39 lines
1.4 KiB
Ruby
39 lines
1.4 KiB
Ruby
#
|
|
# Copyright (C) 2012 - 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 AddUserFollowsTable < ActiveRecord::Migration[4.2]
|
|
tag :predeploy
|
|
|
|
def self.up
|
|
create_table :user_follows do |t|
|
|
t.integer :following_user_id, :limit => 8
|
|
t.string :followed_item_type
|
|
t.integer :followed_item_id, :limit => 8
|
|
|
|
t.timestamps null: true
|
|
end
|
|
# unique index of things a user is following, searchable by thing type
|
|
add_index :user_follows, [:following_user_id, :followed_item_type, :followed_item_id], :unique => true, :name => "index_user_follows_unique"
|
|
# the reverse index -- users who are following this thing
|
|
add_index :user_follows, [:followed_item_id, :followed_item_type], :name => "index_user_follows_inverse"
|
|
end
|
|
|
|
def self.down
|
|
drop_table :user_follows
|
|
end
|
|
end
|