {
object searchExpression extends RequestVar()
def processSearch () {
if (searchExpression.isEmpty) {
S.error(Must not be empty!)
}
else {
S.notice(Value was: + searchExpression)
redirectTo(/search)
}
}
bind(entry, xhtml,
searchfield - SHtml.text(searchExpression.is,
searchExpression(_)),
submit - SHtml.submit(Suche, processSearch)
)
}
}
Why cannot my /search page be found?
Thanks for help!
Hannes
Hannes Restel | Fraunhofer Institut für Software- und Systemtechnik
Sichere Business IT-Infrastrukuren, Studentischer Mitarbeiter
Steinplatz 2, 10623 Berlin, Germany
Telefon: +49 (0)30/24 306-324
mailto:hannes.res...@isst.fraunhofer.dehttp://www.isst.fraunhofer.de
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Re: [Lift] Re: What is the current working pattern for storing timestamps?
Hi Peter, Thanks in advance. I was browsing through the list and read, that there's a lot of problems with the Java stuff. That's why I asked. I'll have a look at this JodaTime thing... thanks. Hi Hannes, Jonathan's suggestion of MappedDateTime is a good one and one that I have used. However, I haven't been super happy about how time is handled by, in my case, MappedDateTime + java.util.Date + MySQL Datetime. I played around a little with making a MappedField that holds a ScalaTime (ie JodaTime) object that would be persisted in a database as a millisecond UTC timestamp but didn't get very far with it. I believe if you look through this mailing list you'll find someone else (sorry, I forget who!) talking about basically doing just this and sharing some code. Anyway, just another possible approach... Peter On Feb 21, 10:59 am, Jonathan Hoffman jonhoff...@gmail.com wrote: Does MappedDateTime do what you want? Also look at MappedEnum for the status On Feb 21, 2010, at 6:07 AM, Hannes wrote: Hi Lifters, I'm using Mapper with Lift 1.1-M7 and I need to have some information about time. Especially I wanna store a time-stamp for a status field that can have three values: NEW; OPEN; CLOSED; So, what I thought about was defining two new fields open_time and close_time that I'd use to filter/sort items. thanks for any ideas! -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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] What is the current working pattern for storing timestamps?
Hi Lifters, I'm using Mapper with Lift 1.1-M7 and I need to have some information about time. Especially I wanna store a time-stamp for a status field that can have three values: NEW; OPEN; CLOSED; So, what I thought about was defining two new fields open_time and close_time that I'd use to filter/sort items. thanks for any ideas! -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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] redirectTo in (Stateful)Snippets
Hi,
I am new to Lift (and Scala) and need help with dispatching/redirecting to a
page after processing a form.
My problem: I get a The Requested URL /search was not found on this server
error message although the page search.html does exist.
When adding the page search.html to the LiftRules-SiteMap, then the page does
exist!
So is there any need to register HTML pages? I hope not!
This is my HTML fragment:
lift:surround with=default at=content
h3 class=alt Search
lift:HelloWorld.search form=POST
entry:searchfield/
entry:submit/
/lift:HelloWorld.search
/h3
/lift:surround
And this is the corresponding Scala code:
class HelloWorld extends StatefulSnippet {
override def dispatch:DispatchIt = {
case search = search _
}
def search(xhtml : NodeSeq) : NodeSeq = {
object searchExpression extends RequestVar()
def processSearch () {
if (searchExpression.isEmpty) {
S.error(Must not be empty!)
}
else {
S.notice(Value was: + searchExpression)
redirectTo(/search)
}
}
bind(entry, xhtml,
searchfield - SHtml.text(searchExpression.is, searchExpression(_)),
submit - SHtml.submit(Suche, processSearch)
)
}
}
Why cannot my /search page be found?
Thanks for help!
Hannes
Hannes Restel | Fraunhofer Institut für Software- und Systemtechnik
Sichere Business IT-Infrastrukuren, Studentischer Mitarbeiter
Steinplatz 2, 10623 Berlin, Germany
Telefon: +49 (0)30/24 306-324
mailto:hannes.res...@isst.fraunhofer.de
http://www.isst.fraunhofer.de
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Re: [Lift] Re: Documentation Site
Hi Tim, Thanks for your reply. 1.0 is the last official release that was not a milestone or snapshot - thus, they are the primary api docs right now until we release 2.0 (that is, what was being called 1.1 is being renamed to 2.0). API docs are a process issue, and handled as part of our build process - they will always live both on scala-tools and liftweb.net where applicable. They wont ever sit anywhere else (officially). I just mentioned the API docs, because some time ago I was on the look for something I couldn't find in the 1.0 docs and than I had real problems to find the link for the 1.1 docs. Yes, the wiki is a little out dated. I forget the number of times i've tried to spear head a wiki effort... the bottom line is that other people need to start writing content - there are a fair number of competent lift users in the community who simply are not giving anything back by way of articles or wiki cleaning - thus our docs get out dated fast because the team prefer to write code than documentation. We even tried to appointed a wiki gardener but he appears to have just disappeared into the ether... Id be open to hearing suggestions on how one could keep the wiki more up to date? Short of users actually contributing back, there is a limit on what the team can do at anyone time. We are getting there, but its not going to be an overnight process. Actually I didn't used the Lift Wiki so much, because in general I don't like the Media Wiki content organization so much. I think (my personal opinion) there are to much links and sometimes its hard to see which ones belong to the Media Wiki functionality itself and which ones are actually representing the interesting stuff. I think this was one of the major reasons why I didn't applied as a Wiki gardener. Blogs - a fundamental corner stone of the internet and your right, they are a great information repository. Perhaps we could syndicate some blogs onto liftweb.net during the rewrite (yes, im going to rewrite it at last!)... certainly open for that. Maybe some idea would be to setup liftweb.net with some CMS and first re-arrange and update the content there and than, as a second run, include Blogs, the Wiki and easy to find links for the API docs. Besides that, another problem with Media Wiki is, that it doesn't provide all the functionality, that this project needs and because of this, at least one other application is needed to deal with the rest. A CMS can do a lot and there are a lot of plug-ins available for all kinds of stuff (a lot of stuff that doesn't need to be re-invented). And I believe that one system is easier to handle than three different ones. Like I said before, just my opinion and an idea. Cheers, Tim PS: Sorry that was a bit of a rant, but this is a frustrating issue that i've been pushing for over a year ;-) thanks. On Dec 19, 1:16 pm, Hannes hannes.flo...@gmx.li wrote: Definitely! I would like one location for everything, but I believe that the current situation is not like that. - there two API docs 1.0 and 1.1, the latter is hard to find - there's liftweb.net (a little bit out-dated) - there's the Wiki - there's David's Blog (that has some unique information) What did I forget? thanks. Why not improve the existing wiki on github? Or fork the book and make improvements that way? I'm not opposed to additional resources, but why create another place where docs may or not be out of date? I think that Lift is still at the point where one location of docs is better. My opinion. On Dec 19, 6:37 am, Hannes hannes.flo...@gmx.li wrote: Hi Lifters, I'm thinking about setting up a site that takes together all available information about Lift (Links, News, ...). I would like to know, if this would be appreciated or not. I still think that all the available information is to much spread out - specially for people who get started with Lift. In case of positive responds, I would like to setup a Plone (CMS) site. I think its a really good tool, to organize content. thanks for listening. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post
[Lift] Documentation Site
Hi Lifters, I'm thinking about setting up a site that takes together all available information about Lift (Links, News, ...). I would like to know, if this would be appreciated or not. I still think that all the available information is to much spread out - specially for people who get started with Lift. In case of positive responds, I would like to setup a Plone (CMS) site. I think its a really good tool, to organize content. thanks for listening. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Documentation Site
Definitely! I would like one location for everything, but I believe that the current situation is not like that. - there two API docs 1.0 and 1.1, the latter is hard to find - there's liftweb.net (a little bit out-dated) - there's the Wiki - there's David's Blog (that has some unique information) What did I forget? thanks. Why not improve the existing wiki on github? Or fork the book and make improvements that way? I'm not opposed to additional resources, but why create another place where docs may or not be out of date? I think that Lift is still at the point where one location of docs is better. My opinion. On Dec 19, 6:37 am, Hannes hannes.flo...@gmx.li wrote: Hi Lifters, I'm thinking about setting up a site that takes together all available information about Lift (Links, News, ...). I would like to know, if this would be appreciated or not. I still think that all the available information is to much spread out - specially for people who get started with Lift. In case of positive responds, I would like to setup a Plone (CMS) site. I think its a really good tool, to organize content. thanks for listening. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] method call from out of nowhere
David Pollak schrieb:
On Mon, Nov 30, 2009 at 11:26 PM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hi David,
On Mon, Nov 30, 2009 at 12:11 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hi David,
In my LimitOrder Meta Object, I did:
override def afterCreate
to inform an Actor, everytime a new Order is created. The
Actor than calls the joinOtherOrders method.
#
I think I understand it now. Cause I'm creating new orders
inside the loop at some point. But still I don' t really
know, why it gets called after the old scope of
joinOtherOrders ends...
Sounds to me like it's all in your application's logic. As
others have pointed out, Thread.dumpStack will let you figure out
where things are being called.
I think the biggest problem is, that its necessary in my logic to
inform the Actor, everytime a new order is created. This
while-loop is an exception to this rule. I don't think that it
would be a good idea, to change the behavior of how the Actor
responds to messages, just to fix this case, or? Or is there any
chance to tell a new order NOT to inform the Actor, even when its
defined in def afterCreate ?
Without seeing the whole of your application logic, it's difficult for
me to advise you.
Also, you might want to use recursion and pattern matching to
replace your while loop (which is O(n^2) btw):
def dealWithList(in: List[Something]): Unit = in match {
case Nil = () // nothing left to do
case x :: _ if x.condition1 = x.doThing1
case x :: _ if x.condition2 = x.doThing2
case x :: xs if x.condition3 = x.doThing3 ; dealWithList(xs)
case _ :: xs = dealWithList(xs)
}
I thought about pattern matching as well, but in my first
implementation, I just wanted to get it running and change it
afterwards. Something else: I think recursion is slower than a
while-loop as long as its not tail recursive, or?
This case is tail recursive, so it's as fast as a well written while
loop. But you've got an O(n ^ 2) construct in your app, so
performance doesn't seem to be paramount.
No, performance is really importantbut I'm going to improve this
later on as well... :-)
thanks.
Thanks,
David
thanks.
You have the same semantics of a while loop with the ability to
break out, but the code is about your logic rather than about
looping.
thanks.
On Sun, Nov 29, 2009 at 7:24 AM, Hannes
hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote:
Hey Lifters,
How is joinOtherOrders being invoked?
I've some really strange things going on here. Please
consider this
method definition. I've put alot of print debug
statements between
other statements. There's a while-loop that only starts,
when the given
list (orders) is not empty. It stops when done is set
to true. So far,
so good. Than, have a look at the Lift output. I put in
a comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method
gets called again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , +
orders.isEmpty= + orders.isEmpty + , + done= + done)
if (this.lots.is http://this.lots.is ==
orders(i).lots.is http://lots.is){
println(case-1)
println(this= + this + ,
orders(i)= + orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-2)
println
Re: [Lift] method call from out of nowhere
It is called outside from an Actor, everytime a new item is created.
thanks.
Where is joinOtherOrders()called within your code?
alex
On Sun, Nov 29, 2009 at 7:24 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hey Lifters,
I've some really strange things going on here. Please consider this
method definition. I've put alot of print debug statements between
other statements. There's a while-loop that only starts, when the
given
list (orders) is not empty. It stops when done is set to true.
So far,
so good. Than, have a look at the Lift output. I put in a comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method gets called
again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , + orders.isEmpty= +
orders.isEmpty + , + done= + done)
if (this.lots.is http://this.lots.is ==
orders(i).lots.is http://lots.is){
println(case-1)
println(this= + this + , orders(i)= +
orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-2)
println(this= + this + , orders(i)= +
orders(i))
orders(i).reduceLots(this.lots.is
http://this.lots.is)
val newOrder = orders(i).cloneWith(this.lots.is
http://this.lots.is)
newOrder.save
this.open(newOrder)
println(before done= + done)
done = true
println(after done= + done)
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-3)
println(this= + this + , orders(i)= +
orders(i))
this.reduceLots(orders(i).lots.is http://lots.is)
val newOrder = this.cloneWith(orders(i).lots.is
http://lots.is)
newOrder.save
newOrder.open(orders(i))
}
i += 1
println(i += 1)
}
println(outside while)
}
def findLimitOrdersById: List[LimitOrder] =
this.findCandidates.map(x = LimitOrderMetaObj.findAll(
By(LimitOrderMetaObj.id, x)).head)
joinAll(findLimitOrdersById)
}
-- Lift Output
---
[INFO] Started Jetty Server
[INFO] Starting scanner at interval of 5 seconds.
INFO - Service request (GET)
/comet_request/54834680365/y7kybsmuyv1g took 64 Milliseconds
INFO - Service request (GET)
/comet_request/85319966940/y7kybsmuyv1g took 23 Milliseconds
INFO - Service request (GET) /favicon.ico took 86 Milliseconds
INFO - Service request (GET)
/comet_request/41521581405/y7kybsmuyv1g took 48 Milliseconds
INFO - Service request (GET)
/comet_request/93176242746/y7kybsmuyv1g took 7 Milliseconds
INFO - Service request (GET) /favicon.ico took 38 Milliseconds
INFO - Service request (GET) /favicon.ico took 5 Milliseconds
INFO - Service request (GET) / took 551 Milliseconds
INFO - Service request (GET)
/comet_request/81361316835/y7kybsmuyv1g took 9 Milliseconds
INFO - Service request (GET) /favicon.ico took 16 Milliseconds
INFO - Service request (GET) / took 61 Milliseconds
INFO - Service request (GET)
/comet_request/76898140873/y7kybsmuyv1g took 30 Milliseconds
INFO - Service request (GET)
/comet_request/e8jesgmo10oq/cometAjax.js took 14 Milliseconds
INFO - Service request (GET) / took 354 Milliseconds
INFO - Service request (GET) / took 734 Milliseconds
INFO - Service request (GET) / took 484 Milliseconds
INFO - Service request (GET) /images/ajax-loader.gif took 7
Milliseconds
INFO - Service request
Re: [Lift] Re: method call from out of nowhere
Hi Marius,
the method is called from an Actor, everytime a new order is created. I
did override def afterCreate in my LimitOrder MetaObject.
thanks.
In your code in what conditions joinOtherOrders gets called ?
Br's,
Marius
On Nov 29, 6:18 pm, Hannes hannes.flo...@gmx.li wrote:
Hi Tim, Hannes,
Firstly, I really, really wouldn't write your code like that...
Things of note:
- two defs inside defs... you usually wouldnt do this without a good reason
(like SHtml.submit(whatever _))
The two defs only make sence together, that's why I put them together in
one def. I think that's encapsulation... - dont use while loops. period.
you have a List[T], use foreach if you have a unit operation
Yeah, that's true. But the problem is, that my logic requires to stop
the iteration at some point. How I gonna do that with a foreach construct?
def joinAll(orders: List[LimitOrder]): Unit =
orders.foreach(order = {
// your logic here
})
You should look to remove a lot of that boiler plate... its looks very
javaish and mutable. Generally speaking, scala programmers avoid mutable
state like one would avoid bubonic plague.
Your totally right! Its mutable, cause its changing the state of my
objects. But that's necessary at this point. Before worrying about the
errors, id change your code, then take another look... its almost certainly
this bad organisation causing the issues.
I agree with you, that this is not the most beautiful code I every saw,
but I believe that the things you mentioned are not interfering with the
problem I'm facing. At least not because of a while-loop and some inner
local defs.
Cheers, Tim
thanks.
On 29 Nov 2009, at 15:24, Hannes wrote:
Hey Lifters,
I've some really strange things going on here. Please consider this
method definition. I've put alot of print debug statements between
other statements. There's a while-loop that only starts, when the given
list (orders) is not empty. It stops when done is set to true. So far,
so good. Than, have a look at the Lift output. I put in a comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method gets called again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , + orders.isEmpty= +
orders.isEmpty + , + done= + done)
if (this.lots.is == orders(i).lots.is){
println(case-1)
println(this= + this + , orders(i)= + orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is orders(i).lots.is){
println(case-2)
println(this= + this + , orders(i)= + orders(i))
orders(i).reduceLots(this.lots.is)
val newOrder = orders(i).cloneWith(this.lots.is)
newOrder.save
this.open(newOrder)
println(before done= + done)
done = true
println(after done= + done)
}
if (this.lots.is orders(i).lots.is){
println(case-3)
println(this= + this + , orders(i)= + orders(i))
this.reduceLots(orders(i).lots.is)
val newOrder = this.cloneWith(orders(i).lots.is)
newOrder.save
newOrder.open(orders(i
Re: [Lift] Re: method call from out of nowhere
Timothy Perrett schrieb:
The two defs only make sence together, that's why I put them together in
one def. I think that's encapsulation... - dont use while loops. period.
you have a List[T], use foreach if you have a unit operation
If you want encapsulation, because they only make sense together,
stick them in a trait - something about this inner def for your use
case feels very wrong.
Yeah, that's true. But the problem is, that my logic requires to stop
the iteration at some point. How I gonna do that with a foreach construct?
This is where I think you should evaluate your thinking. stoping
iteration is a java way of working... in scala i would typically
filter the list before iterating on it:
orders.filter(predicate).foreach(order = { ... })
That seems to be a lot neater - my point was more go look at the
other method options on List[T] rather than the code i show here is
the defacto way for your use case.
OK, I'm going to figure out, how to transform the while-loop into a
foreach
I agree with you, that this is not the most beautiful code I every saw,
but I believe that the things you mentioned are not interfering with the
problem I'm facing. At least not because of a while-loop and some inner
local defs.
Are you calling this code in a try, catch, finally block by any
chance?
In gets called from an Actor, everytime a new LimitOrder is created.
Tim
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Re: [Lift] method call from out of nowhere
Hi David,
In my LimitOrder Meta Object, I did:
override def afterCreate
to inform an Actor, everytime a new Order is created. The Actor than
calls the joinOtherOrders method.
#
I think I understand it now. Cause I'm creating new orders inside the
loop at some point. But still I don' t really know, why it gets called
after the old scope of joinOtherOrders ends...
thanks.
On Sun, Nov 29, 2009 at 7:24 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hey Lifters,
How is joinOtherOrders being invoked?
I've some really strange things going on here. Please consider this
method definition. I've put alot of print debug statements between
other statements. There's a while-loop that only starts, when the
given
list (orders) is not empty. It stops when done is set to true.
So far,
so good. Than, have a look at the Lift output. I put in a comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method gets called
again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , + orders.isEmpty= +
orders.isEmpty + , + done= + done)
if (this.lots.is http://this.lots.is ==
orders(i).lots.is http://lots.is){
println(case-1)
println(this= + this + , orders(i)= +
orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-2)
println(this= + this + , orders(i)= +
orders(i))
orders(i).reduceLots(this.lots.is
http://this.lots.is)
val newOrder = orders(i).cloneWith(this.lots.is
http://this.lots.is)
newOrder.save
this.open(newOrder)
println(before done= + done)
done = true
println(after done= + done)
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-3)
println(this= + this + , orders(i)= +
orders(i))
this.reduceLots(orders(i).lots.is http://lots.is)
val newOrder = this.cloneWith(orders(i).lots.is
http://lots.is)
newOrder.save
newOrder.open(orders(i))
}
i += 1
println(i += 1)
}
println(outside while)
}
def findLimitOrdersById: List[LimitOrder] =
this.findCandidates.map(x = LimitOrderMetaObj.findAll(
By(LimitOrderMetaObj.id, x)).head)
joinAll(findLimitOrdersById)
}
-- Lift Output
---
[INFO] Started Jetty Server
[INFO] Starting scanner at interval of 5 seconds.
INFO - Service request (GET)
/comet_request/54834680365/y7kybsmuyv1g took 64 Milliseconds
INFO - Service request (GET)
/comet_request/85319966940/y7kybsmuyv1g took 23 Milliseconds
INFO - Service request (GET) /favicon.ico took 86 Milliseconds
INFO - Service request (GET)
/comet_request/41521581405/y7kybsmuyv1g took 48 Milliseconds
INFO - Service request (GET)
/comet_request/93176242746/y7kybsmuyv1g took 7 Milliseconds
INFO - Service request (GET) /favicon.ico took 38 Milliseconds
INFO - Service request (GET) /favicon.ico took 5 Milliseconds
INFO - Service request (GET) / took 551 Milliseconds
INFO - Service request (GET)
/comet_request/81361316835/y7kybsmuyv1g took 9 Milliseconds
INFO - Service request (GET) /favicon.ico took 16 Milliseconds
INFO - Service request (GET) / took 61 Milliseconds
INFO - Service request (GET)
/comet_request/76898140873/y7kybsmuyv1g took 30 Milliseconds
INFO - Service request (GET)
/comet_request/e8jesgmo10oq/cometAjax.js took 14
Re: [Lift] method call from out of nowhere
ok, I'll do that. thanks. Or you can get stack trace information from Thread. I have a utility function getCaller that does a getStackTrace and then looks at the proper element of the array. (second, third? I forget) On Mon, Nov 30, 2009 at 12:30 AM, Alex Boisvert alex.boisv...@gmail.com wrote: An easy way to determine who's calling is simply to print the call stack by adding the following line in your method, (new Exception).printStackTrace -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] method call from out of nowhere
Hi David,
On Mon, Nov 30, 2009 at 12:11 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hi David,
In my LimitOrder Meta Object, I did:
override def afterCreate
to inform an Actor, everytime a new Order is created. The Actor
than calls the joinOtherOrders method.
#
I think I understand it now. Cause I'm creating new orders inside
the loop at some point. But still I don' t really know, why it
gets called after the old scope of joinOtherOrders ends...
Sounds to me like it's all in your application's logic. As others
have pointed out, Thread.dumpStack will let you figure out where
things are being called.
I think the biggest problem is, that its necessary in my logic to inform
the Actor, everytime a new order is created. This while-loop is an
exception to this rule. I don't think that it would be a good idea, to
change the behavior of how the Actor responds to messages, just to fix
this case, or? Or is there any chance to tell a new order NOT to inform
the Actor, even when its defined in def afterCreate ?
Also, you might want to use recursion and pattern matching to replace
your while loop (which is O(n^2) btw):
def dealWithList(in: List[Something]): Unit = in match {
case Nil = () // nothing left to do
case x :: _ if x.condition1 = x.doThing1
case x :: _ if x.condition2 = x.doThing2
case x :: xs if x.condition3 = x.doThing3 ; dealWithList(xs)
case _ :: xs = dealWithList(xs)
}
I thought about pattern matching as well, but in my first
implementation, I just wanted to get it running and change it
afterwards. Something else: I think recursion is slower than a
while-loop as long as its not tail recursive, or?
thanks.
You have the same semantics of a while loop with the ability to break
out, but the code is about your logic rather than about looping.
thanks.
On Sun, Nov 29, 2009 at 7:24 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hey Lifters,
How is joinOtherOrders being invoked?
I've some really strange things going on here. Please
consider this
method definition. I've put alot of print debug statements
between
other statements. There's a while-loop that only starts, when
the given
list (orders) is not empty. It stops when done is set to
true. So far,
so good. Than, have a look at the Lift output. I put in a
comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method gets
called again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , + orders.isEmpty= +
orders.isEmpty + , + done= + done)
if (this.lots.is http://this.lots.is ==
orders(i).lots.is http://lots.is){
println(case-1)
println(this= + this + , orders(i)= +
orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-2)
println(this= + this + , orders(i)= +
orders(i))
orders(i).reduceLots(this.lots.is
http://this.lots.is)
val newOrder =
orders(i).cloneWith(this.lots.is http://this.lots.is)
newOrder.save
this.open(newOrder)
println(before done= + done)
done = true
println(after done= + done)
}
if (this.lots.is http://this.lots.is
orders(i).lots.is http://lots.is){
println(case-3)
println(this= + this + , orders(i)= +
orders(i))
this.reduceLots(orders(i).lots.is
http://lots.is)
val newOrder
Re: [Lift] Sitemap + Menu Names + Change Order
Hi Heiko, thanks for the quick and helpful answer! The renaming was quite easy, but what do I've to write inside CRUDify.menus? thanks. Hannes, 2009/11/29 Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li I couldn't find anything about how to change a menu name, that is generated from CRUDify. Overwrite CRUDify.createMenuName, etc. Furthermore, I want to change the internal order of CRUDify menus. I believe that its more natural to use, when the create item comes before the list item. Overwrite CRUDify.menus Heiko My job: weiglewilczek.com http://weiglewilczek.com My blog: heikoseeberger.name http://heikoseeberger.name Follow me: twitter.com/hseeberger http://twitter.com/hseeberger OSGi on Scala: scalamodules.org http://scalamodules.org Lift, the simply functional web framework: liftweb.net http://liftweb.net -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Sitemap + Menu Names + Change Order
Thanks! It was the box again, I'm still not really comfortable in getting things out of it Hi Hannes, 2009/11/29 Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li thanks for the quick and helpful answer! You're welcome ;-) The renaming was quite easy, but what do I've to write inside CRUDify.menus? Please take a look at the source code (CRUDify.scala): def menus: List[Menu] = List(showAllMenuLoc, createMenuLoc, viewMenuLoc, editMenuLoc, deleteMenuLoc).flatMap(x = x) Overwrite it as you need, e.g. (create and showAll swapped): def menus: List[Menu] = List(createMenuLoc, showAllMenuLoc, viewMenuLoc, editMenuLoc, deleteMenuLoc).flatMap(x = x) Heiko My job: weiglewilczek.com http://weiglewilczek.com My blog: heikoseeberger.name http://heikoseeberger.name Follow me: twitter.com/hseeberger http://twitter.com/hseeberger OSGi on Scala: scalamodules.org http://scalamodules.org Lift, the simply functional web framework: liftweb.net http://liftweb.net -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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] method call from out of nowhere
Hey Lifters,
I've some really strange things going on here. Please consider this
method definition. I've put alot of print debug statements between
other statements. There's a while-loop that only starts, when the given
list (orders) is not empty. It stops when done is set to true. So far,
so good. Than, have a look at the Lift output. I put in a comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method gets called again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , + orders.isEmpty= + orders.isEmpty +
, + done= + done)
if (this.lots.is == orders(i).lots.is){
println(case-1)
println(this= + this + , orders(i)= + orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is orders(i).lots.is){
println(case-2)
println(this= + this + , orders(i)= + orders(i))
orders(i).reduceLots(this.lots.is)
val newOrder = orders(i).cloneWith(this.lots.is)
newOrder.save
this.open(newOrder)
println(before done= + done)
done = true
println(after done= + done)
}
if (this.lots.is orders(i).lots.is){
println(case-3)
println(this= + this + , orders(i)= + orders(i))
this.reduceLots(orders(i).lots.is)
val newOrder = this.cloneWith(orders(i).lots.is)
newOrder.save
newOrder.open(orders(i))
}
i += 1
println(i += 1)
}
println(outside while)
}
def findLimitOrdersById: List[LimitOrder] =
this.findCandidates.map(x = LimitOrderMetaObj.findAll(
By(LimitOrderMetaObj.id, x)).head)
joinAll(findLimitOrdersById)
}
-- Lift Output
---
[INFO] Started Jetty Server
[INFO] Starting scanner at interval of 5 seconds.
INFO - Service request (GET) /comet_request/54834680365/y7kybsmuyv1g took 64
Milliseconds
INFO - Service request (GET) /comet_request/85319966940/y7kybsmuyv1g took 23
Milliseconds
INFO - Service request (GET) /favicon.ico took 86 Milliseconds
INFO - Service request (GET) /comet_request/41521581405/y7kybsmuyv1g took 48
Milliseconds
INFO - Service request (GET) /comet_request/93176242746/y7kybsmuyv1g took 7
Milliseconds
INFO - Service request (GET) /favicon.ico took 38 Milliseconds
INFO - Service request (GET) /favicon.ico took 5 Milliseconds
INFO - Service request (GET) / took 551 Milliseconds
INFO - Service request (GET) /comet_request/81361316835/y7kybsmuyv1g took 9
Milliseconds
INFO - Service request (GET) /favicon.ico took 16 Milliseconds
INFO - Service request (GET) / took 61 Milliseconds
INFO - Service request (GET) /comet_request/76898140873/y7kybsmuyv1g took 30
Milliseconds
INFO - Service request (GET) /comet_request/e8jesgmo10oq/cometAjax.js took 14
Re: [Lift] method call from out of nowhere
Hi Tim,
Hannes,
Firstly, I really, really wouldn't write your code like that...
Things of note:
- two defs inside defs... you usually wouldnt do this without a good reason
(like SHtml.submit(whatever _))
The two defs only make sence together, that's why I put them together in
one def. I think that's encapsulation...
- dont use while loops. period. you have a List[T], use foreach if you have a
unit operation
Yeah, that's true. But the problem is, that my logic requires to stop
the iteration at some point. How I gonna do that with a foreach construct?
def joinAll(orders: List[LimitOrder]): Unit =
orders.foreach(order = {
// your logic here
})
You should look to remove a lot of that boiler plate... its looks very
javaish and mutable. Generally speaking, scala programmers avoid mutable
state like one would avoid bubonic plague.
Your totally right! Its mutable, cause its changing the state of my
objects. But that's necessary at this point.
Before worrying about the errors, id change your code, then take another
look... its almost certainly this bad organisation causing the issues.
I agree with you, that this is not the most beautiful code I every saw,
but I believe that the things you mentioned are not interfering with the
problem I'm facing. At least not because of a while-loop and some inner
local defs.
Cheers, Tim
thanks.
On 29 Nov 2009, at 15:24, Hannes wrote:
Hey Lifters,
I've some really strange things going on here. Please consider this
method definition. I've put alot of print debug statements between
other statements. There's a while-loop that only starts, when the given
list (orders) is not empty. It stops when done is set to true. So far,
so good. Than, have a look at the Lift output. I put in a comment,
pointing out where the program runs into the while loop.
What really shocks me, are these print statements :
before done=false
after done=true
i += 1
outside while
INFO - Service request (GET) / took 121 Milliseconds
start of joinAll!
The loop ends with outside while and than the method gets called again
immediately! But who calls it? I don't
Any ideas?
thanks.
method definition
--
def joinOtherOrders: Unit = {
def joinAll(orders: List[LimitOrder]) = {
println(start of joinAll!)
var done = false
var i = 0
while (!orders.isEmpty !done) {
println(i= + i + , + orders.isEmpty= + orders.isEmpty
+ , + done= + done)
if (this.lots.is == orders(i).lots.is){
println(case-1)
println(this= + this + , orders(i)= + orders(i))
this.open(orders(i))
done = true
}
if (this.lots.is orders(i).lots.is){
println(case-2)
println(this= + this + , orders(i)= + orders(i))
orders(i).reduceLots(this.lots.is)
val newOrder = orders(i).cloneWith(this.lots.is)
newOrder.save
this.open(newOrder)
println(before done= + done)
done = true
println(after done= + done)
}
if (this.lots.is orders(i).lots.is){
println(case-3)
println(this= + this + , orders(i)= + orders(i))
this.reduceLots(orders(i).lots.is)
val newOrder = this.cloneWith(orders(i).lots.is)
newOrder.save
newOrder.open(orders(i))
}
i += 1
println(i += 1)
}
println(outside while)
}
def findLimitOrdersById: List[LimitOrder] =
this.findCandidates.map(x = LimitOrderMetaObj.findAll(
By(LimitOrderMetaObj.id, x)).head)
joinAll(findLimitOrdersById)
}
-- Lift Output
---
[INFO] Started Jetty Server
[INFO] Starting scanner at interval of 5 seconds
Re: [Lift] Another List XYZ Menu Entry
I meant, that I had general problems to find a way how to do it, not talking about the Lift way to do it. So I think I need a new XHTML page where I call a snippet method, that displays the table. Then, from the menu item, I just link to that new page? Would that be the right way? thanks. On Mon, Nov 16, 2009 at 8:51 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi Lifters, I need a new menu entry that displays a table similar to the one, that is shown by the CRUDify List XYZ link. But I need to display different fields without the chance to edit or delete the items. So basically, just a simple table. Later on, some Comet stuff would be nice, to see changes on the table immediately. I've tried to add a new menu entry in Boot.scala, but I don't really know how/where the XML should come from What XML goes into a menu item? 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 mailto:liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~--- -- 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 -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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=. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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=.
Re: [Lift] Another List XYZ Menu Entry
Maybe you could give a one liner, showing how to write the menu item in Boot.scala. thanks. On Fri, Nov 20, 2009 at 6:26 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: I meant, that I had general problems to find a way how to do it, not talking about the Lift way to do it. So I think I need a new XHTML page where I call a snippet method, that displays the table. Then, from the menu item, I just link to that new page? Would that be the right way? I'm not sure what you're asking. You could do it with an xhtml page, you could also build the table in code, like the CRUDify stuff does. Either way works, if I understand you correctly. thanks. On Mon, Nov 16, 2009 at 8:51 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi Lifters, I need a new menu entry that displays a table similar to the one, that is shown by the CRUDify List XYZ link. But I need to display different fields without the chance to edit or delete the items. So basically, just a simple table. Later on, some Comet stuff would be nice, to see changes on the table immediately. I've tried to add a new menu entry in Boot.scala, but I don't really know how/where the XML should come from What XML goes into a menu item? 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 mailto:liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~--- -- 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 -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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=. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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=.
Re: [Lift] Another List XYZ Menu Entry
I read some stuff of chapter five before, but this was the extra hint, that I needed... thanks! On Fri, Nov 20, 2009 at 7:07 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Maybe you could give a one liner, showing how to write the menu item in Boot.scala. A menu entry looks something like: Menu( Loc(helpHome, (help :: ::Nil) - true, Help)) The list ( help :: :: Nil) is the path to the the page. In this case the - True says that everything underneath help is ok. So you could do path :: to :: my :: page :: Nil and - false There's a great description in section 5 of the Exploring lift PDF if you need more help. thanks. On Fri, Nov 20, 2009 at 6:26 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: I meant, that I had general problems to find a way how to do it, not talking about the Lift way to do it. So I think I need a new XHTML page where I call a snippet method, that displays the table. Then, from the menu item, I just link to that new page? Would that be the right way? I'm not sure what you're asking. You could do it with an xhtml page, you could also build the table in code, like the CRUDify stuff does. Either way works, if I understand you correctly. thanks. On Mon, Nov 16, 2009 at 8:51 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi Lifters, I need a new menu entry that displays a table similar to the one, that is shown by the CRUDify List XYZ link. But I need to display different fields without the chance to edit or delete the items. So basically, just a simple table. Later on, some Comet stuff would be nice, to see changes on the table immediately. I've tried to add a new menu entry in Boot.scala, but I don't really know how/where the XML should come from What XML goes into a menu item? 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 mailto:liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~--- -- 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 -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- James A Barrows -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- 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 mailto:liftweb@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com mailto:liftweb%2bunsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=. -- James A Barrows -- You received this message
[Lift] Another List XYZ Menu Entry
Hi Lifters, I need a new menu entry that displays a table similar to the one, that is shown by the CRUDify List XYZ link. But I need to display different fields without the chance to edit or delete the items. So basically, just a simple table. Later on, some Comet stuff would be nice, to see changes on the table immediately. I've tried to add a new menu entry in Boot.scala, but I don't really know how/where the XML should come from 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] Re: New Milestone coming soon
Hi David, I read your response, but I didn't replied. Sorry. I've to figure out, what causes my problem. Seems like the CometActor update or something doesn't work properly, in M6 it did. But I don't really know, yet. thanks. On Thu, Nov 12, 2009 at 11:37 AM, Hannes hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote: Hi David, I wrote you a message about the CometActor received shutdown thing. I'm almost sure, that this is related to M7, but I've no idea, why or what. Did you read my response? This message is normal and expected. kind regards Tobias Folks, There are two critical issues with M7: * Issue 164 http://github.com/dpp/liftweb/issues#issue/164 JSON/Ajax messages do not carry Notices back to the client. * The Session manager is not initialized properly. Basically, this means that sessions will be expired by the web container, but not by Lift and GUIDs that map to functions on the server side are not removed until the session is terminated. We're planning to do an M7.1 release later this week (probably Friday). If there are other *critical* defects (stuff that means you can't use M7 in production), please speak now. 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 -- 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 --~--~-~--~~~---~--~~ 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: New Milestone coming soon
Hi David, I wrote you a message about the CometActor received shutdown thing. I'm almost sure, that this is related to M7, but I've no idea, why or what. kind regards Tobias Folks, There are two critical issues with M7: * Issue 164 http://github.com/dpp/liftweb/issues#issue/164 JSON/Ajax messages do not carry Notices back to the client. * The Session manager is not initialized properly. Basically, this means that sessions will be expired by the web container, but not by Lift and GUIDs that map to functions on the server side are not removed until the session is terminated. We're planning to do an M7.1 release later this week (probably Friday). If there are other *critical* defects (stuff that means you can't use M7 in production), please speak now. 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 --~--~-~--~~~---~--~~ 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] not found: Full, Empty, Box
Hey Lifters, I just updated to scala 2.7.7 and lift 1.1-M7. Now I get the above compilation errors. I couldn't find any documentation where Full, Empty and Box are located now...sorry to bother you with this 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] java.sql.SQLException | ERROR 07000
Hi Lifters, I encountered a problem after I started tried to test my project today. I'm almost sure that this error didn't occured before..I also updated to 1.1-M6 but the error is still there. Do I've to do some other update? I think the problem is related to some actor stuff.??? Here's some console output: - INFO - Service request (GET) /limitorder/list took 263 Milliseconds INFO - Service request (GET) /images/ajax-loader.gif took 2 Milliseconds INFO - Service request (GET) /user_mgt/logout took 21 Milliseconds INFO - The CometActor org.tobster.comet.mar...@221f81 Received Shutdown INFO - Service request (GET) / took 93 Milliseconds INFO - Service request (GET) /comet_request/1bebfbc2v6fa9/cometAjax.js took 3 Milliseconds INFO - Service request (GET) /images/ajax-loader.gif took 2 Milliseconds INFO - Service request (GET) /comet_request/85510940001/1bebfbc2v6fa9 took 16 Milliseconds INFO - Service request (GET) /comet_request/60721905658/1bebfbc2v6fa9 took 8714 Milliseconds INFO - Service request (GET) /user_mgt/sign_up took 794 Milliseconds INFO - Service request (GET) /images/ajax-loader.gif took 1 Milliseconds INFO - Service request (POST) /user_mgt/sign_up took 14 Milliseconds INFO - Service request (GET) / took 91 Milliseconds INFO - Service request (GET) /images/ajax-loader.gif took 1 Milliseconds INFO - Service request (GET) /comet_request/36437894169/1bebfbc2v6fa9 took 8400 Milliseconds INFO - Service request (GET) /limitorder/create took 138 Milliseconds INFO - Service request (GET) /images/ajax-loader.gif took 3 Milliseconds INFO - Service request (POST) /limitorder/create took 32 Milliseconds java.sql.SQLException: At least one parameter to the current statement is uninitialized. at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source) at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source) at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source) at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source) at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source) at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(Unknown Source) at net.liftweb.mapper.MetaMapper$$anonfun$14$$anonfun$15.apply(MetaMapper.scala:653) at net.liftweb.mapper.MetaMapper$$anonfun$14$$anonfun$15.apply(MetaMapper.scala:636) at net.liftweb.mapper.DB$$anonfun$runPreparedStatement$1.apply(DB.scala:375) at net.liftweb.mapper.DB$$anonfun$runPreparedStatement$1.apply(DB.scala:372) at net.liftweb.util.TimeHelpers$class.calcTime(TimeHelpers.scala:241) at net.liftweb.util.Helpers$.calcTime(Helpers.scala:29) at net.liftweb.mapper.DB$.runPreparedStatement(DB.scala:372) at net.liftweb.mapper.DB$.prepareStatement(DB.scala:316) at net.liftweb.mapper.MetaMapper$$anonfun$14.apply(MetaMapper.scala:635) at net.liftweb.mapper.MetaMapper$$anonfun$14.apply(MetaMapper.scala:630) at net.liftweb.mapper.DB$.use(DB.scala:389) at net.liftweb.mapper.MetaMapper$class.save(MetaMapper.scala:629) at org.tobster.model.LimitOrderMetaObj$.save(LimitOrder.scala:201) at net.liftweb.mapper.Mapper$$anonfun$save$1.apply(Mapper.scala:86) at net.liftweb.mapper.Mapper$$anonfun$save$1.apply(Mapper.scala:86) at net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65) at net.liftweb.mapper.Safe$.runSafe(Safe.scala:44) at net.liftweb.mapper.Mapper$class.runSafe(Mapper.scala:52) at org.tobster.model.LimitOrder.runSafe(LimitOrder.scala:21) at net.liftweb.mapper.Mapper$class.save(Mapper.scala:85) at org.tobster.model.LimitOrder.save(LimitOrder.scala:21) at org.tobster.comet.MarketServer$.doSecurityReservation(Market.scala:44) at org.tobster.comet.MarketServer$$anonfun$highPriority$1.apply(Market.scala:30) at org.tobster.comet.MarketServer$$anonfun$highPriority$1.apply(Market.scala:28) at scala.PartialFunction$$anon$1.apply(PartialFunction.scala:37) at scala.PartialFunction$$anon$1.apply(PartialFunction.scala:37) at scala.PartialFunction$$anon$1.apply(PartialFunction.scala:37) at scala.actors.Reaction.run(Reaction.scala:78) at scala.actors.FJTask$Wrap.run(Unknown Source) at scala.actors.FJTaskRunner.scanWhileIdling(Unknown Source) at scala.actors.FJTaskRunner.run(Unknown Source) Caused by: java.sql.SQLException: At least one parameter to the current statement is uninitialized. at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source) at
[Lift] Re: java.sql.SQLException | ERROR 07000
OK, thanks. I'll have a look! On Tue, Oct 13, 2009 at 8:27 AM, Hannes hannes.flo...@gmx.li wrote: I'm almost sure that this error didn't occured before..I also updated to 1.1-M6 but the error is still there. Do I've to do some other update? I think the problem is related to some actor stuff.??? This is a long shot, but I think I saw something similar and it turned out I had an incorrect DB.addLogFunc in my Boot. If you have one, maybe comment it out and see if you get the same behaviour. It doesn't really look related from the stack trace, but I thought I'd mention it just in case... Richard --~--~-~--~~~---~--~~ 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: Create the website and all the links are Https ?
You can use Apache to secure your page with HTTPS. Hi all, How can we create the website and all the links are https? Just like: www.xing.com That all of the operations and communications are used https. Thanks very much ! Cheers, Neil --~--~-~--~~~---~--~~ 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: CRUDify trait in 1.1-SNAPSHOT
I've got another problem with CRUDify since I updated to release 1.0.2
(in M3 everything was fine).
error: value showAllMenuLocParams is not a member of LimitOrder with
net.liftweb.mapper.LongKeyedMetaMapper[...LimitOrder] with
net.liftweb.mapper.CRUDify[long, LimitOrder] with ScalaObject
override def showAllMenuLocParams = :: super.showAllMenuLocParams
I get the same error with createMenuLocParams, too.
thanks.
On Wed, Sep 9, 2009 at 11:30 PM, XiaomingZheng
xiaomingzhen...@gmail.com mailto:xiaomingzhen...@gmail.com wrote:
really~~~
Yes. That's why I changed the self-type... because people kept mixing
CRUDify into the mapper class, not the metamapper class.
On Sep 10, 2:21 pm, Naftoli Gugenheim naftoli...@gmail.com
mailto:naftoli...@gmail.com wrote:
You're supposed to mix CRUDify in to your singleton object, not
the class.
-
XiaomingZhengxiaomingzhen...@gmail.com
mailto:xiaomingzhen...@gmail.com wrote:
when i knew the 1.1 M5 has been published, i updated the pom.xml
of my
liftapp project and recomplie it. And i got an error about CRUDify:
self-type com.thesamegoal.simpleforum.model.Forum does not
conform to
net.liftweb.mapper.CRUDify
[Long,com.thesamegoal.simpleforum.model.Forum]'s selftype
net.liftweb.mapper.CRUDify
[Long,com.thesamegoal.simpleforum.model.Forum] with
com.thesamegoal.simpleforum.model.Forum with
net.liftweb.mapper.KeyedMetaMapper
[Long,com.thesamegoal.simpleforum.model.Forum]
my Forum class was defined like this:
package com.thesamegoal.simpleforum.model
class Forum extends LongKeyedMapper[Forum] with IdPK with CRUDify
[Long, Forum] {
...
}
so i check the lift framework framework, in 1.0 version, CRUDify is
defined like this:
trait CRUDify[KeyType, CrudType : KeyedMapper[KeyType, CrudType]]
extends KeyedMetaMapper[KeyType, CrudType] {
self: CrudType =
...}
and 1.1 CRUDify is like this:
trait CRUDify[KeyType, CrudType : KeyedMapper[KeyType, CrudType]] {
self: CrudType with KeyedMetaMapper[KeyType, CrudType] =
...
}
this change forced me to modify my Forum class to this:
class Forum extends LongKeyedMapper[Forum] with IdPK with
LongKeyedMetaMapper[forum] with CRUDify[Long, Forum]
and got the compile process succeed.
but why lift version 1.1 make this change? i feel that old fashion
defining model class with CRUDify trait is more comfortable and
reasonable, it's simple and intuitive
--
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: CRUDify trait in 1.1-SNAPSHOT
ups!
thanks anyway
On Fri, Sep 11, 2009 at 6:01 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
I've got another problem with CRUDify since I updated to release 1.0.2
(in M3 everything was fine).
Release 1.0.2 is older than 1.1-M3. You downgraded to release 1.0.2.
Some features that are available in the 1.1 Milestones are not
available in the 1.0 maintenance release branch.
error: value showAllMenuLocParams is not a member of
LimitOrder with
net.liftweb.mapper.LongKeyedMetaMapper[...LimitOrder] with
net.liftweb.mapper.CRUDify[long, LimitOrder] with ScalaObject
override def showAllMenuLocParams = :: super.showAllMenuLocParams
I get the same error with createMenuLocParams, too.
thanks.
On Wed, Sep 9, 2009 at 11:30 PM, XiaomingZheng
xiaomingzhen...@gmail.com mailto:xiaomingzhen...@gmail.com
mailto:xiaomingzhen...@gmail.com
mailto:xiaomingzhen...@gmail.com wrote:
really~~~
Yes. That's why I changed the self-type... because people kept
mixing
CRUDify into the mapper class, not the metamapper class.
On Sep 10, 2:21 pm, Naftoli Gugenheim naftoli...@gmail.com
mailto:naftoli...@gmail.com
mailto:naftoli...@gmail.com mailto:naftoli...@gmail.com
wrote:
You're supposed to mix CRUDify in to your singleton
object, not
the class.
-
XiaomingZhengxiaomingzhen...@gmail.com
mailto:xiaomingzhen...@gmail.com
mailto:xiaomingzhen...@gmail.com
mailto:xiaomingzhen...@gmail.com wrote:
when i knew the 1.1 M5 has been published, i updated the
pom.xml
of my
liftapp project and recomplie it. And i got an error about
CRUDify:
self-type com.thesamegoal.simpleforum.model.Forum does not
conform to
net.liftweb.mapper.CRUDify
[Long,com.thesamegoal.simpleforum.model.Forum]'s selftype
net.liftweb.mapper.CRUDify
[Long,com.thesamegoal.simpleforum.model.Forum] with
com.thesamegoal.simpleforum.model.Forum with
net.liftweb.mapper.KeyedMetaMapper
[Long,com.thesamegoal.simpleforum.model.Forum]
my Forum class was defined like this:
package com.thesamegoal.simpleforum.model
class Forum extends LongKeyedMapper[Forum] with IdPK with
CRUDify
[Long, Forum] {
...
}
so i check the lift framework framework, in 1.0 version,
CRUDify is
defined like this:
trait CRUDify[KeyType, CrudType : KeyedMapper[KeyType,
CrudType]]
extends KeyedMetaMapper[KeyType, CrudType] {
self: CrudType =
...}
and 1.1 CRUDify is like this:
trait CRUDify[KeyType, CrudType : KeyedMapper[KeyType,
CrudType]] {
self: CrudType with KeyedMetaMapper[KeyType, CrudType] =
...
}
this change forced me to modify my Forum class to this:
class Forum extends LongKeyedMapper[Forum] with IdPK with
LongKeyedMetaMapper[forum] with CRUDify[Long, Forum]
and got the compile process succeed.
but why lift version 1.1 make this change? i feel that old
fashion
defining model class with CRUDify trait is more
comfortable and
reasonable, it's simple and intuitive
--
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
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[Lift] strange behaviour of findAll(By(...))
Why does the By method not accept two integers to compare? See erro
belowthanks!
/home/wacky/NetBeansProjects/virtualMarket/src/main/scala/org/tobster/comet/Market.scala:83:
error: overloaded method value apply with alternatives [O :
net.liftweb.mapper.Mapper[O],T,Q :
net.liftweb.mapper.KeyedMapper[T,Q]](net.liftweb.mapper.MappedForeignKey[T,O,Q],net.liftweb.util.Box[Q])net.liftweb.mapper.Cmp[O,T]
and [O : net.liftweb.mapper.Mapper[O],T,Q :
net.liftweb.mapper.KeyedMapper[T,Q]](net.liftweb.mapper.MappedForeignKey[T,O,Q],Q)net.liftweb.mapper.Cmp[O,T]
and [O :
net.liftweb.mapper.Mapper[O],T,U](net.liftweb.mapper.MappedField[T,O],U)(implicit
(U) = T)net.liftweb.mapper.Cmp[O,T] cannot be applied to (Int,Int)
def createUpdate =
NewOrders(LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status.id,
1)).toList)
status is an enumeration type.
object Color extends Enumeration {
val Red = Value(RED)
val Blue = Value(BLUE)
}
Its initialized like this:
var status: Color.Value = Color.Red
So why is it not possible to use it inside the By method?
This doesn't work neither, similar error message:
findAll(By(LimitOrderMetaObj.status, Color(1)))
thanks
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[Lift] Re: find, set and save
Hi Dave,
Thanks for your answer and sorry for the late reply.
In the first filter line... do you just want to filter out the
LimitOrders that do not have the same tradeType foreign key reference
as the FK of the parameter that you pass in?
Yes, that's part of the filtering, but I need to do more stuff.
Can you post the model opens (the LimitOrder and the other stuff) as
well as the logic?
I gonna do some more thinking about the logic, and paste the source later.
For example,
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,remainingOrders(i).id)).map(_.status.set(OPEN))
openOr 0L
I'm not sure why you're doing a map and an openOr 0L... you're not
returning an expression.
This was the only way I knew to do that..but probably the wrong
one.8-)
Also, I'm not sure why you are loading an instance out of the RDBMS in
order to to set the status to OPEN and then just discard the
instance. Does the set method on the status open have some side
effect that you've coded?
It was the first approach to implement the logic and since I'm still not
very close with Lift, some ugly code came out.
If you want to load a bunch of records, update fields on those
records, and save the records, I'd like to suggest the following code:
That's really helpful, I try to use that to get a better implementation!
class Dog extends LongKeyedMapper[Dog] with IdPK {
def getSingleton = Dog
object name extends MappedPoliteString(this, 128)
object weight extends MappedInt(this)
}
object Dog extends Dog with LongKeyedMetaMapper[Dog]
class MyStuff extends LongKeyedMapper[MyStuff] with IdPK {
def getSingleton = MyStuff
object info extends MappedString(this, 128)
object count extends MappedInt(this)
object dog extends MappedLongForeignKey(this, Dog)
}
object MyStuff extends MyStuff with LongKeyedMetaMapper[MyStuff] {
def mutate(in: MyStuff) {
for {
// find all the items where info = 'NEW' and dog != the value of
in's dog field
item - MyStuff.findAll(By(MyStuff.info, NEW),
NotBy(MyStuff.dog, in.dog))
// increment the count field, update the info field and save
} item.count(item.count + 1).info(Not so NEW).save
}
}
thanks!
On Wed, Jul 22, 2009 at 4:05 PM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
I kind of found the problem. So far, it has nothing to do with save or
anything like that. The problem is that this line:
val newOrders = LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = o2.tradeType.name
http://o2.tradeType.name != o1.tradeType.name
http://o1.tradeType.name)
does not compare the name of the tradetype (TradeType has an own
name field) in the filter method, instead name returns tradetype
(is this the object name?). The thing is, because its a foreign key
reference and as you told me, it needs to be accessed via
o.tradeType.obj.map(_.name.is http://name.is) openOr
But now, when I want to compare two of those TradeType.name field
(which
are normal strings) I don't really know how to do it. I tried
something
like that, but it doesn't work:
val newOrders = LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = {o2.tradeType.obj.map(_.name.is
http://name.is) openOr }
!= {o1.tradeType.obj.map(_.name.is http://name.is) openOr )
thanks.
Howdy,
You can save some memory by using findMap:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findMap(By(LimitOrderMetaObj.status, NEW)){o2 =
Full(o2).filter(o2.tradeType.name http://o2.tradeType.name
http://o2.tradetype.name/ !=
o1.tradeType.name http://o1.tradeType.name
http://o1.tradetype.name/)}
findMap applies the filtering operation as each row is pulled
from the
RDBMS... so you'll have fewer objects in memory.
In terms of the remaining logic... I'm a little lost in your code...
can you describe the logic? What gets updated under which
conditions?
On Wed, Jul 22, 2009 at 5:35 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote:
Hi Lifters,
It seems like I'm having problems to modify items that are
already in
the database. What I do is, first find the item, then set a new
value to
it and then save it. So far so good, or?
Because its a expensive filter process to find those items to
modify, I
made a local copy of the sub-list that contains the most
interesting
items. This sub-list is processed further on and when I
finally know
[Lift] find, set and save
Hi Lifters,
It seems like I'm having problems to modify items that are already in
the database. What I do is, first find the item, then set a new value to
it and then save it. So far so good, or?
Because its a expensive filter process to find those items to modify, I
made a local copy of the sub-list that contains the most interesting
items. This sub-list is processed further on and when I finally know
which items to modify, I look those ones up in the database again and
set the values. I hope it makes sence...
thanks
Here's the code:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = o2.tradeType.name != o1.tradeType.name)
def decideByTradeType: List[LimitOrder] = {
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from lowest to highest marketPoint */
if (o1.tradeType.name == BUY)
newOrders.filter(o2 = o2.marketPoint.is =
o1.marketPoint.is).sort((s, t) = s.marketPoint.is t.marketPoint.is)
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from highest to lowest marketPoint */
else //because there are only two different types! Its the same
as: if (o1.tradeType.name == SELL)
newOrders.filter(o2 = o2.marketPoint.is =
o1.marketPoint.is).sort((s, t) = s.marketPoint.is t.marketPoint.is)
}
var i = 0
var done = false
val remainingOrders = decideByTradeType
while (i remainingOrders.length !done) {
if (remainingOrders(i).lots == o1.lots) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id)).map(_.save) openOr 0L
done = true
}
if (remainingOrders(i).lots.is o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id)).map(_.lots.set(o1.lots.is - remainingOrders(i).lots.is)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id)).map(_.save) openOr 0L
}
if (remainingOrders(i).lots.is o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.lots.set(remainingOrders(i).lots.is -
o1.lots.is)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
done = true
}
i = i + 1
}
}
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[Lift] Re: find, set and save
Hi David,
Thanks for that trick! But until there I had no problems.is code ok,
that modifies and saves the model? Cause it feels like the changes are
not saved.
thanks
Tobias
Howdy,
You can save some memory by using findMap:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findMap(By(LimitOrderMetaObj.status, NEW)){o2 =
Full(o2).filter(o2.tradeType.name http://o2.tradetype.name/ !=
o1.tradeType.name http://o1.tradetype.name/)}
findMap applies the filtering operation as each row is pulled from the
RDBMS... so you'll have fewer objects in memory.
In terms of the remaining logic... I'm a little lost in your code...
can you describe the logic? What gets updated under which conditions?
On Wed, Jul 22, 2009 at 5:35 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hi Lifters,
It seems like I'm having problems to modify items that are already in
the database. What I do is, first find the item, then set a new
value to
it and then save it. So far so good, or?
Because its a expensive filter process to find those items to
modify, I
made a local copy of the sub-list that contains the most interesting
items. This sub-list is processed further on and when I finally know
which items to modify, I look those ones up in the database again and
set the values. I hope it makes sence...
thanks
Here's the code:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = o2.tradeType.name
http://o2.tradeType.name != o1.tradeType.name
http://o1.tradeType.name)
def decideByTradeType: List[LimitOrder] = {
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from lowest to highest marketPoint */
if (o1.tradeType.name http://o1.tradeType.name == BUY)
newOrders.filter(o2 = o2.marketPoint.is
http://o2.marketPoint.is =
o1.marketPoint.is http://o1.marketPoint.is).sort((s, t) =
s.marketPoint.is http://s.marketPoint.is t.marketPoint.is
http://t.marketPoint.is)
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from highest to lowest marketPoint */
else //because there are only two different types! Its the same
as: if (o1.tradeType.name http://o1.tradeType.name == SELL)
newOrders.filter(o2 = o2.marketPoint.is
http://o2.marketPoint.is =
o1.marketPoint.is http://o1.marketPoint.is).sort((s, t) =
s.marketPoint.is http://s.marketPoint.is t.marketPoint.is
http://t.marketPoint.is)
}
var i = 0
var done = false
val remainingOrders = decideByTradeType
while (i remainingOrders.length !done) {
if (remainingOrders(i).lots == o1.lots) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
done = true
}
if (remainingOrders(i).lots.is http://lots.is
o1.lots.is http://o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.lots.set(o1.lots.is
http://o1.lots.is - remainingOrders(i).lots.is
http://lots.is)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
}
if (remainingOrders(i).lots.is http://lots.is
o1.lots.is http://o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.lots.set(remainingOrders(i).lots.is
http://lots.is -
o1.lots.is http://o1.lots.is)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
[Lift] Re: find, set and save
I got a compiler error when I tried to compile:
val newOrders = LimitOrderMetaObj.findMap(By(LimitOrderMetaObj.status,
NEW)){o2 = Full(o2).filter(o2.tradeType.name != o1.tradeType.name)}
-
error: type mismatch;
found : Boolean
required: (org.tobster.model.LimitOrder) = Boolean
val newOrders =
LimitOrderMetaObj.findMap(By(LimitOrderMetaObj.status, NEW)){o2 =
Full(o2).filter(o2.tradeType.name != o1.tradeType.name)}
Howdy,
You can save some memory by using findMap:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findMap(By(LimitOrderMetaObj.status, NEW)){o2 =
Full(o2).filter(o2.tradeType.name http://o2.tradetype.name/ !=
o1.tradeType.name http://o1.tradetype.name/)}
findMap applies the filtering operation as each row is pulled from the
RDBMS... so you'll have fewer objects in memory.
In terms of the remaining logic... I'm a little lost in your code...
can you describe the logic? What gets updated under which conditions?
On Wed, Jul 22, 2009 at 5:35 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hi Lifters,
It seems like I'm having problems to modify items that are already in
the database. What I do is, first find the item, then set a new
value to
it and then save it. So far so good, or?
Because its a expensive filter process to find those items to
modify, I
made a local copy of the sub-list that contains the most interesting
items. This sub-list is processed further on and when I finally know
which items to modify, I look those ones up in the database again and
set the values. I hope it makes sence...
thanks
Here's the code:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = o2.tradeType.name
http://o2.tradeType.name != o1.tradeType.name
http://o1.tradeType.name)
def decideByTradeType: List[LimitOrder] = {
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from lowest to highest marketPoint */
if (o1.tradeType.name http://o1.tradeType.name == BUY)
newOrders.filter(o2 = o2.marketPoint.is
http://o2.marketPoint.is =
o1.marketPoint.is http://o1.marketPoint.is).sort((s, t) =
s.marketPoint.is http://s.marketPoint.is t.marketPoint.is
http://t.marketPoint.is)
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from highest to lowest marketPoint */
else //because there are only two different types! Its the same
as: if (o1.tradeType.name http://o1.tradeType.name == SELL)
newOrders.filter(o2 = o2.marketPoint.is
http://o2.marketPoint.is =
o1.marketPoint.is http://o1.marketPoint.is).sort((s, t) =
s.marketPoint.is http://s.marketPoint.is t.marketPoint.is
http://t.marketPoint.is)
}
var i = 0
var done = false
val remainingOrders = decideByTradeType
while (i remainingOrders.length !done) {
if (remainingOrders(i).lots == o1.lots) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
done = true
}
if (remainingOrders(i).lots.is http://lots.is
o1.lots.is http://o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.lots.set(o1.lots.is
http://o1.lots.is - remainingOrders(i).lots.is
http://lots.is)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
}
if (remainingOrders(i).lots.is http://lots.is
o1.lots.is http://o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
LimitOrderMetaObj.find
[Lift] Re: find, set and save
I kind of found the problem. So far, it has nothing to do with save or
anything like that. The problem is that this line:
val newOrders = LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = o2.tradeType.name != o1.tradeType.name)
does not compare the name of the tradetype (TradeType has an own
name field) in the filter method, instead name returns tradetype
(is this the object name?). The thing is, because its a foreign key
reference and as you told me, it needs to be accessed via
o.tradeType.obj.map(_.name.is) openOr
But now, when I want to compare two of those TradeType.name field (which
are normal strings) I don't really know how to do it. I tried something
like that, but it doesn't work:
val newOrders = LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = {o2.tradeType.obj.map(_.name.is) openOr }
!= {o1.tradeType.obj.map(_.name.is) openOr )
thanks.
Howdy,
You can save some memory by using findMap:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findMap(By(LimitOrderMetaObj.status, NEW)){o2 =
Full(o2).filter(o2.tradeType.name http://o2.tradetype.name/ !=
o1.tradeType.name http://o1.tradetype.name/)}
findMap applies the filtering operation as each row is pulled from the
RDBMS... so you'll have fewer objects in memory.
In terms of the remaining logic... I'm a little lost in your code...
can you describe the logic? What gets updated under which conditions?
On Wed, Jul 22, 2009 at 5:35 AM, Hannes hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
Hi Lifters,
It seems like I'm having problems to modify items that are already in
the database. What I do is, first find the item, then set a new
value to
it and then save it. So far so good, or?
Because its a expensive filter process to find those items to
modify, I
made a local copy of the sub-list that contains the most interesting
items. This sub-list is processed further on and when I finally know
which items to modify, I look those ones up in the database again and
set the values. I hope it makes sence...
thanks
Here's the code:
def joinOrders(o1: LimitOrder): Unit = {
/* select all orders where status=NEW and where that.tradeType !=
order1.tradeType */
val newOrders =
LimitOrderMetaObj.findAll(By(LimitOrderMetaObj.status,
NEW)).toList.filter(o2 = o2.tradeType.name
http://o2.tradeType.name != o1.tradeType.name
http://o1.tradeType.name)
def decideByTradeType: List[LimitOrder] = {
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from lowest to highest marketPoint */
if (o1.tradeType.name http://o1.tradeType.name == BUY)
newOrders.filter(o2 = o2.marketPoint.is
http://o2.marketPoint.is =
o1.marketPoint.is http://o1.marketPoint.is).sort((s, t) =
s.marketPoint.is http://s.marketPoint.is t.marketPoint.is
http://t.marketPoint.is)
/* keep all orders where that.marketPoint = order1.marketPoint
* sort the list from highest to lowest marketPoint */
else //because there are only two different types! Its the same
as: if (o1.tradeType.name http://o1.tradeType.name == SELL)
newOrders.filter(o2 = o2.marketPoint.is
http://o2.marketPoint.is =
o1.marketPoint.is http://o1.marketPoint.is).sort((s, t) =
s.marketPoint.is http://s.marketPoint.is t.marketPoint.is
http://t.marketPoint.is)
}
var i = 0
var done = false
val remainingOrders = decideByTradeType
while (i remainingOrders.length !done) {
if (remainingOrders(i).lots == o1.lots) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.save) openOr 0L
done = true
}
if (remainingOrders(i).lots.is http://lots.is
o1.lots.is http://o1.lots.is) {
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.status.set(OPEN)) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
remainingOrders(i).id)).map(_.save) openOr 0L
LimitOrderMetaObj.find(By(LimitOrderMetaObj.id,
o1.id http://o1.id)).map(_.lots.set(o1.lots.is
http://o1.lots.is - remainingOrders(i).lots.is
http://lots.is)) openOr 0L
[Lift] Re: howto do simple calculation with MappedInt
Dave,
This helped me a lot to understand things better!
thanks.
Sorry it took so long to get to this... my inbox keeps growing... sigh.
Anyway, Order.scala: 64 should be:
def currentCost = Order.this.lots *
(Order.this.marketPlace.obj.map(_.lotValue.is) openOr 0 )
The marketplace field is a foreign key reference... so you have to get
the row that's represented by the foreign key (.obj) which is a
Box[MarketPlace] and then get the lotValue field from the marketplace.
I'm enclosing the revised (compiling) files.
Thanks,
David
On Sun, Jul 5, 2009 at 6:31 AM, Tobias Daub hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li wrote:
here are the two files, thanks!
Send me the file and I'll debug it.
On Fri, Jul 3, 2009 at 3:06 AM, Tobias Daub
hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote:
Thanks Dave, but still getting this error:
/home/wacky/NetBeansProjects/virtualMarket/src/main/scala/org/tobster/model/Order.scala:51:
error: value lotValue is not a member of Long
override def _toForm = Full(p{Order.this.lots *
Order.this.marketPlace.lotValue}/p)
What is the explanation for this behavior?
thanks
On Sun, Jun 21, 2009 at 6:38 AM, Tobias Daub
hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li
mailto:hannes.flo...@gmx.li mailto:hannes.flo...@gmx.li wrote:
I'm stucked again with the simple things
I've a trait that extends BaseLongKeyedMapper and I wanna
add a field
(currentCost) that does some calculation. Nothing special.
Here's
the code:
/*
* Order.scala
*
* To change this template, choose Tools | Template
Manager
* and open the template in the editor.
*/
package org.tobster.model
import net.liftweb._
import mapper._
import http._
import SHtml._
import util._
import model._
/* Describes a general order. */
trait Order extends BaseLongKeyedMapper{
/* The number of lots this order has */
object lots extends
MappedInt(this.asInstanceOf[MapperType])
/* The person who owns the order */
object owner extends
MappedLongForeignKey(this.asInstanceOf[MapperType], User){
// hides this field in the CRUDify list/create
forms
override def dbDisplay_? = false
//set the default value to the current logged
in user (at
creation time)
override def defaultValue =
User.currentUser.map(_.id.is http://id.is http://id.is
http://id.is) openOr 0L
}
/* The market place where the order belongs to */
object marketPlace extends
MappedLongForeignKey(this.asInstanceOf[MapperType],
MarketPlaceMetaObj){
override def _toForm =
Full(SHtml.selectObj[MarketPlace](
MarketPlaceMetaObj.findAll.map(mp
= (mp, mp.name.is http://mp.name.is
http://mp.name.is http://mp.name.is)),
obj,
(mp: MarketPlace) =
apply(mp)))
}
/* The basic trade types are: BUY and SELL */
object tradeType extends
MappedLongForeignKey(this.asInstanceOf[MapperType],
TradeTypeMetaObj){
override def _toForm =
Full(SHtml.selectObj[TradeType](
TradeTypeMetaObj.findAll.map(t = (t,
t.name.is http://t.name.is http://t.name.is
http://t.name.is)),
obj,
(t: TradeType) = apply(t)))
}
object currentCost extends
MappedInt(this.asInstanceOf[MapperType]){
override def _toForm = Full(p{this.lots *
this.marketPlace.lotValue}/p)
Try:
override def _toForm = Full(p{Order.this.lots *
Order.this.marketPlace.lotValue}/p)
[Lift] Set MappedLongForeignKey defaultValue...
Hey Lifters,
I wanna set the defaultValue for this object:
object status extends MappedLongForeignKey(this, OrderStateMetaObj){
override def defaultValue =
OrderStateMetaObj.find(By(OrderStateMetaObj.name, NEW)) openOr 0L
}
The problem is, that the referenced OrderState object doesn't exist at
the time when the application is started first. I thought the openOr
would do the job, but I'm getting this error and don't know how to get
further...
type mismatch;
found : Any
required: Long
override def defaultValue =
OrderStateMetaObj.find(By(OrderStateMetaObj.name, NEW)) openOr 0L
^
one error found
Am I right, that Any is returned because there is no OrderState object
found?
thanks.
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