在ActiveModel中使用before_validation等的正确方法是什么

Question

我应该延长或包括ActiveModel:Validations:Callbacks:ClassMethods或ActiveModel:Validations:Callbacks？

Answer 1

我让它像这样工作:

class Foo
  extend ActiveModel::Callbacks
  include ActiveModel::Validations
  include ActiveModel::Validations::Callbacks

  before_validation :bar

  def bar
    # callback logic here
  end
end

重要的是你要按照这个顺序拥有一切.