How to bind the Map to View in the Snippet ?

[Neil.Lv]

Hi all,

How to bind the Map to View in the Snippet ?

This is the bind code
###
scala.collection.mutable.Map[String,List[String]] =
Map(2009/10/09 -> List(St1), 2009/10/10 -> List(Hello, M7, 123,
da))

var data = Map(2009/10/09 -> List(St1), 2009/10/10 -> List(Hello,
M7, 123, da))
def doList(in : NodeSeq) : NodeSeq = {
data.foreach(d=> {
bind("data", in,
"time" -> Text({d._1}),
"list" -> bindList(d._2)
)
})

def bindList(lists:List[String]) = {
lists flatMap { l =>
bind("sec", chooseTemplate("data", "list", in),
"title" -> Text(l))
}
###

It always show this message:
found : Unit
required: scala.xml.NodeSeq
data.foreach(d=> {


Cheers,
Neil

[Naftoli Gugenheim]

That should not be foreach but flatMap.
Foreach is like map but returns Unit, and flatMap is like map but it concatenates the resulting elements, which must be iterable (or iterators, depending).

-------------------------------------

[Neil.Lv]

How should i write the bind code ?

var data = Map(2009/10/09 -> List(St1), 2009/10/10 -> List(Hello, M7,
123,da))

....

data.flatMap(d=> {
Log.info(" *************************:" + d)
bind("data", in,
"date_title" -> Text("222")
)
})

Get this erors:
found : Iterable[scala.xml.Node]
required: scala.xml.NodeSeq
data.flatMap(d=> {

I'm not familiar with this.

I want the page show like this:
date - 2009/10/09
st1
date - 2009/10/10
Hello
M7
123
da

Cheers,
Neil

On Nov 9, 11:35 am, Naftoli Gugenheim <naftoli...@gmail.com> wrote:
> That should not be foreach but flatMap.
> Foreach is like map but returns Unit, and flatMap is like map but it concatenates the resulting elements, which must be iterable (or iterators, depending).
>
> -------------------------------------
>

[David Pollak]

On Sun, Nov 8, 2009 at 7:45 PM, Neil.Lv <ani...@gmail.com> wrote:

 How should i write the bind code ?

 var data = Map(2009/10/09 -> List(St1), 2009/10/10 -> List(Hello, M7,
123,da))

 ....

     data.flatMap(d=> {

data.toList.flatMap(...)
 

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Beginning Scala http://www.apress.com/book/view/1430219890
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[Neil.Lv]

David,

Thanks very much!

It works now and can be shown in the page !

Cheers,
Neil

On Nov 9, 12:06 pm, David Pollak <feeder.of.the.be...@gmail.com>
wrote:

> Beginning Scalahttp://www.apress.com/book/view/1430219890