Rework enqueuing system to ensure records got deleted accordingly

[chaadow]

Hi,
I tried this snippet of code as suggested in the readme for enqueuing Algolia operations :

class Contact < ActiveRecord::Base
  include AlgoliaSearch

  algoliasearch enqueue: :trigger_delayed_job do
    attribute :first_name, :last_name, :email
  end

  def self.trigger_delayed_job(record, remove)
    if remove
      record.delay.remove_from_index!
    else
      record.delay.index!
    end
  end
end

My application is running rails 3.2.22 with ruby 2.2.2 and DelayedJob 4.0.6

Without delayed job, the auto_remove works perfectly fine.
However, when I try to remove the project with the enqueuing system set, I get the following error :

ArgumentError:
       job cannot be created for non-persisted record:

after further research, I found this DJ related issue : collectiveidea/delayed_job#820
Is there any workaround to this, since I want to remove my model asynchronously from Algolia only after my project has been deleted

[redox]

That's weird, do you have the associated backtrace? Is it raised from the record.delay.{remove_from_,}index! methods?

[chaadow]

Yes it is raised from record.delay.remove_from_index! When I destroy my model. For example : project.destroy

[chaadow]

@redox Here is an example of a failing spec backtrace :

 Failure/Error: expect { delete :destroy, :id => @project }.to change(Project, :count).by(-1)
     ArgumentError:
       job cannot be created for non-persisted record: #<Project

[redox]

Can you just try to run a record.remove_from_index! and another record.delay.remove_from_index! from the rails console, to check if you're experiencing the same? I'm don't get it right now :/

[chaadow]

record.remove_from_index! works whereas record.delay.remove_from_index! doesn't.

[chaadow]

Actually, it doesn't work only after I destroy the record and the self.trigger_delayed_job is triggered.
Since it's a "remove" it steps in the if remove condition, and finally the exception I told you about above is raised.
When I try without the "delay" it works whereas with the delay it doesn't and it displays this error :

ArgumentError:
       job cannot be created for non-persisted record: #<Project

[redox]

Could you just try with another (non-algolia) method? From what I understand, your Project object cannot be serialized but I don't get why it could be related to the remove_from_index!.

[chaadow]

I am only using what's suggested in the readme for delayedjob. record.delay.remove_from_index! works outside the self.trigger_delayed_job, if I try it in the console. However when I try it after a destroy, for instance : project.destroy, then as I explained,record.delay.remove_from_index! does not work anymore.
Could you try that to see maybe you have to update the example you're suggesting in the readme ?

[chrisyeung1121]

+1. I am having the same problem.

[drewtunney]

I ran into the same issue. The workaround I've used is to delete the record by ID from the index in the background job. It seems to work fine

   def trigger_delayed_job(record, remove)
      if remove
        index = Algolia::Index.new("#{self.name}_#{Rails.env}")
        index.delete_object(record.uuid)
      else
        obj = self.find(record.id)
        obj.index!
      end
    end