namespace :ust do
  desc "TODO"
  task creating: :environment do
  	rls = RouterLocation.all.includes(:visitor_details)
  	rls.each do |rl|
	  	rl.visitor_details.includes(:user_stayed_times).each do |vd|
	  		(vd.user_stayed_times.where(:created_at=>{"$exists"=> false}) || []).each do |ust|
	  			ust.update_attributes({:created_at =>  ust.starttime,:rl_mac_id => rl.mac_id,:vd_mac_id => vd.device_id})
	  		end
	  	end
  	end
  end
end