#

classifier_routes.py

@@ -257,7 +257,22 @@ def extract_and_classify_all(session_id):
 
                     new_subject = item.get('subject')
                     new_chapter = item.get('chapter_title')
-                    
+
+                    # Ensure new_subject and new_chapter are strings, not lists
+                    if isinstance(new_subject, list):
+                        new_subject = ', '.join(str(x) for x in new_subject) if new_subject else 'Unclassified'
+                    elif new_subject is None:
+                        new_subject = 'Unclassified'
+                    else:
+                        new_subject = str(new_subject)
+
+                    if isinstance(new_chapter, list):
+                        new_chapter = ', '.join(str(x) for x in new_chapter) if new_chapter else 'Unclassified'
+                    elif new_chapter is None:
+                        new_chapter = 'Unclassified'
+                    else:
+                        new_chapter = str(new_chapter)
+
                     if new_subject and new_subject != 'Unclassified' and new_chapter and new_chapter != 'Unclassified':
                         conn.execute('UPDATE questions SET subject = ?, chapter = ? WHERE image_id = ?', (new_subject, new_chapter, matched_id))
                         batch_update_count += 1