two association belongs_to with the same models

Question

I have two classes : User, Patent and Help (belongs_to :user and belongs_to :patent) When I click to a link I must create an "Help" that refer to the patent and also to the users. One user is the helper and the other one is the caller.

patents_controller:

def create        
    @patent = Patent.find(params[:patent_id])
    @patent.helps.create(:caller_id => @current_user.id, :user => @patent.user)
    respond_to do |format|
      format.html { redirect_to @patent }
      format.js
  end
end

The problem is I created a "caller_id" to store the second user.id that is not liked to the user model. <%= help.user.name %> give me the right name of the first how can I show the name of the caller from his caller_id or make some connection ?

Answer 1

You need to tell the relation that the caller is a user. So..

belongs_to :caller, :class_name => 'user'