Thank you, that helped.
On 20 Jul., 17:44, David Pollak <[email protected]> wrote:
> On Mon, Jul 20, 2009 at 2:11 PM, fbettag <[email protected]> wrote:
>
> > I still don't understand how JsObj works.. I've tried almost every
> > combination, it's more like luck that some stuff i do works.
>
> > def listLanguages(): LiftResponse = {
>
> > def displayLanguage(l: Locale): (String, String) = {
> > var r = l.getDisplayLanguage
> > if (l.getDisplayCountry != "")
> > r += " | " + l.getDisplayCountry
> > return (l.toString, r)
> > }
> > JsonResponse(JsObj(
> > "results" ->
> > JsArray(Locale.getAvailableLocales.flatMap(s =>
> > displayLanguage(s)) :_*)
> > ))
> > }
>
> > Believe me, i tried every possible combination of JsObj in there, it
> > *always* got to nag something. We really need some samples for stuff
> > like that..
> > One time it tells me that it needs a List(String, String), as soon as
> > i have that, it want's a List(String, JsExp), so i change it to that,
> > then it complains again over the first problem..
>
> > it really is the big time killer for beginners to play around with
> > stuff like that because the API-Docs are too "dry" to understand
> > anything from it.
>
> The best thing to do is to break your expressions out into multiple lines
> and then make sure that each line has a type declaration:
>
> So, if you've got a List[Thing] and you want a JsObj, you can work through
> each of the steps.
>
> First, define a method that will convert a Thing into a (String, JsExp):
>
> def cvt(in: Thing): (String, JsExp) = ...
>
> next, convert the List[Thing] into a List[(String, JsExp)]:
>
> val lstOfPair = listOfThing.map(cvt _)
>
> finally, create the JsObj:
>
> JsObj(lstOfPair :_* )
>
> When is doubt, break things up into smaller pieces and explicitly declare
> the types for each piece. That'll help you narrow things down.
>
>
>
>
>
> > best regards.
>
> > On 13 Jul., 18:06, David Pollak <[email protected]> wrote:
> > > pushed
>
> > > On Mon, Jul 13, 2009 at 8:17 AM, David Pollak <
> > [email protected]
>
> > > > wrote:
>
> > > > On Mon, Jul 13, 2009 at 7:18 AM, Jeppe Nejsum Madsen <[email protected]
> > >wrote:
>
> > > >> Jeppe Nejsum Madsen <[email protected]> writes:
>
> > > >> > Hi,
>
> > > >> > Just figured out that while JsObj generates valid javascript
> > > >> > expressions, it doesn't generate valid JSON objects since it uses
> > > >> > single quotes instead of double quotes for strings.
>
> > > >> > Is there another way in Lift to generate JSON?
>
> > > >> On a slightly related note it seems as if JSONParser also accepts
> > input
> > > >> which is not really JSON:
>
> > > >> scala> JSONParser.parse("{'text':2}")
> > > >> res0: net.liftweb.util.Box[Any] = Full(Map(text -> 2.0))
> > > >> scala> JSONParser.parse("{text:2}")
> > > >> res1: net.liftweb.util.Box[Any] = Full(Map(text -> 2.0))
>
> > > >> JSON requires strings to be surrounded with quotation marks (")
>
> > > >> This leads me to believe that this is all intentional :-)
>
> > > > I fixed the problem many months ago. The fix broke some apps. I
> > backed
> > > > out the fix. I'll un-back out the fix now.
>
> > > >> /Jeppe
>
> > > > --
> > > > Lift, the simply functional web frameworkhttp://liftweb.net
> > > > Beginning Scalahttp://www.apress.com/book/view/1430219890
> > > > Follow me:http://twitter.com/dpp
> > > > Git some:http://github.com/dpp
>
> > > --
> > > Lift, the simply functional web frameworkhttp://liftweb.net
> > > Beginning Scalahttp://www.apress.com/book/view/1430219890
> > > Follow me:http://twitter.com/dpp
> > > Git some:http://github.com/dpp
>
> --
> Lift, the simply functional web frameworkhttp://liftweb.net
> Beginning Scalahttp://www.apress.com/book/view/1430219890
> Follow me:http://twitter.com/dpp
> Git some:http://github.com/dpp
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