CODEWITHSUNDEEP
djangodatabasedjango-models
Bar Gans
Bar Gans

Reputation: 1683

How to allow just round hour in Django models.TimeField?

I want to add a models.TimeField field to my Django table.

And restrict the user so that he can only add a round hour (e.g. 13:00 but not 13:30).

What is the best way to do this?

Upvotes: 3

Views: 485

Answers (1)

willeM_ Van Onsem
willeM_ Van Onsem

Reputation: 477676

You can define an extra validator [Django-doc]:

from django.core.exceptions import ValidationError

def validate_round_hour(value):
    if not value.minute == value.second == value.microsecond == 0:
        raise ValidationError(
            'This should be a round hour.',
            params={'value': value},
        )

then you can add the validiator to your model field:

class SomeField(models.Model):
    some_time = models.TimeField(validators=[validate_round_hour])

Note that this will not be enforced at the database level. But a form will run the validators, and thus can prevent a user entering invalid data.

Upvotes: 1

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