orders_helper.rb

module OrdersHelper
  
  # helper to determine the active order step given :
  # 1. a params[:step]
  # 2. if none, according to the order's state
  def active_step
    @active_step ||= if params[:step]
        params[:step]
      elsif %(opened).include? @order.state
        "1start"
      elsif %(submitted).include? @order.state
        "2price"
      elsif %(evaluated).include? @order.state
        "3bill"
      elsif @order.state=="billed"
        "4payment"
      else
        "5end"
      end
  end
end