Delete image tags and unlink from images

src/main/kotlin/com/android/trisolarisserver/repo/RoomImageRepo.kt

@@ -42,6 +42,10 @@ interface RoomImageRepo : JpaRepository<RoomImage, UUID> {
     fun existsByRoomIdAndContentHash(roomId: UUID, contentHash: String): Boolean
     fun existsByTagsId(id: UUID): Boolean
 
+    @org.springframework.data.jpa.repository.Modifying
+    @Query(value = "delete from room_image_tag_link where tag_id = :tagId", nativeQuery = true)
+    fun deleteTagLinks(@Param("tagId") tagId: UUID): Int
+
     @Query("select coalesce(max(ri.roomSortOrder), 0) from RoomImage ri where ri.room.id = :roomId")
     fun findMaxRoomSortOrder(@Param("roomId") roomId: UUID): Int