feat(商城): 首页

金刚位跳转代码优化

waynboot-admin-api/src/main/java/com/wayn/admin/api/controller/shop/ColumnController.java

@@ -44,8 +44,7 @@ public class ColumnController extends BaseController {
             ColumnVO columnVO = new ColumnVO();
             try {
                 BeanUtils.copyProperties(columnVO, item);
-                int count = iColumnGoodsRelationService.count(new QueryWrapper<ColumnGoodsRelation>()
-                        .eq("column_id", item.getId()));
+                Integer count = iColumnGoodsRelationService.getGoodsNum(item.getId());
                 columnVO.setGoodsNum(count);
             } catch (IllegalAccessException e) {
                 e.printStackTrace();

waynboot-common/src/main/java/com/wayn/common/core/mapper/shop/ColumnGoodsRelationMapper.java

@@ -13,4 +13,5 @@ import com.wayn.common.core.domain.shop.ColumnGoodsRelation;
  */
 public interface ColumnGoodsRelationMapper extends BaseMapper<ColumnGoodsRelation> {
 
+    Integer getGoodsNum(Long columnId);
 }

waynboot-common/src/main/java/com/wayn/common/core/service/shop/IColumnGoodsRelationService.java

@@ -13,4 +13,10 @@ import com.wayn.common.core.domain.shop.ColumnGoodsRelation;
  */
 public interface IColumnGoodsRelationService extends IService<ColumnGoodsRelation> {
 
+    /**
+     * 获取栏目配置的商品数量
+     * @param columnId 栏目ID
+     * @return 商品数量
+     */
+    Integer getGoodsNum(Long columnId);
 }

waynboot-common/src/main/java/com/wayn/common/core/service/shop/impl/ColumnGoodsRelationServiceImpl.java

@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.wayn.common.core.domain.shop.ColumnGoodsRelation;
 import com.wayn.common.core.mapper.shop.ColumnGoodsRelationMapper;
 import com.wayn.common.core.service.shop.IColumnGoodsRelationService;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 /**
@@ -17,4 +18,11 @@ import org.springframework.stereotype.Service;
 @Service
 public class ColumnGoodsRelationServiceImpl extends ServiceImpl<ColumnGoodsRelationMapper, ColumnGoodsRelation> implements IColumnGoodsRelationService {
 
+    @Autowired
+    private ColumnGoodsRelationMapper columnGoodsRelationMapper;
+
+    @Override
+    public Integer getGoodsNum(Long columnId) {
+        return columnGoodsRelationMapper.getGoodsNum(columnId);
+    }
 }

waynboot-common/src/main/resources/mapper/shop/ColumnGoodsRelationMapper.xml

@@ -11,8 +11,13 @@
 
     <!-- 通用查询结果列 -->
     <sql id="Base_Column_List">
-        id,
+        select id,
         column_id, goods_id
+        from shop_column_goods_relation
     </sql>
+    <select id="getGoodsNum" resultType="java.lang.Integer">
+        SELECT count(1)
+        FROM (SELECT COUNT(1) FROM shop_column_goods_relation WHERE column_id = #{columnId} GROUP BY goods_id) a
+    </select>
 
 </mapper>