当前分类:active-relation

ruby-on-rails - 保存 Rails 4 对象的集合(强参数)

ruby-on-rails - 链元搜索结果

ruby-on-rails-3 - Ruby on Rails - 如何连接两个表?

ruby-on-rails-3 - 将嵌套模型关联属性与包含匹配

ruby-on-rails - 动态获取rails关联

activerecord - 运行 rake db :create 时出现 Arel 弃用警告

sql - 将 SQL 查询转化为 ActiveRecord Relation

ruby-on-rails - 有没有一种 DRY 方法可以将绑定(bind)变量传递给 AR 关系?

ruby-on-rails - rails : ActiveRecord where vs merge

ruby-on-rails - 如何让 Rails 获得急切的加载计数?

ruby-on-rails - Rails中两个类之间的多个belongs_to关系

ruby-on-rails - rails 3.0.3 - ActiveRecord::Relation,未定义的方法错误

ruby-on-rails - Rails/Arel:将所有记录选择为ActiveRecord::Relation

ruby-on-rails - ActiveRecord 查询联合

ruby-on-rails - 如何使用 ActiveRelation 编写 UNION 链?

activerecord - 如何从 Rails 的查询中排除 id 数组(使用 ActiveRecord)?

ruby-on-rails - rails 3 : How to get all Posts which ids are not in a given list?

ruby-on-rails-3 - Rails 3 多个日期范围内的查询

mysql - Ruby on Rails 中跨 4 个模型的关系

mysql - sql : DISTINCT give me duplicate results

热门标签: