redis - Rails ActiveJob - how to stop job from being enqueued in before_enqueue -

i running rails 4.2.8 , want make job run under conditions. doing check in code calling job cleaner contain logic in job class. has done that?

class myjob < applicationjob   before_enqueue |job|     # check , stop job being enqueued under conditions   end   def perform(args*)     # code here   end end 

i using sidekiq 4.2.10 background job adapter.

raise exception before_enqueue. info dhh himself: https://groups.google.com/forum/#!topic/rubyonrails-core/mhd4t90g0g4

this intent. never liked how returning false in filter stops execution. there many side effects, @stuff = model.something_returning_false, accidentally halts callback chain. in aj, we're instead going explicit approach requires raise exception, if want stop execution. we'll changing callbacks elsewhere move away "false means halt" in rails 5.0.

before_* indeed intended same writing code before execution, in such way can abstracted , mixed in. can write before_* callbacks in super classes without having child need call super, or in modules mix in.