canvas-lms/db/migrate/20111228210808_add_indexes_...

37 lines
1.2 KiB
Ruby

#
# Copyright (C) 2011 - 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 AddIndexesToPseudonyms < ActiveRecord::Migration[4.2]
tag :predeploy
def self.up
if connection.adapter_name == 'PostgreSQL'
remove_index :pseudonyms, :unique_id
connection.execute("CREATE INDEX index_pseudonyms_on_unique_id ON #{Pseudonym.quoted_table_name} (LOWER(unique_id))")
end
add_index :pseudonyms, :sis_user_id
end
def self.down
remove_index :pseudonyms, :sis_user_id
if connection.adapter_name == 'PostgreSQL'
connection.execute("DROP INDEX index_pseudonyms_on_unique_id")
add_index :pseudonyms, :unique_id
end
end
end