修复热销商品bug

forest-admin/admin-server/src/main/java/com/hwrj/cloud/admin/service/impl/CmsSubjectServiceImpl.java

@@ -75,7 +75,7 @@ public class CmsSubjectServiceImpl implements CmsSubjectService {
 
     @Override
     public void relateAndUpdateList(List<CmsSubjectProductRelationInput> productRelationInputs, Long productId) {
-        if (productRelationInputs == null || productRelationInputs.size()<1){
+        if (productRelationInputs == null){
             return;
         }
         List<CmsSubjectProductRelation> productRelationList = relationConvert(productRelationInputs, productId);
@@ -83,8 +83,9 @@ public class CmsSubjectServiceImpl implements CmsSubjectService {
         CmsSubjectProductRelationExample subjectProductRelationExample = new CmsSubjectProductRelationExample();
         subjectProductRelationExample.createCriteria().andProductIdEqualTo(productId);
         subjectProductRelationMapper.deleteByExample(subjectProductRelationExample);
-
-        subjectProductRelationDao.insertList(productRelationList);
+        if(productRelationInputs.size()!=0){
+            subjectProductRelationDao.insertList(productRelationList);
+        }
     }
 
     @Override