默认格式

python/settings.py

@@ -51,8 +51,10 @@ def getSysConfigs(key, item, default=None):
     crud = CRUD(SysConfigs)
     one_item = crud.read(session, conditions={"key": key})
     config = json.loads(one_item.value)
-    if item == "main_image_size":
-        print(item, config.get(item, default))
+    if item == "image_out_format":
+        default_format = config.get(item, default)
+        if default_format == "" or default_format == None:
+            return "png"
     return config.get(item, default)