canvas-lms/db/migrate/20171208202812_create_discu...

51 lines
2.2 KiB
Ruby

# Copyright (C) 2017 - 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 CreateDiscussionTopicSectionVisibilities < ActiveRecord::Migration[5.0]
tag :predeploy
def up
create_table :discussion_topic_section_visibilities do |t|
t.integer :discussion_topic_id, null: false, limit: 8
t.integer :course_section_id, null: false, limit: 8
t.timestamps null: false
t.string :workflow_state, null: false, limit: 255
end
add_foreign_key :discussion_topic_section_visibilities, :discussion_topics
add_foreign_key :discussion_topic_section_visibilities, :course_sections
add_index :discussion_topic_section_visibilities, :discussion_topic_id,
name: "idx_discussion_topic_section_visibility_on_topic"
add_index :discussion_topic_section_visibilities, :course_section_id,
name: "idx_discussion_topic_section_visibility_on_section"
add_column :discussion_topics, :is_section_specific, :boolean
change_column_default :discussion_topics, :is_section_specific, false
end
def down
remove_column :discussion_topics, :is_section_specific
remove_index(:discussion_topic_section_visibilities,
{ :name=>"idx_discussion_topic_section_visibility_on_section" })
remove_index(:discussion_topic_section_visibilities,
{ :name=>"idx_discussion_topic_section_visibility_on_topic" })
remove_foreign_key(:discussion_topic_section_visibilities, :course_sections)
remove_foreign_key(:discussion_topic_section_visibilities, :discussion_topics)
drop_table(:discussion_topic_section_visibilities, { :id => :bigserial })
end
end