openstreetmap-website/db/migrate/013_add_email_valid.rb

class AddEmailValid < ActiveRecord::Migration
  def self.up
    add_column "users", "email_valid", :boolean, :default => false, :null => false
    User.update_all("email_valid = active")
  end

  def self.down
    remove_column "users", "email_valid"
  end
end