Login

Validating Model subclass

Author:
slacy
Posted:
January 24, 2012
Language:
Python
Version:
Not specified
Score:
0 (after 0 ratings)

If you inherit from ValidatedModel instead of from models.Model, then full_clean() will be called before save().

So, add validators to your field definitions, and all your fields will be validated before they go to the database.

The same thing can be accomplished with a pre_save signal, but the code is quite a bit messier than the simple inheritance above.

1
2
3
4
5
6
7
class ValidatedModel(models.Model):
    def save(self, *args, **kwargs):
        self.full_clean()
        super(ValidatedModel, self).save(*args, **kwargs)

    class Meta:
        abstract = True

More like this

  1. Image compression before saving the new model / work with JPG, PNG by Schleidens 4 days, 14 hours ago
  2. Help text hyperlinks by sa2812 1 month ago
  3. Stuff by NixonDash 3 months, 1 week ago
  4. Add custom fields to the built-in Group model by jmoppel 5 months, 1 week ago
  5. Month / Year SelectDateWidget based on django SelectDateWidget by pierreben 8 months, 3 weeks ago

Comments

Please login first before commenting.