Class: Disqualified::Record

Inherits:
BaseRecord
  • Object
show all
Defined in:
app/models/disqualified/record.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.claim_one!(id: nil) ⇒ Object 



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# File 'app/models/disqualified/record.rb', line 17

def self.claim_one!(id: nil)
  run_id = SecureRandom.uuid
  association =
    Disqualified::Record
      .runnable
      .order(run_at: :asc)
      .limit(1)

  if id
    association = association.where(id:)
  end

  claimed_count = association.update_all(
    locked_by: run_id,
    locked_at: Time.now,
    updated_at: Time.now,
    attempts: Arel.sql("attempts + 1")
  )

  raise Disqualified::Error::NoClaimableJob if claimed_count == 0

  Disqualified::Record.find_by!(locked_by: run_id)
rescue ActiveRecord::RecordNotFound
  raise Disqualified::Error::NoClaimableJob
end

Instance Method Details

#finish ⇒ Object 



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# File 'app/models/disqualified/record.rb', line 56

def finish
  transaction do
    update!(locked_by: nil, locked_at: nil, finished_at: Time.now)
    if sequence_uuid && sequence_step
      Disqualified::SequenceRecord
        .where(uuid: sequence_uuid, current_step: sequence_step)
        .update_all(
          current_step: sequence_step + 1,
          updated_at: Time.now
        )
    end
  end
end

#requeue ⇒ Object 



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# File 'app/models/disqualified/record.rb', line 70

def requeue
  retry_count = attempts - 1
  sleep = (retry_count**4) + 15 + (rand(10) * (retry_count + 1))
  unclaim(next_run_at: Time.now + sleep)
end

#run! ⇒ Object 



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# File 'app/models/disqualified/record.rb', line 43

def run!
  record = self.class.claim_one!(id:)
  begin
    record.send(:instantiate_handler_and_perform_with_args)
  rescue => e
    record.unclaim
    raise e
  else
    record.finish
  end
  record
end

#unclaim(next_run_at: nil) ⇒ Object 



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# File 'app/models/disqualified/record.rb', line 76

def unclaim(next_run_at: nil)
  if next_run_at
    update!(locked_by: nil, locked_at: nil, run_at: next_run_at)
  else
    update!(locked_by: nil, locked_at: nil)
  end
end