Rails 4: Skip callback

Question

I have an auction and a bid object in my application, when someone presses the BID BUTTON it then calls the BID CREATE controller which cre

Answer 1

ActiveSupport::Callbacks::ClassMethods#skip_callback is not threadsafe, it will remove callback-methods for time till it is being executed and hence and another thread at same time cannot get the callback-methods for execution.

Look at the informative post by Allerin - SAVE AN OBJECT SKIPPING CALLBACKS IN RAILS APPLICATION

Answer 2

You can try skipping callback with skip_callback

http://www.rubydoc.info/docs/rails/4.0.0/ActiveSupport/Callbacks/ClassMethods:skip_callback

Answer 3

skip_callback is a complicated and not granular option.

I prefer to use an attr_accessor:

attr_accessor :skip_my_method, :skip_my_method_2
after_save{ my_method unless skip_my_method }
after_save{ my_method_2 unless skip_my_method_2 }

That way you can be declarative when skipping a callback:

model.create skip_my_method: true # skips my_method
model.create skip_my_method_2: true # skips my_method_2

Answer 4

You can use update_columns See this http://edgeguides.rubyonrails.org/active_record_callbacks.html#skipping-callbacks

Is there any specific condition like when you don't have endtime then only you need to set end time if that the you can do

def set_endtime 
   if endtime.nil? 
     self.endtime=self.starttime+self.auctiontimer 
   end 
end 

OR

before_update :set_endtime if: Proc.new { |obj| obj.endtime.nil? }