canvas-lms/db/migrate/20200120224245_create_notif...

45 lines
1.9 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 CreateNotificationPolicyOverrides < ActiveRecord::Migration[5.2]
tag :predeploy
def change
create_table :notification_policy_overrides do |t|
t.belongs_to :context, polymorphic: { default: "Course" },
null: false, index: { name: "index_notification_policy_overrides_on_context" }
t.belongs_to :communication_channel, null: false, foreign_key: true
t.belongs_to :notification, index: true
t.string :workflow_state, default: "active", null: false, index: true
t.string :frequency
t.timestamps
end
add_index :notification_policy_overrides, %i[communication_channel_id notification_id],
name: "index_notification_policies_overrides_on_cc_id_and_notification"
add_index :notification_policy_overrides, %i[context_id context_type communication_channel_id notification_id],
where: "notification_id IS NOT NULL",
unique: true, name: "index_notification_policies_overrides_uniq_context_notification"
add_index :notification_policy_overrides, %i[context_id context_type communication_channel_id],
where: "notification_id IS NULL",
unique: true, name: "index_notification_policies_overrides_uniq_context_and_cc"
end
end