修改抢单逻辑

src/main/java/com/rj/mapper/LbUserCouponMapper.java

@@ -3,7 +3,23 @@ package com.rj.mapper;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.rj.entity.LbUserCoupon;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
+
+import java.time.LocalDate;
+import java.util.List;
+import java.util.Map;
 
 @Mapper
 public interface LbUserCouponMapper extends BaseMapper<LbUserCoupon> {
+
+    @Select("SELECT user_id, ANY_VALUE(user_phone) AS user_phone, ANY_VALUE(user_nickname) AS user_nickname, " +
+            "ANY_VALUE(parent_phone) AS parent_phone, ANY_VALUE(parent_nickname) AS parent_nickname, " +
+            "YEAR(coupon_date) AS year, MONTH(coupon_date) AS month, " +
+            "SUM(coupon_amount) AS total_amount " +
+            "FROM lb_user_coupon " +
+            "WHERE tenant_id = #{tenantId} " +
+            "AND coupon_date >= #{startDate} " +
+            "AND coupon_date <= #{endDate} " +
+            "GROUP BY user_id, YEAR(coupon_date), MONTH(coupon_date)")
+    List<Map<String, Object>> selectMonthlyAggregation(String tenantId, LocalDate startDate, LocalDate endDate);
 }