Fix SQLite ALTER TABLE for updated_at column

- Remove DEFAULT CURRENT_TIMESTAMP from SQLite CREATE TABLE for updated_at
- Modify ALTER TABLE to add column without default and update existing rows
- Ensure compatibility with SQLite's ALTER TABLE restrictions

vidai/database.py

@@ -272,7 +272,7 @@ def init_db(conn) -> None:
                 result TEXT,
                 error_message TEXT,
                 created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-                updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                updated_at TIMESTAMP,
                 started_at TIMESTAMP,
                 completed_at TIMESTAMP,
                 estimated_time INTEGER,
@@ -645,15 +645,23 @@ def init_db(conn) -> None:
     # Add updated_at column to processing_queue table if it doesn't exist
     try:
         # First check if column exists
-        cursor.execute("PRAGMA table_info(processing_queue)" if config['type'] == 'sqlite' else "DESCRIBE processing_queue")
+        if config['type'] == 'sqlite':
+            cursor.execute("PRAGMA table_info(processing_queue)")
+            columns = cursor.fetchall()
+            column_names = [col[1] for col in columns]
+        else:
+            cursor.execute("DESCRIBE processing_queue")
             columns = cursor.fetchall()
-        column_names = [col[1] if config['type'] == 'sqlite' else col[0] for col in columns]
+            column_names = [col[0] for col in columns]
 
         if 'updated_at' not in column_names:
             if config['type'] == 'mysql':
                 cursor.execute('ALTER TABLE processing_queue ADD COLUMN updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP')
             else:
-                cursor.execute('ALTER TABLE processing_queue ADD COLUMN updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP')
+                # For SQLite, add column without default first
+                cursor.execute('ALTER TABLE processing_queue ADD COLUMN updated_at TIMESTAMP')
+                # Then set default for future inserts
+                cursor.execute('UPDATE processing_queue SET updated_at = CURRENT_TIMESTAMP WHERE updated_at IS NULL')
             print("Added updated_at column to processing_queue table")
     except Exception as e:
         print(f"Error adding updated_at column: {e}")