How to pass params into a model callback method in rails?

I have an 'after_update' callback method in my model:

after_update :reprocess_image

and I want to pass the params[:member] I collected from my开发者_运维知识库 edit form into this reprocess_image method after updating.

How do I do that?

I would prefer to do this at the instance level. You can use a virtual attribute:

attr_accessor :member

I'm not an experienced railer, but I think it would work if you simply use a property of your model to store this value.

something like:

my_class.member = 'a-member'

class MyClass
  after_update :reprocess_image

  def reprocess_image
    do_something_with_your self.member
  end

end