Fix Login issue

rog/backend.py

@@ -42,15 +42,24 @@ class EmailOrUsernameModelBackend(ModelBackend):
             kwargs = {'username': username}
         try:
             user = CustomUser.objects.get(**kwargs)
-            if check_password(password, user.password):
+            logger.info(f"User found in database: {username}")
+            
+            # パスワード検証の詳細ログ
+            password_valid = check_password(password, user.password)
+            logger.debug(f"Password validation for {username}: {password_valid}")
+            
+            if password_valid:
                 logger.info(f"User authenticated successfully: {username}")
                 return user
             else:
                 logger.warning(f"Password mismatch for user: {username}")
+                logger.debug(f"Provided password length: {len(password) if password else 0}")
         except CustomUser.DoesNotExist:
             logger.warning(f"User does not exist: {username}")
         except Exception as e:
             logger.error(f"Authentication error for {username}: {str(e)}")
+            import traceback
+            logger.error(f"Authentication traceback: {traceback.format_exc()}")
         return None
 
     def get_user(self, user_id):