Question

I have quickly managed to get domain classes to be created via a REST POST, but am stuck on how to create multiple creates for a xml file with multiple objects of the same type in, eg where as I was successful with

<Track>
       <trackAlbumName> Songs for Polar Bears </trackAlbumName>
       <trackArtistName> Snow PAtrol </trackArtistName>
       <trackSongTitle> First Song </trackSongTitle>
</Track>

I have added a UploadTrackGroup domain class, and now wish to create multiple Track objects in the same upload, eg I was hoping to POST something like;

<?xml version="1.0" encoding="utf-8"?>

<UploadTrackGroup>

    <Track>
       <trackAlbumName> Songs for Polar Bears </trackAlbumName>
       <trackArtistName> Snow PAtrol </trackArtistName>
       <trackSongTitle> First Song </trackSongTitle>
    </Track>

    <Track>
       <trackAlbumName> Different Class </trackAlbumName>
       <trackArtistName> Pulp </trackArtistName>
       <trackSongTitle> Misshapes </trackSongTitle>
    </Track>

    <Track>
       <trackAlbumName> F Sharp A Sharp </trackAlbumName>
       <trackArtistName> Godspeed You Black Emperor </trackArtistName>
       <trackSongTitle> Dead Flag BLues</trackSongTitle>
    </Track>

</UploadTrackGroup>

But I’ll be damned if I can get it to work.

When I try to use the following code in my controller;

println params

params.UploadTrackGroup.each {
    println "-->" + it
}

I only see a single track, eg

[action:create, controller:recognisedSong, UploadTrackGroup:[Track: F Sharp A Sharp  Godspeed You Black Emperor  Dead Flag BLues]]

-->Track= F Sharp A Sharp  Godspeed You Black Emperor  Dead Flag BLues

Answer 1

I was successful in achieving what I wanted by effectively ignoring the parent UploadTrackGroup node, and simply using

 request.XML.Track.each { 
                  println it.trackAlbumName.text() + " " + it.trackArtistName.text()
              }

It would appear that as soon as I try to specify the exact qualified path to the Track nodes, ie UploadTrackGroup.Track.each or various variations thereof, it doesnt work.

So it goes.