1 class GroupOrder
 2   include Mongoid::Document
 3   include Mongoid::Timestamps
 4 
 5   field :order_code, type: String
 6   field :cellphone_num, type: String
 7   field :quantity, type: Integer
 8   field :state, type: String
 9 
10   has_many :verify_serial_nums
11 
12 end

#{self.verify_serial_nums.map(&:code).join(",")}

 1 self.quantity.times do
 2       begin
 3         VerifySerialNum.create({
 4           :code => SecureRandom.uuid.gsub(/-/,"")[0..9],
 5           :group_order => self
 6           })
 7       rescue
 8         redo
 9       end
10     end

content = "兑换码为：'#{self.verify_serial_nums.map(&:code).join(",")}'"
Sender.send_code_channel(content, self.cellphone_num)