canvas-lms/db/migrate/20231206164010_change_assig...

44 lines
2.0 KiB
Ruby

# frozen_string_literal: true
# Copyright (C) 2023 - present 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/>.
class ChangeAssignmentOverridesCheckConstraint < ActiveRecord::Migration[7.0]
tag :predeploy
disable_ddl_transaction!
def up
remove_check_constraint(:assignment_overrides, name: "require_quiz_or_assignment_or_module", if_exists: true)
# Split constraint creation and validation to reduce exclusive locking time
add_check_constraint(:assignment_overrides,
"workflow_state='deleted' OR assignment_id IS NOT NULL OR quiz_id IS NOT NULL OR context_module_id IS NOT NULL OR wiki_page_id IS NOT NULL OR discussion_topic_id IS NOT NULL OR attachment_id IS NOT NULL",
name: :require_association,
if_not_exists: true,
validate: false)
validate_constraint(:assignment_overrides, :require_association)
end
def down
remove_check_constraint(:assignment_overrides, name: "require_association", if_exists: true)
add_check_constraint(:assignment_overrides,
"workflow_state='deleted' OR quiz_id IS NOT NULL OR assignment_id IS NOT NULL OR context_module_id IS NOT NULL",
name: :require_quiz_or_assignment_or_module,
if_not_exists: true,
validate: false)
validate_constraint(:assignment_overrides, :require_quiz_or_assignment_or_module)
end
end