From 73ee9bf602f7dccf714ab2104eefe95308a68e05 Mon Sep 17 00:00:00 2001
From: CaptainB <bin@fit2cloud.com>
Date: Wed, 25 Jun 2025 10:55:48 +0800
Subject: [PATCH] fix: replace get_byte() with get_bytes() for consistency in
 file handling

---
 apps/knowledge/serializers/document.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/knowledge/serializers/document.py b/apps/knowledge/serializers/document.py
index fc2d799fd..16e29aade 100644
--- a/apps/knowledge/serializers/document.py
+++ b/apps/knowledge/serializers/document.py
@@ -559,6 +559,8 @@ class DocumentSerializers(serializers.Serializer):
         def download_source_file(self):
             self.is_valid(raise_exception=True)
             file = QuerySet(File).filter(source_id=self.data.get('document_id')).first()
+            if not file:
+                raise AppApiException(500, _('file not exist'))
             return FileSerializer.Operate(id=file.id).get(with_valid=True)
 
         def one(self, with_valid=False):