Question

I need to be able to declare variables and after some markup later I
need to reference them. In order to accomplish this, this is
simplified version of my scala template:

@(map1: 
java.util.LinkedHashMap[String,java.util.LinkedHashMap[String,Object]]) 
@import scala.collection.JavaConversions._ 
@import play.Logger 
@for( (key,value) <- map1) { 
    <div> 
    @{ 
       val rmap = Foo.someMethod(value) 
       val baz = rmap.getOrElse("baz", null) 
    <table border="0"  cellpadding="0" cellspacing="0"  > 
    <tbody> 
    <tr> 
      <td rowspan="3"> 
        <div class="bar"> 
          @baz 
        </div> 
      </td> 
    </tr> 
    </tbody> 
  </table> 
  } 
  </div> 
} 

Is above valid scala template and if not how can I declare baz and
reference it later in the markup?
I am using 1.2.2RC2 and scala 0.9.1

Answer 1

I was curious so did some digging. See https://groups.google.com/forum/#!topic/play-framework/Mo8hl5I0tBQ – there is no way at the moment, but an interesting work-around is shown. Define utils/Let.scala:

package utils
Object Let {
    def let[A,B](a:A)(f:A=>B):B = f(a)
}

and then

@import utils.Let._

@let(2+3){ answer =>
   @answer <hr> @answer
}

It’s a very functional way of handling it, but then, what’d you expect in Scala 🙂