Django - Custom model field with default value

Question

How can I set default value for timestp field ?

Default value > 'NOW()'

class Timestamp(models.Field):
    def db_type(self, connection):
        return 'timestamp'


class MyModel(Model):
    # ...
    my_field = Timestamp()

check this one docs.djangoproject.com/en/4.0/ref/models/fields/#datetimefield — Shima Fallah
– Shima Fallah, Commented Jun 10, 2022 at 9:39

enes islam · Accepted Answer · 2022-06-10 09:54:34Z

1

You don't need to write a class for this. Django has auto_now_add attribute.

class MyModel(Model):
    # ...
    my_field = models.DateTimeField(auto_now_add=True, blank=True)

    #To save without timezone override the save method
    def save(self, *args, **kwargs):
        self.my_field = self.my_field.replace(tzinfo=None)
        super(MyModel, self).save(*args, **kwargs)

edited Jun 10, 2022 at 9:54

answered Jun 10, 2022 at 9:27

enes islam

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2 Comments

PiHPY Over a year ago

I want datetime without zone. DateTimeField create field with timestampz.

PiHPY Over a year ago

its not a good idea in large applications with fifty models.

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