feat: add delete method to File API for file removal

Author: liuruibin

apps/knowledge/serializers/file.py

@@ -93,3 +93,11 @@ def get(self, with_valid=True):
                 status=200,
                 headers={'Content-Type': mime_types.get(file_type, 'text/plain')}
             )
+
+        def delete(self):
+            self.is_valid(raise_exception=True)
+            file_id = self.data.get('id')
+            file = QuerySet(File).filter(id=file_id).first()
+            if file is not None:
+                file.delete()
+            return True

apps/knowledge/views/file.py

@@ -40,3 +40,15 @@ class Operate(APIView):
         )
         def get(self, request: Request, file_id: str):
             return FileSerializer.Operate(data={'id': file_id}).get()
+
+        @extend_schema(
+            methods=['DELETE'],
+            summary=_('Get file'),
+            description=_('Get file'),
+            operation_id=_('Get file'),
+            parameters=FileGetAPI.get_parameters(),
+            responses=FileGetAPI.get_response(),
+            tags=[_('File')]
+        )
+        def delete(self, request: Request, file_id: str):
+            return result.success(FileSerializer.Operate(data={'id': file_id}).delete())