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Q: 

Rails: foreign_key that is set with a CASE WHEN mysql statement 

  belongs_to :removed_friend, 
      :class_name => 'Profile', 
      :foreign_key => "(CASE WHEN friendships.profile_id = #{self.id} THEN friendships.friend_id ELSE friendships.profile_id END)"

The self.id its not working too :s it should be the id of the profile that is triggered the action.

Anyway the main problem is that this foreign_key is not working and i got a mysql error.

please help.. thanks

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