No, there is no limit for textfield. But you can do the hack using this:
from django.core.validators import MaxLengthValidator
class Comment(models.Model):
comment = models.TextField(validators=[MaxLengthValidator(200)])
On Mon, Jan 6, 2020 at 10:11 AM Mike Dewhirst <mi...@dewhirst.com.au> wrote:
> On 6/01/2020 2:24 pm, אורי wrote:
> > Django users,
> >
> > Is there a default max length for TextField which is enforced in the
> > database? We are using PostgreSQL and I don't want users (hackers) to
> > flood our database with megabytes of meaningless text.
>
> Uri
>
> In your model create a clean() method. If it exists [1] this is called
> by django forms prior to a save. If you access the field via an API or
> unit tests you have to call it specifically. In there you can test for a
> maximum size - or anything else really.
>
> class SomeModel(models.Model):
>
> long_text = models.TextField()
>
> def clean(self):
> txt = self.long_text or ""
> if len(txt) > 100000000:
> # this needs to be reported to the user because it will
> prevent saving
> # happens automatically in the Admin ...
> raise ValidationError("Too much meaningless text")
>
>
> [1]
>
> https://docs.djangoproject.com/en/2.2/topics/forms/modelforms/#overriding-the-clean-method
>
> Cheers
>
> Mike
>
>
> >
> > Thanks,
> > Uri.
> > אורי
> > u...@speedy.net <mailto:u...@speedy.net>
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> > <
> https://groups.google.com/d/msgid/django-users/CABD5YeFq%3DUAGJSDvtMJetb4LknvGhCWtK1ie%3DEvUsJVB_n2B4g%40mail.gmail.com?utm_medium=email&utm_source=footer
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