def to_python(self, value):
"""
Validates that float() can be called on the input. Returns the result
of float(). Returns None for empty values.
"""
value = super(IntegerField, self).to_python(value)
if value in validators.EMPTY_VALUES:
return None
if self.localize:
value = formats.sanitize_separators(value)
try:
value = float(value)
except (ValueError, TypeError):
raise ValidationError(self.error_messages['invalid'])
return value
def to_python(self, value):
"""
Validates that the input is a decimal number. Returns a Decimal
instance. Returns None for empty values. Ensures that there are no more
than max_digits in the number, and no more than decimal_places digits
after the decimal point.
"""
if value in validators.EMPTY_VALUES:
return None
if self.localize:
value = formats.sanitize_separators(value)
value = smart_text(value).strip()
try:
value = Decimal(value)
except DecimalException:
raise ValidationError(self.error_messages['invalid'])
return value
