39 lines
1.6 KiB
Ruby
39 lines
1.6 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
#
|
|
# Copyright (C) 2020 - 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 TweakDashboardIndexes < ActiveRecord::Migration[5.2]
|
|
tag :predeploy
|
|
disable_ddl_transaction!
|
|
|
|
def up
|
|
remove_index :assignments, algorithm: :concurrently, name: "index_assignments_with_submissions", if_exists: true
|
|
add_index :assignments, :context_id,
|
|
where: "context_type='Course' AND workflow_state<>'deleted'",
|
|
algorithm: :concurrently, name: "index_assignments_active", if_not_exists: true
|
|
add_index :submissions, [:user_id, :course_id],
|
|
where: "(score IS NOT NULL OR grade IS NOT NULL) AND workflow_state<>'deleted'",
|
|
algorithm: :concurrently, name: "index_submissions_with_grade", if_not_exists: true
|
|
end
|
|
|
|
def down
|
|
remove_index :assignments, name: "index_assignments_active", algorithm: :concurrently, if_exists: true
|
|
remove_index :submissions, name: "index_submissions_with_grade", algorithm: :concurrently, if_exists: true
|
|
end
|
|
end
|