47 lines
1.7 KiB
Ruby
47 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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#
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# Copyright (C) 2021 - present Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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class AddCourseTemplateColumns < ActiveRecord::Migration[6.0]
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tag :predeploy
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disable_ddl_transaction!
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def up
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new_pg = connection.postgresql_version >= 110000
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defaults = new_pg ? { default: false, null: false } : {}
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add_column :courses, :template, :boolean, if_not_exists: true, **defaults
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add_index :courses, :root_account_id, where: "template", algorithm: :concurrently, if_not_exists: true
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add_reference :accounts, :course_template,
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if_not_exists: true,
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index: { where: "course_template_id IS NOT NULL", algorithm: :concurrently, if_not_exists: true },
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foreign_key: { to_table: :courses }
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unless new_pg
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change_column_default :courses, :template, false
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DataFixup::BackfillNulls.run(Course, :template, default_value: false)
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change_column_null :courses, :template, false
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end
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end
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def down
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remove_column :courses, :template
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remove_column :accounts, :course_template_id
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end
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end
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