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src/main/java/com/ai/da/mapper/primary/CollectionSortMapper.java

@@ -9,7 +9,7 @@ import org.apache.ibatis.annotations.Update;
 import java.util.List;
 
 public interface CollectionSortMapper extends CommonMapper<CollectionSort> {
-    @Update("UPDATE collection_sort SET sort = sort + 1 " +
+    /*@Update("UPDATE collection_sort SET sort = sort + 1 " +
             "WHERE parent_id = #{parentId} " +
             "AND relation_type != 'Design' " +
             "AND sort > #{originalSort}")
@@ -17,6 +17,15 @@ public interface CollectionSortMapper extends CommonMapper<CollectionSort> {
             @Param("parentId") Long parentId,
             @Param("relationType") String relationType,
             @Param("originalSort") int originalSort
+    );*/
+    @Update("UPDATE collection_sort SET sort = sort + 1 " +
+            "WHERE parent_id = #{parentId} " +
+            "AND relation_type != 'Design' " +
+            "AND sort > #{originalSort} " +
+            "ORDER BY sort DESC")  // 关键：按排序号倒序更新
+    void increaseGenerateSortAbove(
+            @Param("parentId") Long parentId,
+            @Param("originalSort") int originalSort
     );
 
     @Select("SELECT * FROM collection_sort WHERE parent_id IN (SELECT id FROM collection_sort WHERE relation_id = #{relationId})")