Sometimes, we want to add composite primary key in Python Django.

In this article, we’ll look at how to add composite primary key in Python Django.

How to add composite primary key in Python Django?

To add composite primary key in Python Django, we can set the unique_together field in the Meta class in the model class.

For instance, we write

class MyTable(models.Model):
    class Meta:
        unique_together = (('key1', 'key2'),)

    key1 = models.IntegerField(primary_key=True)
    key2 = models.IntegerField()

to set unique_together to (('key1', 'key2'),) to make key1 and key2 part of the composite primary key.

Conclusion

To add composite primary key in Python Django, we can set the unique_together field in the Meta class in the model class.