课程目录列表-配置购买人数

src/main/java/com/peanut/modules/common/entity/CourseCatalogueEntity.java

@@ -55,4 +55,9 @@ public class CourseCatalogueEntity{
      */
     @TableField(exist = false)
     private List<ShopProduct> productList;
+    /**
+     * 购买人数
+     */
+    @TableField(exist = false)
+    private int buyPeoples;
 }

src/main/java/com/peanut/modules/master/service/impl/CourseCatalogueServiceImpl.java

@@ -44,6 +44,10 @@ public class CourseCatalogueServiceImpl extends ServiceImpl<CourseCatalogueDao,
             shopProductCourseEntityMPJLambdaWrapper.eq(ShopProductCourseEntity::getCatalogueId,c.getId());
             List<ShopProduct> shopProducts = shopProductCourseDao.selectJoinList(ShopProduct.class, shopProductCourseEntityMPJLambdaWrapper);
             c.setProductList(shopProducts);
+            //配置购买人数
+            MPJLambdaWrapper<UserCourseBuyEntity> wrapper = new MPJLambdaWrapper<>();
+            wrapper.eq(UserCourseBuyEntity::getCatalogueId,c.getId());
+            c.setBuyPeoples(userCourseBuyDao.selectList(wrapper).size());
         }
         return list;
     }