增加可用优惠券数量

src/main/java/com/chaozhanggui/system/cashierservice/controller/UserContoller.java

@@ -34,6 +34,7 @@ import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;
+import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
@@ -79,6 +80,12 @@ public class UserContoller {
         TbShopUser shopUser = shopUserMapper.selectByUserIdAndShopId(userId,shopId);
         return Result.success(CodeEnum.SUCCESS,shopUser);
     }
+
+    @GetMapping("/userCoupon")
+    public Result userCoupon(@RequestParam("userId") String userId ,@RequestParam("shopId") BigDecimal orderNum ) throws Exception {
+        int num = userService.userCoupon(userId,orderNum);
+        return Result.success(CodeEnum.SUCCESS,num);
+    }
     @PostMapping("/modityIntegral")
     public JSONObject modityIntegral(@RequestHeader String token,@RequestBody IntegralVo integralVo ) throws Exception {
         JSONObject jsonObject = TokenUtil.parseParamFromToken(token);

src/main/java/com/chaozhanggui/system/cashierservice/dao/TbSystemCouponsMapper.java

@@ -3,6 +3,7 @@ package com.chaozhanggui.system.cashierservice.dao;
 import com.chaozhanggui.system.cashierservice.entity.TbSystemCoupons;
 import org.apache.ibatis.annotations.Param;
 
+import java.math.BigDecimal;
 import java.util.List;
 
 public interface TbSystemCouponsMapper {
@@ -19,4 +20,6 @@ public interface TbSystemCouponsMapper {
     int updateByPrimaryKey(TbSystemCoupons record);
 
     List<TbSystemCoupons> selectAll(@Param("type") String type);
+
+    int selectByAmount(@Param("orderNum") BigDecimal orderNum);
 }

src/main/java/com/chaozhanggui/system/cashierservice/dao/TbUserCouponsMapper.java

@@ -5,6 +5,7 @@ import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 import org.springframework.stereotype.Component;
 
+import java.math.BigDecimal;
 import java.util.List;
 
 @Component
@@ -25,4 +26,6 @@ public interface TbUserCouponsMapper {
     List<TbUserCoupons> selectByUserId(@Param("userId") String userId,@Param("status")  String status);
 
     TbUserCoupons selectByOrderId(@Param("orderId") Integer orderId);
+
+    int selectByUserIdAndAmount(@Param("userId") String userId, @Param("orderNum") BigDecimal orderNum);
 }

src/main/java/com/chaozhanggui/system/cashierservice/service/UserService.java

@@ -36,6 +36,10 @@ public class UserService {
     @Autowired
     private TbUserInfoMapper userInfoMapper;
     @Autowired
+    private TbUserCouponsMapper userCouponsMapper;
+    @Autowired
+    private TbSystemCouponsMapper systemCouponsMapper;
+    @Autowired
     RedisUtils redisUtils;
 
     public JSONObject modityIntegral(IntegralVo integralVo, String userSign) {
@@ -218,4 +222,10 @@ public class UserService {
         result.put("data", pageInfo);
         return result;
     }
+
+    public int userCoupon(String userId, BigDecimal orderNum) {
+        int userNum = userCouponsMapper.selectByUserIdAndAmount(userId,orderNum);
+        int sysNum = systemCouponsMapper.selectByAmount(orderNum);
+        return  userNum+sysNum;
+    }
 }

src/main/resources/mapper/TbSystemCouponsMapper.xml

@@ -24,6 +24,9 @@
     <select id="selectAll" resultType="com.chaozhanggui.system.cashierservice.entity.TbSystemCoupons">
       select * from tb_system_coupons where status = '0' and name = #{type}
     </select>
+    <select id="selectByAmount" resultType="java.lang.Integer" parameterType="java.math.BigDecimal">
+      select ifnull(count(*),0) from tb_system_coupons where status = '0' and coupons_amount >= #{orderNum}
+    </select>
     <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
     delete from tb_system_coupons
     where id = #{id,jdbcType=INTEGER}

src/main/resources/mapper/TbUserCouponsMapper.xml

@@ -30,7 +30,10 @@
   <select id="selectByOrderId" resultType="com.chaozhanggui.system.cashierservice.entity.TbUserCoupons">
     select * from tb_user_coupons where order_id = #{orderId}
   </select>
-  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
+    <select id="selectByUserIdAndAmount" resultType="java.lang.Integer">
+      select ifnull(count(*),0) from tb_user_coupons where user_id = #{userId} and status = '0' and coupons_amount >= #{orderNum}
+    </select>
+    <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
     delete from tb_user_coupons
     where id = #{id,jdbcType=INTEGER}
   </delete>