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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?
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As we know, the <input type="number"> specifies a field for entering a number. If you want to restrict the <input> field to only positive numbers, you can use the min attribute.
You can either use the ROUND function to limit decimal places in Excel, or you can use cell formatting to limit the number of decimal places displayed. While the ROUND function will amend the original value, using cell formatting will retain the exact original value.
Positive decimal first and foremost is a value that is positive. That is, it is greater than 0. In the same way that a negative number is less than 0. Some people tend to consider the only decimal part of 2751.89105 to be the .
Negative and positive decimals can be compared just like fractions. Decimals are a part of a whole just like fractions are a part of a whole. Therefore, a positive decimal is ALWAYS greater than a negative decimal.
Use the MinValueValidator.
price = models.DecimalField(_(u'Price'), decimal_places=2, max_digits=12, validators=[MinValueValidator(Decimal('0.01'))]) 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'.
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