#3 修正

models.py

@@ -39,7 +39,7 @@ class Query (Model):
     @property
     def user (
             self,
-    ) -> User | None:
+    ) -> User:
         return self.belongs_to (User)
 
     @property

queries_to_answers.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 import random
 from datetime import datetime
 from enum import Enum
+from typing import cast
 
 from eloquent import DatabaseManager, Model
 
@@ -25,9 +26,9 @@ def main (
     else:
         message = [{ 'type': 'text', 'text': query.content },
                    { 'type': 'image_url', 'image_url': query.image_url }]
-    user: User | None = query.user
+    user: User = query.user
     user_name: str | None = None
-    if user is not None:
+    if query.user_id is not None:
         user_name = user.name
     histories: list[dict[str, str]] = []
     for history in query.answer_histories: