Hi Dave,
The thing with
User.currentUserId openOr 0L
didn't worked as well.
I attached the source file that contains the trait that I mix into my
class .
> Can you post a code sample and the error?
Warning: JAVA_HOME environment variable is not set.
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'jetty'.
[INFO]
------------------------------------------------------------------------
[INFO] Building virtualMarket
[INFO] task-segment: [jetty:run]
[INFO]
------------------------------------------------------------------------
[INFO] Preparing jetty:run
[INFO] [resources:resources]
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] [yuicompressor:compress {execution: default}]
[INFO] nb warnings: 0, nb errors: 0
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [scala:compile {execution: default}]
[INFO] Checking for multiple versions of scala
[INFO] Compiling 1 source files to /home/tobs/virtualMarket/target/classes
[WARNING] Exception in thread "main" java.lang.RuntimeException:
malformed Scala signature of User at 13749; reference type _1 of <none>
refers to nonexisting symbol.
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.errorBadSignature(UnPickler.scala:762)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbol(UnPickler.scala:172)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbolRef$1.apply(UnPickler.scala:714)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbolRef$1.apply(UnPickler.scala:714)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbolRef(UnPickler.scala:714)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType(UnPickler.scala:254)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at
scala.tools.nsc.symtab.classfile.PickleBuffer.until(PickleBuffer.scala:127)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType(UnPickler.scala:255)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType(UnPickler.scala:286)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at
scala.tools.nsc.symtab.classfile.PickleBuffer.until(PickleBuffer.scala:127)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType(UnPickler.scala:255)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType(UnPickler.scala:283)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$LazyTypeRef$$anonfun$32$$anonfun$apply$4.apply(UnPickler.scala:779)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$LazyTypeRef$$anonfun$32$$anonfun$apply$4.apply(UnPickler.scala:779)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$LazyTypeRef$$anonfun$32.apply(UnPickler.scala:779)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$LazyTypeRef$$anonfun$32.apply(UnPickler.scala:779)
[WARNING] at scala.tools.nsc.Global$$anonfun$6.apply(Global.scala:747)
[WARNING] at scala.tools.nsc.Global$$anonfun$6.apply(Global.scala:747)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$LazyTypeRef.complete(UnPickler.scala:779)
[WARNING] at
scala.tools.nsc.symtab.Symbols$Symbol.info(Symbols.scala:555)
[WARNING] at
scala.tools.nsc.symtab.Symbols$Symbol.tpe(Symbols.scala:534)
[WARNING] at
scala.tools.nsc.symtab.Symbols$Symbol.tpeHK(Symbols.scala:688)
[WARNING] at
scala.tools.nsc.symtab.Types$Type.memberType(Types.scala:425)
[WARNING] at
scala.tools.nsc.symtab.Types$Type.findMember(Types.scala:720)
[WARNING] at scala.tools.nsc.symtab.Types$Type.members(Types.scala:370)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.implicitsOfClass$1(Typers.scala:3770)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$implicitsOfType$1$1.apply(Typers.scala:3765)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$implicitsOfType$1$1.apply(Typers.scala:3765)
[WARNING] at
scala.collection.jcl.MutableIterator$Map.next(MutableIterator.scala:67)
[WARNING] at scala.Iterator$class.toList(Iterator.scala:696)
[WARNING] at
scala.collection.jcl.MutableIterator$Map.toList(MutableIterator.scala:65)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.implicitsOfType$1(Typers.scala:3765)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.inferImplicit(Typers.scala:3787)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$inferView(Typers.scala:182)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.adapt(Typers.scala:842)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.adapt(Typers.scala:662)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3363)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3406)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.computeType(Typers.scala:3457)
[WARNING] at
scala.tools.nsc.typechecker.Namers$Namer.methodSig(Namers.scala:759)
[WARNING] at
scala.tools.nsc.typechecker.Namers$Namer.typeSig(Namers.scala:848)
[WARNING] at
scala.tools.nsc.typechecker.Namers$Namer$$anonfun$typeCompleter$1.apply(Namers.scala:415)
[WARNING] at
scala.tools.nsc.typechecker.Namers$Namer$$anonfun$typeCompleter$1.apply(Namers.scala:413)
[WARNING] at
scala.tools.nsc.typechecker.Namers$$anon$1.complete(Namers.scala:982)
[WARNING] at
scala.tools.nsc.symtab.Symbols$Symbol.info(Symbols.scala:555)
[WARNING] at
scala.tools.nsc.symtab.Symbols$Symbol.initialize(Symbols.scala:669)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3078)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3358)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3395)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:1598)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at scala.List$.loop$1(List.scala:300)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1221)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1114)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3091)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3358)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3395)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:1598)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at scala.List$.loop$1(List.scala:300)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1221)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedClassDef(Typers.scala:1090)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3088)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3358)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3395)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:1598)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at scala.List$.loop$1(List.scala:300)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at scala.List$.loop$1(List.scala:304)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3084)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3358)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3395)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:1598)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at scala.List$.loop$1(List.scala:300)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3084)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3358)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3395)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStat$1(Typers.scala:1598)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer$$anonfun$19.apply(Typers.scala:1643)
[WARNING] at scala.List$.loop$1(List.scala:300)
[WARNING] at scala.List$.mapConserve(List.scala:317)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1643)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3084)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3358)
[WARNING] at
scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:3395)
[WARNING] at
scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$2.apply(Analyzer.scala:41)
[WARNING] at
scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:267)
[WARNING] at
scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:246)
[WARNING] at
scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:246)
[WARNING] at scala.Iterator$class.foreach(Iterator.scala:414)
[WARNING] at
scala.collection.mutable.ListBuffer$$anon$1.foreach(ListBuffer.scala:266)
[WARNING] at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:246)
[WARNING] at scala.tools.nsc.Global$Run.compileSources(Global.scala:574)
[WARNING] at scala.tools.nsc.Global$Run.compile(Global.scala:667)
[WARNING] at scala.tools.nsc.Main$.process(Main.scala:73)
[WARNING] at scala.tools.nsc.Main$.main(Main.scala:87)
[WARNING] at scala.tools.nsc.Main.main(Main.scala)
[INFO]
------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO]
------------------------------------------------------------------------
[INFO] command line returned non-zero value:1
[INFO]
------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 32 seconds
[INFO] Finished at: Thu May 21 16:01:45 CEST 2009
[INFO] Final Memory: 15M/30M
[INFO]
------------------------------------------------------------------------
>
> try:
>
> object owner extends MappedLongForeignKey(this, User) {
> override def defaultValue = User.currentUserId openOr 0L
> }
thanks
>
>
> On Wed, May 20, 2009 at 5:38 PM, Tobias Daub <hannes.flo...@gmx.li
> <mailto:hannes.flo...@gmx.li>> wrote:
>
>
> Hello Lifters,
>
> I wanted to override the defaultValue of my owner field, to always set
> it to the currentUser. I cannot compile this, because I get an error
> (what I kind of understand). During compilation, there's no
> currentUser
> so this function call has to be delayed somehow, but how?
>
> The definition of the owner field is inside a trait, is this a
> additional reason for this error?
>
>
> thanks!
>
>
>
>
>
> --
> 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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/*
* 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
override def defaultValue = User.currentUser
//override def defaultValue = User.currentUserId openOr 0L
}
/* The market place where the order belongs to */
object marketPlace extends MappedLongForeignKey(this.asInstanceOf[MapperType], MarketPlaceMetaObj)
/* There are different types of orders, e.g. Limit Order, Market Order etc. */
object orderType extends MappedLongForeignKey(this.asInstanceOf[MapperType], OrderTypeMetaObj)
/* The basic trade types are: BUY and SELL */
object tradeType extends MappedLongForeignKey(this.asInstanceOf[MapperType], TradeTypeMetaObj){
// override def _toForm = SHtml.selectObj( ... )
}
// def currentValue = this.lots * this.marketPlace.lotValue
}
