Rails-has_one和belongs_to进行关联

Question

I have these two tables:

accounts
  - user_id

users
  - account_id

Many users can belong to an account and an account can have exactly one owner with full permissions. If a user owns an account, the two should reference each other. I'm trying to figure out how to set up this association. Here's what I have:

class Account < AR::Base
  has_many :users
  has_one :owner, class_name: 'User', foreign_key: :user_id

This seems right to me, but the User class is definitely not:

class User < AR::Base
  belongs_to :account
  has_one :account

An object can't belong to and have one at the same time. How should I set up my User class?

Answer 1

Following should work I think:

class Account < AR::Base
  has_many :users
  belongs_to :owner, class_name: 'User', foreign_key: :user_id


class User < AR::Base
  belongs_to :account
  has_one :account, inverse_of: :owner