In Django, null=True
and blank=True
are two different options that you can use when defining fields in a model to control how the database stores and validates data.
null=True
:
NULL
(empty) value.NULL
in the database.ManyToManyField
.blank=True
:
Here’s a summary of the differences between null=True
and blank=True
:
null=True
.blank=True
.For example, let’s say you have a Django model with a CharField
named title
. Here’s how you might use null=True
and blank=True
:
from django.db import models class Article(models.Model): title = models.CharField(max_length=100, null=True, blank=True)
In this case, null=True
allows the title
field to have NULL values in the database, and blank=True
allows the field to be left blank in forms. This means that both the database column and form field can have empty values without causing issues.
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