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Django: How to set a field to NULL?

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django

django-models

I have a field allow NULL value, but how can I set it back to NULL? not blank

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user469652 Avatar asked Dec 15 '10 04:12

user469652

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How do you set a field to NULL in Django?

One can also add more built-in field validations for applying or removing certain constraints on a particular field. null=True will make the field accept NULL values. Blank values for Django field types such as DateTimeField or ForeignKey will be stored as NULL in the database.

How do you set a field to NULL in Python?

Unlike other programming languages such as PHP or Java or C, Python does not have a null value. Instead, there is the 'None' keyword that you can use to define a null value.

What is nullable field in Django?

“django model fields nullable” Code Answer'sblank determines whether the field will be required in forms. This includes the admin and your custom forms. If blank=True then the field will not be required, whereas if it's False the field cannot be blank.

Is __ NULL Django?

In Django queryset we have __isnull to check if a value is null. Here were filtering all the values from MyModel model, which have an alias = Null. exclude allows you to pass multiple arguments, it will the then check for every argument. If your query is still more complex, you can use Django's Q Objects.

1 Answers

Assign None.​

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Ignacio Vazquez-Abrams Avatar answered Sep 23 '22 03:09

Ignacio Vazquez-Abrams
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