ches/mongoid_taggable — pull request #7 by tmaier (2012-02-18 21:01:31+00:00)
Title: Add tags_before_type_cast method

I added a [type_before_type_cast](http://api.rubyonrails.org/classes/ActionView/Helpers/InstanceTag.html#method-c-value_before_type_cast) method.

basically it does the same as https://gist.github.com/1172956 but by providing a type_before_type_cast method which is then used by Rails FormHelper