discourse/db/migrate/20160215075528_add_unread_pm_index_to_notifications.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

9 lines
325 B
Ruby

# frozen_string_literal: true
class AddUnreadPmIndexToNotifications < ActiveRecord::Migration[4.2]
def change
# create index idxtmp on notifications(user_id, id) where notification_type = 6 AND NOT read
add_index :notifications, [:user_id, :id], unique: true, where: 'notification_type = 6 AND NOT read'
end
end