mediacore/mediacore-moodle — pull request #4 by pennedav (2013-06-18 14:08:03+00:00)
Title: Fixes Chooser button not displaying in Moodle 2.5 (2013051400.05)

Derek, this change fixed the issue for us. It looks like Moodle 2.5 introduced some changes that causes the filters to be named differently as far as return values from filter_get_active_in_context are concerned.