Rails 3 and ActiveSupport::Callbacks

rubyonrails-talk
1

Hi.

Is there a way to access an object within callbacks defined with set_callback (ActiveSupport 3.0.0-beta4, matching Rails 3)?

Use case is as follow:

    require 'active_support'

    class Foo       include ActiveSupport::Callbacks

      define_callbacks :handle_response

      set_callback :handle_response, :after do |response|         # play with the response       end

      # some stuff...

      def list_users         run_callbacks :handle_response do           # this request returns a response           @someapi.get("/some/resource")         end       end     end

    # run     Foo.new.list_users

Currently, in place of |response|, I have |object| as the doc suggests, which is the class object at runtime. AS callbacks are great for after/before/around independant processing, but can they be used for data manipulation hooks? If not, is there an alternative to achieve such an effect?

Thank you!