Class: ActiveStorage::Attachment

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
ActiveModel::ForbiddenAttributesProtection
Defined in:
app/models/active_storage/attachment.rb

Overview

Attachments associate records with blobs. Usually that’s a one record-many blobs relationship, but it is possible to associate many different records with the same blob. If you’re doing that, you’ll want to declare with ‘has_one/many_attached :thingy, dependent: false`, so that destroying any one record won’t destroy the blob as well. (Then you’ll need to do your own garbage collecting, though).

Instance Method Summary collapse

Instance Method Details

#purge ⇒ Object

Purging an attachment will purge the blob (delete the file on the service, then destroy the record) and then destroy the attachment itself.



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# File 'app/models/active_storage/attachment.rb', line 22

def purge
  blob.purge
  destroy
end

#purge_later ⇒ Object

Purging an attachment means purging the blob, which means talking to the service, which means talking over the internet. Whenever you’re doing that, it’s a good idea to put that work in a job, so it doesn’t hold up other operations. That’s what #purge_later provides.



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# File 'app/models/active_storage/attachment.rb', line 30

def purge_later
  ActiveStorage::PurgeAttachmentWorker.perform_async(self.id)
end