Ruby on rails Rails使用委托属性验证的唯一性
尝试将作用域:名称设置为视图的父级:窗体上的属性Ruby on rails Rails使用委托属性验证的唯一性,ruby-on-rails,ruby,validation,activerecord,Ruby On Rails,Ruby,Validation,Activerecord,尝试将作用域:名称设置为视图的父级:窗体上的属性 class View < ActiveRecord::Base belongs_to :form delegate :facility_id, to: :form validates_uniqueness_of :name, scope: :facility_id attr_accessible :name 我相信这在一段时间前就已经奏效了,但很可能它现在仍然有效: 验证:名称、作用域的唯一性:{:form=>:facil
class View < ActiveRecord::Base
belongs_to :form
delegate :facility_id, to: :form
validates_uniqueness_of :name, scope: :facility_id
attr_accessible :name
我相信这在一段时间前就已经奏效了,但很可能它现在仍然有效:
验证:名称、作用域的唯一性:{:form=>:facility\u id}
获取类型错误{:form=>:facility\u id}不是符号。
ActiveRecord::StatementInvalid - PG::UndefinedColumn: ERROR: column views.facility_id does not exist