ruby-on-rails - 不同命名空间中的关系

Question

我对如何在不同命名空间中的模型之间定义关系有点困惑。我创建了这个示例来说明我的问题，并根据我的要求添加了评论。

class User < ActiveRecord::Base
  has_one :account # meaning Account
end

class Account < ActiveRecord::Base
  belongs_to :user # meaning User
  has_many :campaigns # meaning campaigns
  has_one :account # meaning SomeCollection::Account
end

class Campaign < ActiveRecord::Base
  belongs_to :account # meaning Account
end

class SomeCollection::Account < ActiveRecord::Base
  belongs_to :account # meaning Account
  has_many :campaigns # meaning SomeCollection::Campaign
end

class SomeCollection::Campaign < ActiveRecord::Base
  belongs_to :account # meaning SomeCollection::Account
end

我最困惑的是Account 和SomeCollection::Account 之间的关系。我希望访问这样的一个实例 -

account.some_collection_account
# => <SomeCollection::Account ...>

Answer 1

您可以为每个关联指定一个类名，并像这样选择关联名称:

has_one :some_collection_account, class_name: 'SomeCollection::Account'