canvas-lms/lib/file_in_context.rb

64 lines
2.1 KiB
Ruby

#
# Copyright (C) 2011 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
require 'action_controller_test_process'
# Attaches a file generally to another file, using the attachment_fu gateway.
class FileInContext
class << self
def queue_files_to_delete(queue=true)
@queue_files_to_delete = queue
end
def destroy_queued_files
if @queued_files && !@queued_files.empty?
Attachment.send_later_if_production(:destroy_files, @queued_files.map(&:id))
@queued_files.clear
end
end
def destroy_files(files)
if @queue_files_to_delete
@queued_files ||= []
@queued_files += files
else
files.each{ |f| f.destroy }
end
end
def attach(context, filename, display_name=nil, folder=nil, explicit_filename=nil, allow_rename = false)
display_name ||= File.split(filename).last
uploaded_data = Rack::Test::UploadedFile.new(filename, Attachment.mimetype(explicit_filename || filename))
@attachment = context.attachments.new(:uploaded_data => uploaded_data, :display_name => display_name, :folder => folder)
@attachment.filename = explicit_filename if explicit_filename
@attachment.context = context
@attachment.set_publish_state_for_usage_rights
@attachment.save!
destroy_files(@attachment.handle_duplicates(allow_rename ? :rename : :overwrite, :caller_will_destroy => true))
@attachment
ensure
uploaded_data.close if uploaded_data
end
end
end