更新时间：2022-04-19 00:18:40
类UsersGroups 应类UsersGroup 。 ActiveRecord的模型是奇异 - 的表具有多个
类UsersGroups
类UsersGroup
class UsersGroups should be class UsersGroup. ActiveRecord models are singular - the tables are plural.
class UsersGroups
class UsersGroup
扶手：为什么＆QUOT;的has_many ...：通过=＆GT; ...＆QUOT;协会结果＆QUOT; NameError：未初始化不断...＆QUOT;
