module RecordsUploads module Concern extend ActiveSupport::Concern attr_accessor :upload included do after :store, :record_upload before :remove, :destroy_upload end # After storing an attachment, create a corresponding Upload record # # NOTE: We're ignoring the argument passed to this callback because we want # the `SanitizedFile` object from `CarrierWave::Uploader::Base#file`, not the # `Tempfile` object the callback gets. # # Called `after :store` def record_upload(_tempfile = nil) return unless model return unless file && file.exists? Upload.transaction do uploads.where(path: upload_path).delete_all upload.delete if upload self.upload = build_upload.tap(&:save!) end end def upload_path File.join(store_dir, filename.to_s) end private def uploads Upload.order(id: :desc).where(uploader: self.class.to_s) end def build_upload Upload.new( uploader: self.class.to_s, size: file.size, path: upload_path, model: model, mount_point: mounted_as ) end # Before removing an attachment, destroy any Upload records at the same path # # Called `before :remove` def destroy_upload(*args) return unless file && file.exists? self.upload = nil uploads.where(path: upload_path).delete_all end end end