JFormFieldRepeatable—can store only one row

Question

I am trying to use the »repeatable« form field. Right now I have this in code in the templateDetails.xml

<config>
    <fields name="params">
        <fieldset name="advanced">


            <field 
                type="repeatable" 
                label="label"
                name="stuff_list"
                default='{"stuffCSS":[], "stuffFile": []}'>

                <fields name="params">
                    <fieldset hidden="true" name="stuff_list_modal" repeat="true">
                        <field type="filelist"
                            label="stuffFile"
                            name="stuffFile"
                            hide_default="true"
                            hide_none="true"
                            directory="templates/tmpl/img" />

                        <field type="text"
                            label="stuffCSS"
                            name="stuffCSS"
                            default="" />

                    </fieldset>
                </fields>
            </field>

        </fieldset>
    </fields>
</config>

That works if I set the values for one row. But If I enter values for a second, each click of the »select« button redirects out of the edit screen, to the overview page of the template styles…

Any Help would be great!

EDIT

I just had a look in the database where the JSON string is stored correctly. So I replaced the compressed js version of /media/system/js/repeatable.js with the uncompressed version and stepped through with firebug. Result:

The javascript error is thrown in line 185:

$('select').chosen({
    disable_search_threshold : 10,
    allow_single_deselect : true
});

TypeError: $(...).chosen is not a function
http://xxx/media/system/js/repeatable.js
Line 185

EDIT #2

I just commented out the lines show above (185 - 188) and it works!

Answer 1

There are a few outstanding issues with the repeatable form in Joomla. I had a quick look into it and it seems like a bug.

Best advice I can give you is to get involved into testing pending issues (see http://issues.joomla.org/) or to check if it was not already fixed.

If you think you can fix this, submit a pull request on GitHub.