Allow only positive decimal numbers

Question

Within my Django models I have created a decimal field like this:

price = models.DecimalField(_(u'Price'), decimal_places=2, max_digits=12) 

Obviously it makes no sense for the price to be negative or zero. Is there a way to limit the decimal number to only positive numbers?

Or do I have to capture this using form validation?

Answer 1

Use the MinValueValidator.

price = models.DecimalField(_(u'Price'), decimal_places=2, max_digits=12, validators=[MinValueValidator(Decimal('0.01'))]) 

Answer 2

You could do something like this :

# ..... class priceForm(ModelForm):     price = forms.DecimalField(required=False, max_digits=6, min_value=0) 

This, also, is responsible for the validator value of 'price'.