Ruby on Rails：两个对同一模型具有不同名称的引用

Question

My app has a model called User (it includes the email adress, username..) I want to create a model Message it should have two fields sender and recipient . Both are references to the User model. I tried this:

rails generate model Message sender:references recipient:references

Rails generated this:

class Message < ActiveRecord::Base
  belongs_to :sender
  belongs_to :recipient
end

But I don't want two different models. Both fields should reference to User . I'm running Ruby 2.0.0 and Rails 4.0.2. Any help is highly appreciated. Please ask me if you need more information about my problem.

Answer 1

You can specify the class name of the association, doc

class Message < ActiveRecord::Base
  belongs_to :sender, class_name: 'User'
  belongs_to :recipient, class_name: 'User'
end