Ruby Mongoid嵌入文档的类方法
我希望将所有特定于身份验证的代码保存在定义身份验证“模型”的文件中,如下所示:Ruby Mongoid嵌入文档的类方法,ruby,mongoid,Ruby,Mongoid,我希望将所有特定于身份验证的代码保存在定义身份验证“模型”的文件中,如下所示: class User include Mongoid::Document embeds_one :auth field :username, type: String end class Auth include Mongoid::Document embedded_in :user, inverse_of: :auth field :password def self.login(u
class User
include Mongoid::Document
embeds_one :auth
field :username, type: String
end
class Auth
include Mongoid::Document
embedded_in :user, inverse_of: :auth
field :password
def self.login(user, pass)
User.first(conditions: { username: user, password: pass })
end
end
问题出在哪里?无法调用嵌入文档的类方法:
> Auth.login('user', 'pass')
Mongoid::Errors::InvalidCollection: Access to the collection for Auth is not allowed since it is an embedded document, please access a collection from the root document.
> User.auth.login('user', 'pass')
NoMethodError: undefined method `auth' for User:Class
嵌入式
Mongoid::Document
模型中的单例方法不是一个好主意?您不能像第一次尝试的那样直接访问嵌入式文档Auth.loggin('user','pass')
。在这样的嵌入式文档模型中,应该只有实例方法
def self.login(user, pass)
User.first(conditions: { username: user, password: pass })
end
@user.auth.login('user','pass')
并且可以像这样通过用户对象访问它
def self.login(user, pass)
User.first(conditions: { username: user, password: pass })
end
@user.auth.login('user','pass')