search for: profanity_filter

I am creating an application that allows a user to post messages to a board. I want to be able to filter profanity. For instance if someone types an inappropriate word of 5 characters I want it to read "#?@#@" or whatever. Ideally, I would be able to install a rails plugin or ruby gem and then simply write Code : - fold - unfold --> message_text.hide_profanity! <-- and that