forms.py

validate price

def clean(self):
		from decimal import Decimal
		cleaned_data = self.cleaned_data
		price_mode = cleaned_data.get('price_mode')
		price = cleaned_data.get('price')
		if price_mode == u'0':
			if price:
				return self.cleaned_data['price']
				return self.cleaned_data['price_mode']
			else:
				self._errors['price'] = self.error_class([_("Enter valid price!")])
		elif price_mode != u'0' and price:
			if price_mode == u'1':
				self._errors['price'] = self.error_class([_("You select `Free` mode, leave `Price` input empty!")])
			elif price_mode == u'2':
				self._errors['price'] = self.error_class([_("You select `Please Contact` mode, leave `Price` input empty!")])