What are the best practices for handling transactions in Django?

What are the best practices for handling transactions in Django?

When handling transactions in Django, it's important to use the atomic context manager to ensure that your database operations are executed safely. This way, if an error occurs, all changes can be rolled back.

Can you give me an example of using the atomic context manager?

Sure! Here's a simple example:

from django.db import transaction

with transaction.atomic():
    # Your database operations here
    obj1 = Model1.objects.create(field1='value1')
    obj2 = Model2.objects.create(field2='value2')

In this example, if either create operation fails, none of the changes will be saved.

What should I do if I need to handle multiple transactions?

You can nest atomic blocks for handling multiple transactions. Just ensure that you manage the scope correctly to avoid unexpected rollbacks.

Are there any performance considerations I should be aware of?

Yes, keep transactions as short as possible to avoid locking the database for extended periods. Also, be mindful of the number of queries executed within a transaction.