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28 lines
1.2 KiB
Ruby
28 lines
1.2 KiB
Ruby
require "active_support/core_ext/module/delegation"
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# Attachments associate records with blobs. Usually that's a one record-many blobs relationship,
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# but it is possible to associate many different records with the same blob. If you're doing that,
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# you'll want to declare with `has_one/many_attached :thingy, dependent: false`, so that destroying
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# any one record won't destroy the blob as well. (Then you'll need to do your own garbage collecting, though).
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class ActiveStorage::Attachment < ActiveRecord::Base
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self.table_name = "active_storage_attachments"
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belongs_to :record, polymorphic: true
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belongs_to :blob, class_name: "ActiveStorage::Blob"
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delegate_missing_to :blob
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# Purging an attachment will purge the blob (delete the file on the service, then destroy the record)
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# and then destroy the attachment itself.
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def purge
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blob.purge
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destroy
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end
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# Purging an attachment means purging the blob, which means talking to the service, which means
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# talking over the internet. Whenever you're doing that, it's a good idea to put that work in a job,
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# so it doesn't hold up other operations. That's what #purge_later provides.
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def purge_later
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ActiveStorage::PurgeJob.perform_later(self)
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end
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end
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