fix downloaders

app/helper/downloader.py

@@ -1,4 +1,7 @@
+from typing import List
+
 from app.db.systemconfig_oper import SystemConfigOper
+from app.schemas.system import DownloaderConf
 from app.schemas.types import SystemConfigKey
 
 
@@ -10,11 +13,11 @@ class DownloaderHelper:
     def __init__(self):
         self.systemconfig = SystemConfigOper()
 
-    def get_downloaders(self) -> dict:
+    def get_downloaders(self) -> List[DownloaderConf]:
         """
         获取下载器
         """
-        downloader_conf: dict = self.systemconfig.get(SystemConfigKey.Downloaders)
-        if not downloader_conf:
-            return {}
-        return downloader_conf
+        downloader_confs: List[dict] = self.systemconfig.get(SystemConfigKey.Downloaders)
+        if not downloader_confs:
+            return []
+        return [DownloaderConf(**conf) for conf in downloader_confs]