Django model field reference

Question

I have contact model

class Contact(models.Model):
    company = models.CharField(max_length=200, blank=True)
    vatkey = models.CharField(max_length=200, blank=True)

Can i set reference that : when company name is not empty then vatkey is required ?

regards

Possible duplicate of [Can I make at least one field a requirement on a Django Model?](https://stackoverflow.com/questions/31831620/can-i-make-at-least-one-field-a-requirement-on-a-django-model) — Zernike, May 28 '17 at 12:59

score 1 · Accepted Answer · answered May 28 '17 at 10:54

1

Use Django Validatiors.

from django.core.exceptions import ValidationError

class Contact(models.Model):

     ...
     def clean(self):
         if self.company and not self.vatkey:
            raise ValidationError('Vatkey is required')

answered May 28 '17 at 10:54

Sagar

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Django model field reference

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