Fix

Author: vsdudakov

docs/index.html

@@ -404,7 +404,7 @@ <h1>FastAdmin | Documentation</h1>
                     </li>
                     <li>
                       <strong>Updated:</strong>
-                      13 April 2026
+                      14 April 2026
                     </li>
                   </ul>
                 </div>
@@ -3378,7 +3378,7 @@ <h3>Methods and Attributes</h3>
         return sort_by
 
     async def serialize_obj_attributes(
-        self, obj: Any, attributes_to_serizalize: list[ModelFieldWidgetSchema]
+        self, obj: Any, attributes_to_serizalize: list[ModelFieldWidgetSchema], list_view: bool = False
     ) -> dict[str, Any]:
         """Serialize orm model obj attribute to dict.
 
@@ -3395,7 +3395,7 @@ <h3>Methods and Attributes</h3>
                 value = format(value, "f")
 
             serialized_dict[field.name] = value
-            if field.form_widget_type in (WidgetType.UploadFile, WidgetType.UploadImage) and value:
+            if not list_view and field.form_widget_type in (WidgetType.UploadFile, WidgetType.UploadImage) and value:
                 serialized_dict[f"{field.name}__url"] = await self.get_file_url(field.name, value, obj)
         if inspect.iscoroutinefunction(obj.__str__):
             str_fn = obj.__str__
@@ -3443,7 +3443,7 @@ <h3>Methods and Attributes</h3>
             else:
                 attributes_to_serizalize.append(field)
 
-        obj_dict.update(await self.serialize_obj_attributes(obj, attributes_to_serizalize))
+        obj_dict.update(await self.serialize_obj_attributes(obj, attributes_to_serizalize, list_view=list_view))
 
         for field_name in fields_for_serialize:
             display_field_function = getattr(self, field_name, None)

fastadmin/api/service.py

@@ -341,6 +341,8 @@ async def upload_file(
 
         try:
             obj = await admin_model.orm_get_obj(id) if id is not None else None
+            if id is not None and obj is None:
+                raise AdminApiException(404, detail=f"{model} with id {id} not found.")
 
             if inspect.iscoroutinefunction(admin_model.upload_file):
                 upload_file_fn = admin_model.upload_file

fastadmin/models/base.py

@@ -375,7 +375,7 @@ def resolve_sort_by(self, sort_by: str) -> str:
         return sort_by
 
     async def serialize_obj_attributes(
-        self, obj: Any, attributes_to_serizalize: list[ModelFieldWidgetSchema]
+        self, obj: Any, attributes_to_serizalize: list[ModelFieldWidgetSchema], list_view: bool = False
     ) -> dict[str, Any]:
         """Serialize orm model obj attribute to dict.
 
@@ -392,7 +392,7 @@ async def serialize_obj_attributes(
                 value = format(value, "f")
 
             serialized_dict[field.name] = value
-            if field.form_widget_type in (WidgetType.UploadFile, WidgetType.UploadImage) and value:
+            if not list_view and field.form_widget_type in (WidgetType.UploadFile, WidgetType.UploadImage) and value:
                 serialized_dict[f"{field.name}__url"] = await self.get_file_url(field.name, value, obj)
         if inspect.iscoroutinefunction(obj.__str__):
             str_fn = obj.__str__
@@ -440,7 +440,7 @@ async def serialize_obj(self, obj: Any, list_view: bool = False) -> dict:
             else:
                 attributes_to_serizalize.append(field)
 
-        obj_dict.update(await self.serialize_obj_attributes(obj, attributes_to_serizalize))
+        obj_dict.update(await self.serialize_obj_attributes(obj, attributes_to_serizalize, list_view=list_view))
 
         for field_name in fields_for_serialize:
             display_field_function = getattr(self, field_name, None)