discourse/db/migrate/20140705081453_index_user_badges.rb

# frozen_string_literal: true

class IndexUserBadges < ActiveRecord::Migration[4.2]
  def change
    execute 'DELETE FROM user_badges USING user_badges ub2
             WHERE  user_badges.badge_id = ub2.badge_id AND
                    user_badges.user_id = ub2.user_id AND
                    user_badges.post_id IS NOT NULL AND
                    user_badges.id < ub2.id
    '
    add_index :user_badges, [:badge_id, :user_id, :post_id], unique: true, where: 'post_id IS NOT NULL'
  end
end
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 2019-05-03 06:17:27 +08:00			`# frozen_string_literal: true`

Fix all the errors to get our tests green on Rails 5.1. 2017-08-31 12:06:56 +08:00			`class IndexUserBadges < ActiveRecord::Migration[4.2]`
FIX: correct duplicate granting 2014-07-05 16:32:06 +08:00			`def change`
			`execute 'DELETE FROM user_badges USING user_badges ub2`
			`WHERE user_badges.badge_id = ub2.badge_id AND`
			`user_badges.user_id = ub2.user_id AND`
			`user_badges.post_id IS NOT NULL AND`
			`user_badges.id < ub2.id`
			`'`
			`add_index :user_badges, [:badge_id, :user_id, :post_id], unique: true, where: 'post_id IS NOT NULL'`
			`end`
			`end`