DataTiddlerPlugin and ForEachTiddlerPlugin -- getting to nested objects

[adc...@gmail.com]

Hello,

I'm trying to use a TiddlyWiki to analyze sets of JSON files that I have stored as tiddlers.  I realized recently that the combination of DataTiddlerPlugin and ForEachTiddlerPlugin could be very powerful for what I'm doing.  I've got a problem when dealing with nested objects though...  For example:

<<showData>>

<data>{

   "foo" : "0",

   "bar" : [

      {

         "baz" : [

            "42",

            "128"

         ]

      }

   ]

}</data>

This will show correctly as a table, but when I try to use a forEachTiddler call somewhere else, I don't know how, or if, I can dig into the "bar" object.  The following code will show "[object Object]" in the result area for "bar".  I'd like to be able to do something like tiddler.data("bar.baz") to list 42 and 128.  Is there a way to express this properly, or can the data call only show top level values?

<<forEachTiddler

    where

        tiddler.data("foo") == "0"'

    write

        '"|[["+tiddler.title+"]]|"+tiddler.data("foo")+"| "+tiddler.data("bar")+"|\n"'

>>

Thanks!

Michael