scinote-web/app/controllers/active_storage/representations_controller.rb

41 lines
1.1 KiB
Ruby
Raw Normal View History

# frozen_string_literal: true
module ActiveStorage
2019-10-03 17:00:59 +08:00
class RepresentationsController < CustomBaseController
include ActiveStorage::SetBlob
include ActiveStorage::CheckBlobPermissions
def show
if @blob.attachments.take.record_type == 'Asset'
return render plain: '', status: :accepted unless preview_ready?
end
2019-09-12 23:21:48 +08:00
expires_in ActiveStorage.service_urls_expire_in
redirect_to @blob.representation(params[:variation_key]).processed.service_url(disposition: params[:disposition])
end
private
def preview_ready?
processing = @blob.attachments.take.record.file_processing
return false if processing
preview_exists =
if @blob.variable?
@blob.service.exist?(@blob.representation(params['variation_key']).key)
else
@blob.preview(params['variation_key']).image.attached?
end
return true if preview_exists
unless processing
ActiveStorage::PreviewJob.perform_later(@blob.id)
@blob.attachments.take.record.update(file_processing: true)
end
false
end
end
end