discourse/db/migrate/20120720013733_add_username_lower_to_users.rb

# frozen_string_literal: true

class AddUsernameLowerToUsers < ActiveRecord::Migration[4.2]
  def up
    add_column :users, :username_lower, :string, limit: 20
    execute "update users set username_lower = lower(username)"
    add_index :users, [:username_lower], unique: true
    change_column :users, :username_lower, :string, limit: 20, null: false
  end
  def down
    remove_column :users, :username_lower
  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 08:17:27 +10:00			`# 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 AddUsernameLowerToUsers < ActiveRecord::Migration[4.2]`
Initial release of Discourse 2013-02-05 14:16:51 -05:00			`def up`
			`add_column :users, :username_lower, :string, limit: 20`
			`execute "update users set username_lower = lower(username)"`
Convert a lot of :a => b to a: b and bring peace to the world 2013-03-23 20:32:59 +05:30			`add_index :users, [:username_lower], unique: true`
Initial release of Discourse 2013-02-05 14:16:51 -05:00			`change_column :users, :username_lower, :string, limit: 20, null: false`
			`end`
			`def down`
			`remove_column :users, :username_lower`
			`end`
			`end`