alex/django-filter — pull request #121 by jaredlewis (2013-11-15 20:57:58+00:00)
Title: Adding a MethodFilter

This is a filter that will allow you to run a method that exists on the filter set that this filter is a property of. Set the `action` to a string that will map to a method on the filter set class. This allows for custom filtering action methods to live within a class instead of a floating stand alone method