id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
3238	Add FloatField in newforms	jay.baird@…	Adrian Holovaty	"Not sure if this should be wrapped up in a patch, or what, but I just thought I'd put this out there in case anyone wanted to use it.

{{{
#!python
import re
import decimal
from django.newforms import *

float_regex = re.compile(
    r'\d+.\d+'
)

class FloatField(RegexField):
    def __init__(self, max_digits=None, decimal_places=None,max_value=None, min_value=None, required=True, widget=None, label=None, initial=None):
        self.max_value, self.min_value = decimal.Decimal(max_value or 'inf'), decimal.Decimal(min_value or '-inf')
        self.max_digits, self.decimal_places = max_digits, decimal_places
        RegexField.__init__(self, regex=float_regex, error_message=""Please enter a valid decimal number"", required=required, widget=widget, label=label, initial=initial)
        
    def clean(self, value):
        super(FloatField, self).clean(value)
        digits,decimals = value.split(""."") 
        if not self.required and value in EMPTY_VALUES:
            return u''
        try:
            value = decimal.Decimal(value)
        except:
            raise ValidationError(""Enter a decimal number"")
        if self.max_value is not None and value > self.max_value:
            raise ValidationError(""Ensure that value is less than or equal to %s"" % self.max_value)
        if self.min_value is not None and value < self.min_value:
            raise ValidationError(""Ensure that value is greater than or equal to %s"" % self.min_value)
        if self.max_digits is not None and len(digits) > self.max_digits:
            raise ValidationError(""Ensure that the number of digits is less than or equal to %s"" % self.max_digits)
        if self.decimal_places is not None and len(decimals) > self.decimal_places:
            raise ValidationError(""Ensure that the number of decimal places is less than or equal to %s"" % self.decimal_places)
        return value"	enhancement	closed	Forms	dev	normal	duplicate	newforms fields floatfield	jay.baird@… waylan@… adurdin@…	Design decision needed	1	0	0	0	0	0