Send SMS with twilio

Order.rb

def send_message(cart)
  message = "\nYour order:\n"
  cart.orderlines.each do |orderline|
    message += "* #{orderline.food.name} x #{orderline.quantity} - price: $#{orderline.unit_price}\n"
  end
  message += "\nTotal value: #{cart.orderlines.sum(:unit_price)}"
  @client = Twilio::REST::Client.new ENV['TWILIO_SID'], ENV['TWILIO_TOKEN']
  @client.messages.create(
    from: ENV['TWILIO_TEL'],
    to: phone,
    body: message
  )
end