How do I handle data conflicts in Django?

How do I handle data conflicts in Django?

In Django, you can handle data conflicts using transactions and the select_for_update method to lock rows.

Can you explain how select_for_update works?

Sure! select_for_update locks the selected rows until the end of the transaction, preventing other transactions from modifying them.

What happens if two users try to update the same record?

If two users try to update the same record, one will succeed while the other will receive a DatabaseError due to the lock.

How can I handle the DatabaseError in my code?

You can catch the DatabaseError in a try-except block and implement a retry mechanism or notify the user.