优化目录移除时默认目录的选择

src/main/java/com/genersoft/iot/vmp/storager/IVideoManagerStorager.java

@@ -470,4 +470,6 @@ public interface IVideoManagerStorager {
 	void delCatalogByPlatformId(String serverGBId);
 
 	void delRelationByPlatformId(String serverGBId);
+
+    PlatformCatalog queryDefaultCatalogInPlatform(String platformId);
 }

src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformCatalogMapper.java

@@ -41,4 +41,7 @@ public interface PlatformCatalogMapper {
 
     @Select("SELECT *, (SELECT COUNT(1) from platform_catalog where parentId = pc.id) as childrenCount  FROM platform_catalog pc WHERE pc.platformId=#{platformId}")
     List<PlatformCatalog> selectByPlatForm(String platformId);
+
+    @Select("SELECT pc.* FROM  platform_catalog pc WHERE  pc.id = (SELECT pp.catalogId from parent_platform pp WHERE pp.serverGBId=#{platformId})")
+    PlatformCatalog selectDefaultByPlatFormId(String platformId);
 }

src/main/java/com/genersoft/iot/vmp/storager/impl/VideoManagerStoragerImpl.java

@@ -1058,4 +1058,9 @@ public class VideoManagerStoragerImpl implements IVideoManagerStorager {
 		platformGbStreamMapper.delByPlatformId(serverGBId);
 		platformChannelMapper.delByPlatformId(serverGBId);
 	}
+
+	@Override
+	public PlatformCatalog queryDefaultCatalogInPlatform(String platformId) {
+		return catalogMapper.selectDefaultByPlatFormId(platformId);
+	}
 }