netzke/netzke-basepack — pull request #147 by paulsponagl (2013-10-18 08:59:15+00:00)
Title: composite_primary_keys workaround

The composite_primary_keys gem responds with
[Key1,Key2...] and [Value1,Value2...]
on primary_key and id requests.
Basepack::AttrConfig converts the keys Array to String.
This workaround will transport the values to extjs
as a comma-seperated string too.