# encoding: utf-8 namespace :member_user_id do task :member_user_id_copy => :environment do puts 'start' @users = User.all @users.each do |user| if user.user_id.blank? @ids = [] @ids = user.email.split("@") user.user_id = @ids[0] user.save else puts 'no data' end end puts 'end' puts @users.count end end