44 lines
1.6 KiB
Ruby
44 lines
1.6 KiB
Ruby
# Mounted uploaders are destroyed by carrierwave's after_commit
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# hook. This hook fetches upload location (local vs remote) from
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# Upload model. So it's neccessary to make sure that during that
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# after_commit hook model's associated uploads are not deleted yet.
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# IOW we can not use dependent: :destroy :
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# has_many :uploads, as: :model, dependent: :destroy
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#
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# And because not-mounted uploads require presence of upload's
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# object model when destroying them (FileUploader's `build_upload` method
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# references `model` on delete), we can not use after_commit hook for these
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# uploads.
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#
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# Instead FileUploads are destroyed in before_destroy hook and remaining uploads
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# are destroyed by the carrierwave's after_commit hook.
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module WithUploads
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extend ActiveSupport::Concern
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# Currently there is no simple way how to select only not-mounted
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# uploads, it should be all FileUploaders so we select them by
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# `uploader` class
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FILE_UPLOADERS = %w(PersonalFileUploader NamespaceFileUploader FileUploader).freeze
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included do
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has_many :uploads, as: :model
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before_destroy :destroy_file_uploads
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end
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# mounted uploads are deleted in carrierwave's after_commit hook,
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# but FileUploaders which are not mounted must be deleted explicitly and
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# it can not be done in after_commit because FileUploader requires loads
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# associated model on destroy (which is already deleted in after_commit)
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def destroy_file_uploads
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self.uploads.where(uploader: FILE_UPLOADERS).find_each do |upload|
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upload.destroy
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end
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end
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def retrieve_upload(_identifier, paths)
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uploads.find_by(path: paths)
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end
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end
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