gitlab-org--gitlab-foss/app/models/concerns/with_uploads.rb

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# frozen_string_literal: true
# Mounted uploaders are destroyed by carrierwave's after_commit
# hook. This hook fetches upload location (local vs remote) from
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# Upload model. So it's necessary to make sure that during that
# after_commit hook model's associated uploads are not deleted yet.
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# IOW we can not use dependent: :destroy :
# has_many :uploads, as: :model, dependent: :destroy
#
# And because not-mounted uploads require presence of upload's
# object model when destroying them (FileUploader's `build_upload` method
# references `model` on delete), we can not use after_commit hook for these
# uploads.
#
# Instead FileUploads are destroyed in before_destroy hook and remaining uploads
# are destroyed by the carrierwave's after_commit hook.
module WithUploads
extend ActiveSupport::Concern
include FastDestroyAll::Helpers
include FeatureGate
# Currently there is no simple way how to select only not-mounted
# uploads, it should be all FileUploaders so we select them by
# `uploader` class
FILE_UPLOADERS = %w(PersonalFileUploader NamespaceFileUploader FileUploader).freeze
included do
has_many :uploads, as: :model
has_many :file_uploads, -> { where(uploader: FILE_UPLOADERS) },
class_name: 'Upload', as: :model,
dependent: :delete_all # rubocop:disable Cop/ActiveRecordDependent
use_fast_destroy :file_uploads
end
def retrieve_upload(_identifier, paths)
uploads.find_by(path: paths)
end
end