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
26215	"if dumpdata FloatRangeField and IntegerRangeField values = ""None"" and post loaddata is ValidationError"	Алексей	nobody	"1. FloatRangeField db data == None
2. ./manage dumpdata
3. ./manage loaddata

Conversion problem. accept string u'None' to float type

Track:
  File ""/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py"", line 1803, in to_python
    params={'value': value},

Decision:

{{{

    def to_python(self, value):
        if value == u'None':
            return None
        elif value is None:
            return value
        try:
            return float(value)
        except (TypeError, ValueError):
            raise exceptions.ValidationError(
                self.error_messages['invalid'],
                code='invalid',
                params={'value': value},
            )
}}}

And IntegerField too

Source data dump example:

{{{
<field name=""rate"" type=""FloatRangeField"">{""upper"": ""None"", ""lower"": ""1.45"", ""bounds"": ""[)""}</field>
}}}
"	Bug	new	Database layer (models, ORM)	1.9	Normal				Unreviewed	0	0	0	0	0	0