discourse/db/migrate/20130129174845_add_days_visited_to_users.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

10 lines
302 B
Ruby

# frozen_string_literal: true
class AddDaysVisitedToUsers < ActiveRecord::Migration[4.2]
def change
add_column :users, :days_visited, :integer, null: false, default: 0
execute "UPDATE users AS u SET days_visited = (SELECT COUNT(*) FROM user_visits AS uv WHERE uv.user_id = u.id)"
end
end