public string Save(PromotionsAmountReduce model)
 {
     model.Replace4MySQL();
     StringBuilder sql = new StringBuilder();
     try
     {
         sql.Append(" insert into promotions_amount_reduce(id,name,delivery_store,group_id,type,amount,quantity,start,end,created,active,status)");
         sql.AppendFormat(" values('{0}','{1}','{2}','{3}','{4}','{5}','{6}','{7}','{8}','{9}','{10}','{11}');",
             model.id, model.name, model.delivery_store, model.group_id, model.type, model.amount,
             model.quantity, CommonFunction.DateTimeToString(model.start), CommonFunction.DateTimeToString(model.end),
             CommonFunction.DateTimeToString(model.created), model.active, model.status);
         return sql.ToString();
     }
     catch (Exception ex)
     {
         throw new Exception("PromotionsAmountReduceDao-->Save-->" + ex.Message + sql.ToString(), ex);
     }
 }
 public string Update(PromotionsAmountReduce model)
 {
     model.Replace4MySQL();
     StringBuilder sql = new StringBuilder();
     try
     {
         sql.Append(" update promotions_amount_reduce set ");
         sql.AppendFormat(" name='{0}',delivery_store='{1}',group_id='{2}',type='{3}',amount='{4}',quantity='{5}',",
             model.name, model.delivery_store, model.group_id, model.type, model.amount, model.quantity);
         sql.AppendFormat(" start='{0}',end='{1}',updatetime='{2}',active='{3}',status='{4}'", CommonFunction.DateTimeToString(model.start),
             CommonFunction.DateTimeToString(model.end),
             CommonFunction.DateTimeToString(model.updatetime), model.active, model.status);
         sql.AppendFormat(" where id='{0}';", model.id);
         return sql.ToString();
     }
     catch (Exception ex)
     {
         throw new Exception("PromotionsAmountReduceDao-->Update-->" + ex.Message + sql.ToString(), ex);
     }
 }