I've got this in my pom.xml
<dependency>
<groupId>net.liftweb</groupId>
<artifactId>lift-core</artifactId>
<version>1.0</version>
</dependency>
On Jan 5, 8:54 pm, David Pollak <feeder.of.the.be...@gmail.com> wrote:
> On Tue, Jan 5, 2010 at 11:51 AM, Mads Hartmann <mads...@gmail.com> wrote:
> > Sure thing, it's quite long though :)
>
> > Just one thing, i added the following for it to compile (I want to
> > return List[User] not List[TagUser] : .map(_.user.obj.open_!)
>
> > So in all it looks like this
>
> > def getTopUsers(in: Int) :List[User] = {
>
> > TagUser.findAll(By(TagUser.tag, this.id), In(TagUser.user, User.id,
> > OrderBy(User.followers_count, Descending), MaxRows[User](in)))
> > .map(_.user.obj.open_!)
>
> > }
>
> What version of Lift?
>
>
>
>
>
> > Exception occured while processing /
> > Message: java.lang.NullPointerException
> > net.liftweb.mapper.In$$anon$3.<init>(MetaMapper.scala:1206)
> > net.liftweb.mapper.In$.apply(MetaMapper.scala:1200)
> > scalableKvidr.model.Tag.getTopUsers(Tag.scala:38)
> > scalableKvidr.snippet.TagsSnippets$$anonfun$frontpageTags$1.apply
> > (TagsSnippets.scala:71)
> > scalableKvidr.snippet.TagsSnippets$$anonfun$frontpageTags$1.apply
> > (TagsSnippets.scala:68)
> > scala.List.flatMap(List.scala:1125)
> > scalableKvidr.snippet.TagsSnippets.frontpageTags(TagsSnippets.scala:
> > 67)
> > sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > sun.reflect.NativeMethodAccessorImpl.invoke
> > (NativeMethodAccessorImpl.java:39)
> > sun.reflect.DelegatingMethodAccessorImpl.invoke
> > (DelegatingMethodAccessorImpl.java:25)
> > java.lang.reflect.Method.invoke(Method.java:597)
>
> > net.liftweb.util.ClassHelpers$$anonfun$net$liftweb$util$ClassHelpers$
> > $_invokeMethod$2$$anonfun$apply$7.apply(ClassHelpers.scala:352)
> > net.liftweb.util.ControlHelpers$class.tryo(ControlHelpers.scala:40)
> > net.liftweb.util.Helpers$.tryo(Helpers.scala:29)
> > net.liftweb.util.ControlHelpers$class.tryo(ControlHelpers.scala:55)
> > net.liftweb.util.Helpers$.tryo(Helpers.scala:29)
>
> > net.liftweb.util.ClassHelpers$$anonfun$net$liftweb$util$ClassHelpers$
> > $_invokeMethod$2.apply(ClassHelpers.scala:352)
>
> > net.liftweb.util.ClassHelpers$$anonfun$net$liftweb$util$ClassHelpers$
> > $_invokeMethod$2.apply(ClassHelpers.scala:352)
> > scala.Iterator$$anon$14.next(Iterator.scala:267)
> > scala.Iterator$class.find(Iterator.scala:462)
> > scala.Iterator$$anon$14.find(Iterator.scala:265)
> > net.liftweb.util.ClassHelpers$class.net$liftweb$util$ClassHelpers$
> > $_invokeMethod(ClassHelpers.scala:353)
> > net.liftweb.util.ClassHelpers$class.invokeMethod(ClassHelpers.scala:
> > 285)
> > net.liftweb.util.Helpers$.invokeMethod(Helpers.scala:29)
> > net.liftweb.http.LiftSession$$anonfun$17$$anonfun$apply$33$$anonfun
> > $apply$36$$anonfun$apply$38.apply(LiftSession.scala:723)
> > net.liftweb.http.LiftSession$$anonfun$17$$anonfun$apply$33$$anonfun
> > $apply$36$$anonfun$apply$38.apply(LiftSession.scala:705)
> > net.liftweb.util.EmptyBox.openOr(Box.scala:372)
> > net.liftweb.http.LiftSession$$anonfun$17$$anonfun$apply$33$$anonfun
> > $apply$36.apply(LiftSession.scala:705)
> > net.liftweb.http.LiftSession$$anonfun$17$$anonfun$apply$33$$anonfun
> > $apply$36.apply(LiftSession.scala:705)
> > net.liftweb.util.EmptyBox.openOr(Box.scala:372)
> > net.liftweb.http.LiftSession$$anonfun$17$$anonfun$apply$33.apply
> > (LiftSession.scala:704)
> > net.liftweb.http.LiftSession$$anonfun$17$$anonfun$apply$33.apply
> > (LiftSession.scala:704)
> > net.liftweb.http.S$.doSnippet(S.scala:725)
>
> > net.liftweb.http.LiftSession$$anonfun$17.apply(LiftSession.scala:702)
>
> > net.liftweb.http.LiftSession$$anonfun$17.apply(LiftSession.scala:701)
> > net.liftweb.util.Full.map(Box.scala:330)
> > net.liftweb.http.LiftSession.net$liftweb$http$LiftSession$
> > $processSnippet(LiftSession.scala:701)
> > net.liftweb.http.LiftSession$$anonfun$_defaultLiftTagProcessing
> > $1.apply(LiftSession.scala:793)
> > net.liftweb.http.LiftSession$$anonfun$_defaultLiftTagProcessing
> > $1.apply(LiftSession.scala:777)
> > net.liftweb.util.NamedPF.apply(NamedPartialFunction.scala:30)
> > net.liftweb.util.NamedPF$.apply(NamedPartialFunction.scala:76)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude$1$
> > $anonfun$apply$49.apply(LiftSession.scala:808)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude$1$
> > $anonfun$apply$49.apply(LiftSession.scala:808)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
> > net.liftweb.http.S$.setVars(S.scala:623)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude
> > $1.apply(LiftSession.scala:808)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude
> > $1.apply(LiftSession.scala:805)
> > scala.Seq$class.flatMap(Seq.scala:294)
> > scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
> > net.liftweb.http.LiftSession.processSurroundAndInclude
> > (LiftSession.scala:804)
> > net.liftweb.http.LiftSession.net$liftweb$http$LiftSession$
> > $processSurroundElement(LiftSession.scala:948)
> > net.liftweb.http.LiftSession$$anonfun$_defaultLiftTagProcessing
> > $1.apply(LiftSession.scala:784)
> > net.liftweb.http.LiftSession$$anonfun$_defaultLiftTagProcessing
> > $1.apply(LiftSession.scala:777)
> > net.liftweb.util.NamedPF.apply(NamedPartialFunction.scala:30)
> > net.liftweb.util.NamedPF$.apply(NamedPartialFunction.scala:76)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude$1$
> > $anonfun$apply$49.apply(LiftSession.scala:808)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude$1$
> > $anonfun$apply$49.apply(LiftSession.scala:808)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
> > net.liftweb.http.S$.setVars(S.scala:623)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude
> > $1.apply(LiftSession.scala:808)
> > net.liftweb.http.LiftSession$$anonfun$processSurroundAndInclude
> > $1.apply(LiftSession.scala:805)
> > scala.Seq$class.flatMap(Seq.scala:294)
> > scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
> > net.liftweb.http.LiftSession.processSurroundAndInclude
> > (LiftSession.scala:804)
> > net.liftweb.http.LiftSession$$anonfun$8.apply(LiftSession.scala:462)
> > net.liftweb.http.LiftSession$$anonfun$8.apply(LiftSession.scala:462)
> > net.liftweb.util.Full.map(Box.scala:330)
> > net.liftweb.http.LiftSession.processRequest(LiftSession.scala:462)
> > net.liftweb.http.LiftServlet.net$liftweb$http$LiftServlet$
> > $dispatchStatefulRequest(LiftServlet.scala:244)
> > net.liftweb.http.LiftServlet$$anonfun$2.apply(LiftServlet.scala:176)
> > net.liftweb.http.LiftServlet$$anonfun$2.apply(LiftServlet.scala:176)
> > net.liftweb.http.S$.net$liftweb$http$S$$wrapQuery(S.scala:398)
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_nest2InnerInit$1$
> > $anonfun$apply$16.apply(S.scala:453)
> > net.liftweb.http.S$.net$liftweb$http$S$$doAround(S.scala:372)
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$doAround$1.apply
> > (S.scala:373)
> > net.liftweb.mapper.DB$$anon$1.net$liftweb$mapper$DB$$anon$$doWith
> > (DB.scala:117)
> > net.liftweb.mapper.DB$$anon$1$$anonfun$net$liftweb$mapper$DB$$anon$
> > $doWith$1.apply(DB.scala:118)
> > net.liftweb.mapper.DB$$anon$1$$anonfun$net$liftweb$mapper$DB$$anon$
> > $doWith$1.apply(DB.scala:118)
> > net.liftweb.mapper.DB$.use(DB.scala:305)
> > net.liftweb.mapper.DB$$anon$1.net$liftweb$mapper$DB$$anon$$doWith
> > (DB.scala:118)
> > net.liftweb.mapper.DB$$anon$1.apply(DB.scala:124)
> > net.liftweb.http.S$.net$liftweb$http$S$$doAround(S.scala:373)
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_nest2InnerInit
> > $1.apply(S.scala:451)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
> > net.liftweb.http.S$.net$liftweb$http$S$$_nest2InnerInit(S.scala:450)
>
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1$$anonfun
> > $apply$19$$anonfun$apply$20$$anonfun$apply$21$$anonfun$apply$22$
> > $anonfun$apply$23$$anonfun$apply$24.apply(S.scala:471)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
>
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1$$anonfun
> > $apply$19$$anonfun$apply$20$$anonfun$apply$21$$anonfun$apply$22$
> > $anonfun$apply$23.apply(S.scala:470)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
>
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1$$anonfun
> > $apply$19$$anonfun$apply$20$$anonfun$apply$21$$anonfun$apply$22.apply
> > (S.scala:469)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
>
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1$$anonfun
> > $apply$19$$anonfun$apply$20$$anonfun$apply$21.apply(S.scala:468)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
>
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1$$anonfun
> > $apply$19$$anonfun$apply$20.apply(S.scala:467)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
>
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1$$anonfun
> > $apply$19.apply(S.scala:466)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
> > net.liftweb.http.S$$anonfun$net$liftweb$http$S$$_innerInit$1.apply
> > (S.scala:465)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
> > net.liftweb.http.S$.net$liftweb$http$S$$_innerInit(S.scala:464)
> > net.liftweb.http.S$$anonfun$_init$1$$anonfun$apply$27$$anonfun$apply
> > $28$$anonfun$apply$29$$anonfun$apply$30.apply(S.scala:495)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
> > net.liftweb.http.S$$anonfun$_init$1$$anonfun$apply$27$$anonfun$apply
> > $28$$anonfun$apply$29.apply(S.scala:494)
> > net.liftweb.http.RequestVarHandler$.apply(Vars.scala:191)
> > net.liftweb.http.S$$anonfun$_init$1$$anonfun$apply$27$$anonfun$apply
> > $28.apply(S.scala:493)
> > net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
>
> ...
>
> read more »
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