[Jslib] Re: Creating a new RDF file with the rdf libraries

[Pete Collins]

Eric Hodel wrote:
> I'm trying to use the following code to create a new RDF file to cache 
> data for a livejournal client.  The Filesystem stuff I stole out of 
> mozcalc as jslib does not have a getProfileDir() function in DirUtils (I 
> didn't check the actual code yet).

Yes it does, its called getMozUserHomeDir()

dirUtils covers all af the constants defined here:

http://lxr.mozilla.org/seamonkey/source/xpcom/io/nsAppDirectoryServiceDefs.h

And even has some documentation here:

http://jslib.mozdev.org/libraries/io/dirUtils.js.html

--pete


> 
> The only thing I get so far is the file "livelizard.rdf" created in my 
> profile directory.  However, the seq (urn:livelizard:moods) is always 
> null, so none of the data gets copied.  I've looked through the docs, 
> but can't seem to figure out how to put the pieces together to make it 
> do what I want.
> 
> (Looking through mozcalc wasn't any help either, apparently it suffers 
> from a similar problem.)
> 
> function saveMoods() {
>   var file = Filesystem.concatPath(Filesystem.getMozUserHomeDir(),
>     "livelizard.rdf");
>   var livelizardRDF = new RDFFile(file);
> 
>   var seq = livelizardRDF.addRootSeq("urn:livelizard:moods");
>   if (seq != null) {
>     for (var i = 1; i <= moods.length; i++) {
>       var mood = moods[i];
>       var mood_id = mood[MOOD_ID];
>       var mood_name = mood[MOOD_NAME];
>       //alert(i + " id: " + mood_id + ", name: " + mood_name);
>       var node = seq.addNode(mood_id);
>       seq.setAttribute("urn:livelizard:moods:" + mood_id,
>         "Name", mood_name);
>     }
>   }
> 
>   livelizardRDF.flush();
> }