class AbstractTableMeta(models.Model):
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
created_by = models.ForeignKey(User(),
on_delete=models.DO_NOTHING,
related_name='+')
updated_by = models.ForeignKey(User(),
on_delete=models.DO_NOTHING,
related_name='+')
class Meta:
abstract = True
def clean_updated_by(self):
if not self.cleaned_data['updated_by']:
return User()
return self.cleaned_data['updated_by']