How to save a model without running callbacks in Rails

Question

I need to calculate values when saving a model in Rails. So I call calculate_averages as a callback for a Survey class:

before_save         


        

Answer 1

For Rails 3 ActiveSupport::Callbacks gives you the necessary control. You can reset_callbacks en-masse, or use skip_callback to disable judiciously like this:

Vote.skip_callback(:save, :after, :add_points_to_user)

…after which you can operate on Vote instances with :add_points_to_user inhibited