sferik/rails_admin — pull request #2136 by ddnexus (2014-12-17 08:44:45+00:00)
Title: Fix for polymorphic association field selector not working with AR

AR stores and queries the STI base class in polymorphic associations. This commit correctly sets the _type field to the object's STI base class (not the object's class).

Note: I used the rubygem (0.6.5) version because master (0.6.6) is broken. The cerulean theme has not been updated and gives an error, plus a few other css issues., however you should be able to pull also on top of master