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

To disable en-mass callbacks use...

Survey.skip_callback(:save, :before, :calculate_averages)

Then to enable them...

Survey.set_callback(:save, :before, :calculate_average)

This skips/sets for all instances.