导轨的has_many自我指涉 [英] Rails has_many self referential

问题描述

我有如下（简化）的账户模型：

I have an accounts model as follows (simplified):

class Account < ActiveRecord::Base
    attr_accessible :account_number, :display_name, :master_account_id

    has_many :child_accounts, :class_name => "Account", :foreign_key => "id"
    belongs_to :master_account, :class_name => "Account", :foreign_key => "master_account_id"
end

@ account.master_account 目前工作正常，但我也希望能够访问 @ account.child_accounts - 我需要做什么才能做修复

@account.master_account is currently working correctly, but I also want to be able to access @account.child_accounts - what do I need to do in order to fix that?

推荐答案

我认为它是圆的另一种方式：

I think it has to be the other way round:

class Account < ActiveRecord::Base
  has_many :child_accounts, :class_name => "Account", :foreign_key => "master_account_id"
  belongs_to :master_account, :class_name => "Account"
end

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