Class: QueuedTask

Inherits:
ApplicationRecord show all
Defined in:
app/models/queued_task.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.queue(klass, data) ⇒ Object 



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# File 'app/models/queued_task.rb', line 21

def self.queue(klass, data)
  create!(klass: klass, data: data)
end

.queue_unless_already_queued(klass, data) ⇒ Object 



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# File 'app/models/queued_task.rb', line 25

def self.queue_unless_already_queued(klass, data)
  if where(klass: klass.to_s).where('data = ?', data.to_yaml).empty?
    self.queue(klass.to_s, data)
  end
end

Instance Method Details

#dequeue! ⇒ Object 



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# File 'app/models/queued_task.rb', line 31

def dequeue!
  destroy
end

#lock! ⇒ Object 



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# File 'app/models/queued_task.rb', line 9

def lock!
  update_attribute :locked, true
end

#process! ⇒ Object 



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# File 'app/models/queued_task.rb', line 35

def process!
  lock!

  begin
    run!
    dequeue!
  rescue
    raise
  ensure
    unlock! unless destroyed?
  end
end

#run! ⇒ Object 



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# File 'app/models/queued_task.rb', line 17

def run!
  klass.constantize.new(data).run!
end

#unlock! ⇒ Object 



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# File 'app/models/queued_task.rb', line 13

def unlock!
  update_attribute :locked, false
end