undefined method `destroy_block' for ImageUploader::Attacher:Class

[Parth4582]

Hello All,

My requirement is I want to move the upload and delete images in the background. So, I'm am using backgrounding plugin.
I'm running sidekiq worker in the Attacher.promote block from the ImageUploader model to upload the file and It works fine but when I delete that image from the frontend and submit, then Attacher.destroy or Attacher.destroy_block is not calling. See below my code.

Reference - https://shrinerb.com/docs/plugins/backgrounding

class ImageUploader < BaseUploader
 
  plugin :backgrounding
  Attacher.validate do
    validate_max_size self.class.module_parent::MAX_SIZE
    validate_mime_type %w[image/jpeg image/png image/webp image/tiff]
    validate_extension %w[jpg jpeg png webp tiff tif]
  end

  Attacher.promote do
    PromoteJob.perform_async(self.class.name, record.class.name, record.id, name, file_data)
  end

  Attacher.destroy do
    DestroyJob.perform_async(self.class.name, data)
  end

One more error in the below code - undefined method from_data

class DestroyJob
  include Sidekiq::Worker
 
  def perform(attacher_class, data)
    attacher_class = Object.const_get(attacher_class)
 
    attacher = attacher_class.from_data(data)
    attacher.destroy
  end
end

Please help. Thanks

[Ben Koshy]

@ParthivSavani

It's very hard to debug this. Reproducing the problem would be very helpful. Here is a branch I have created with things set up for sidekiq testing (it's not ideal, but it is a starting point): https://github.com/BKSpurgeon/debugging-shrine-example/tree/debug-promotion-problem - would you be able to play around with it to see if you can reproduce the problem - or to otherwise reproduce your problem? I'll try and come back to that particular template when I get a clear opportunity.

Also if you are deleting things on the client side why not consider using the remove attachments plugin: https://shrinerb.com/docs/plugins/remove_attachment

[Janko Marohnić]

@ParthivSavani I think you might be using an older version of Shrine, as you seem to be mixing 2.x and 3.x backgrounding APIs. In Shrine 3.x Attacher.destroy_block is definitely defined by the background, and Attacher.from_data is part of the core Shrine API.