ruby on rails has_many：通过关联，具有两个具有相同模型的列
|
我有以下模型：
class UserShareTag < ActiveRecord::Base
attr_protected :sharee_id, :post_id, :sharer_id
belongs_to :sharer, :class_name => \"User\"
belongs_to :post
belongs_to :sharee, :class_name => \"User\"
validates :sharer_id, :presence => true
validates :sharee_id, :presence => true
validates :post_id, :presence => true
end
has_many :user_share_tags, :dependent => :destroy
has_many :user_sharers, :through => :user_share_tags, :uniq => true, :class_name => \"User\"
has_many :user_sharees, :through => :user_share_tags, :uniq => true, :class_name => \"User\"
has_many :user_share_tags, :dependent => :destroy
has_many :user_shared_posts, :through => :user_share_tags, :uniq => true, :class_name => \"Post\"
has_many :recommended_posts, :through => :user_share_tags, :uniq => true, :class_name => \"Post\"
没有找到相关结果
已邀请:
1 个回复
慷祈霖黑
关联中添加一个参数（并且不需要选项）：然后，在您的模型中，您需要一个额外的关联：