修改月卡的购买限制

share-system/src/main/java/share/system/service/impl/MonthlyCardOrderServiceImpl.java

@@ -135,6 +135,10 @@ public class MonthlyCardOrderServiceImpl extends ServiceImpl<MonthlyCardOrderMap
                 throw new BaseException("请绑定手机号");
             }
         }
+        ConsumerMonthlyCard one = consumerMonthlyCardService.getOne(new LambdaQueryWrapper<ConsumerMonthlyCard>().eq(ConsumerMonthlyCard::getConsumerId, user.getId()));
+        if (ObjectUtil.isNotEmpty(one)) {
+            throw new BaseException("月卡一个月只能购买一次");
+        }
         MonthlyCardOrder monthlyCardOrder = generatMonthlyCarddOrder(request, user);
         monthlyCardOrder.setCreateTime(new Date());
         save(monthlyCardOrder);