确保:添加能力以“确保” ActiveRecords为完整记录-源码

上传者: 42160398 | 上传时间: 2021-02-18 15:07:24 | 文件大小: 15KB | 文件类型: ZIP
保障性 让您确保您拥有期望的课程...类似于 result = value.is_a?(Person) ? value : Person.find(value) 您可以将字段添加到“ ensure_by”( self.primary_key为self.primary_key ),例如 如果将ensure_by :token添加到User类,则User.ensure()起作用User.ensure(:user_id)起作用User.ensure(:token)起作用 如果未找到记录,.ensure()返回nil。如果未找到记录,.ensure!()引发异常 安装 将此行添加到您的应用程序的Gemfile中: gem 'ensurance' 然后执行: $ bundle 用法 在您的Rails应用中...在特定模型或ApplicationRecord include Ensurance以

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