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Date: Wed, 9 May 2012 08:34:48 -0700 (PDT)
From: Sam <s...@samuel.pro>
To: liftweb@googlegroups.com
Message-ID: <23303576.2137.1336577688472.JavaMail.geo-discussion-forums@pbcoz4>
Subject: Dynamically addFields(...) of LiftScreen by use ScreenVar failed in
 a loop.
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 val books: List[Book] = Books.all  //Book is MappedOneToMany Object

books match {

    case Nil => "was an empty list"

    case x :: xs => {

      object book extends ScreenVar(xs)

      addFields(() => book) // error: type mismatch;
//[INFO]  found   : book.type (with underlying type object up)
//[INFO]  required: net.liftweb.util.FieldContainer
//[INFO]       addFields(() => book)

    }

  }


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<p class=3D"p1"></p><p class=3D"p1">







</p><p class=3D"p1"></p><p class=3D"p1"></p><p class=3D"p1">







</p><p class=3D"p1"></p><p class=3D"p1">







</p><p class=3D"p1"><span class=3D"s1">val</span> books: List[Book] =3D Boo=
ks.all &nbsp;//Book is&nbsp;MappedOneToMany Object</p><p></p><p class=3D"p1=
">books match {</p><p class=3D"p1">&nbsp; &nbsp; case Nil =3D&gt; "was an e=
mpty list"</p><p class=3D"p1">&nbsp; &nbsp; case x :: xs =3D&gt; {</p><p cl=
ass=3D"p1">&nbsp; &nbsp; &nbsp; object book extends ScreenVar(xs)</p><p cla=
ss=3D"p1"><font color=3D"#ff0000">&nbsp; &nbsp; &nbsp; addFields(() =3D&gt;=
 book) // error:&nbsp;type mismatch;<br></font><span style=3D"color: rgb(25=
5, 0, 0); ">//[INFO]</span><span style=3D"color: rgb(255, 0, 0); ">&nbsp; <=
/span><span style=3D"color: rgb(255, 0, 0); ">found </span><span style=3D"c=
olor: rgb(255, 0, 0); ">&nbsp; </span><span style=3D"color: rgb(255, 0, 0);=
 ">:&nbsp;</span><span style=3D"color: rgb(255, 0, 0); ">book</span><span s=
tyle=3D"color: rgb(255, 0, 0); ">.type (with underlying type object up)<br>=
</span><span style=3D"color: rgb(255, 0, 0); ">//[INFO]</span><span style=
=3D"color: rgb(255, 0, 0); ">&nbsp; </span><span style=3D"color: rgb(255, 0=
, 0); ">required: net.liftweb.util.FieldContainer<br></span><span style=3D"=
color: rgb(255, 0, 0); ">//[INFO] </span><span style=3D"color: rgb(255, 0, =
0); ">&nbsp; &nbsp; &nbsp; </span><span style=3D"color: rgb(255, 0, 0); ">a=
ddFields(() =3D&gt; book)</span></p><p class=3D"p1">&nbsp; &nbsp; }</p><p c=
lass=3D"p1">&nbsp; }</p><p></p><p></p><p></p><p></p><p></p><p></p>
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