I have three models:User,Action,Comment.User have has_many relation
with the Action,this is true.A user can make many comments for
different action,an action can have many comments belonging to it.So
can i use two has many and two belongs_to to set the relationship
among the three models like following?
has_many :comments in User model
has_many :comments in Action model
belongs_to :action in the Comment model.
That is the Comment has two foreign keys.