Rails:可以在模块中定义命名范围吗? [英] Rails: Is that possible to define named scope in a module?

问题描述

假设有 3 个模型:A、B 和 C.每个模型都有 x 属性.

Say there are 3 models: A, B, and C. Each of these models has the x attribute.

是否可以在模块中定义命名范围并将此模块包含在 A、B 和 C 中?

Is that possible to define a named scope in a module and include this module in A, B, and C ?

我尝试这样做，但收到一条错误消息，指出无法识别 scope...

I tried to do so and got an error message saying that scope is not recognized...

推荐答案

是的

module Foo
  def self.included(base)
    base.class_eval do
      scope :your_scope, lambda {}
    end
  end
end

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