If you are creating a model in Django, Django automatically defines a primary key field called
id in the database for that model. But in some cases, you might want to specify your own
id field as primary key. It is easy peasy to do in Django, let’s have a look at it.
from uuid import uuid4 from django.db import models class Book(models.Model): id = models.UUIDField(primary_key=True, default=uuid4, editable=False) ...
In the above example, we are using a
UUIDField as our primary key field i.e.
id , also it is to notice that we are providing a default value to the
uuid4 which is imported from the
If you want a field to be primary key in Django, you have to specify the
primary_key=True as an argument in that field. Keep in mind that Django does not allow to have more than one primary keys, although it allows you to specify unique fields.
Any thoughts? Write it down in the comments.
For more such crispy blogs daily, follow Dev.Junction, subscribe to our newsletter and get notified.