class IntegerField(Field):
"""
A text field, except all input is coerced to an integer. Erroneous input
is ignored and will not be accepted as a value.
"""
widget = widgets.NumberInput()
def __init__(self, label=None, validators=None, **kwargs):
super(IntegerField, self).__init__(label, validators, **kwargs)
def _value(self):
if self.raw_data:
return self.raw_data[0]
elif self.data is not None:
return text_type(self.data)
else:
return ""
def process_formdata(self, valuelist):
if valuelist:
try:
self.data = int(valuelist[0])
except ValueError:
self.data = None
raise ValueError(self.gettext("Not a valid integer value"))
class IntegerField(Field):
"""
A text field, except all input is coerced to an integer. Erroneous input
is ignored and will not be accepted as a value.
"""
widget = widgets.NumberInput()
def __init__(self, label=None, validators=None, **kwargs):
super().__init__(label, validators, **kwargs)
def _value(self):
if self.raw_data:
return self.raw_data[0]
if self.data is not None:
return str(self.data)
return ""
def process_data(self, value):
if value is None or value is unset_value:
self.data = None
return
try:
self.data = int(value)
except (ValueError, TypeError) as exc:
self.data = None
raise ValueError(
self.gettext("Not a valid integer value.")) from exc
def process_formdata(self, valuelist):
if not valuelist:
return
try:
self.data = int(valuelist[0])
except ValueError as exc:
self.data = None
raise ValueError(
self.gettext("Not a valid integer value.")) from exc
class DecimalField(LocaleAwareNumberField):
"""
A text field which displays and coerces data of the `decimal.Decimal` type.
:param places:
How many decimal places to quantize the value to for display on form.
If None, does not quantize value.
:param rounding:
How to round the value during quantize, for example
`decimal.ROUND_UP`. If unset, uses the rounding value from the
current thread's context.
:param use_locale:
If True, use locale-based number formatting. Locale-based number
formatting requires the 'babel' package.
:param number_format:
Optional number format for locale. If omitted, use the default decimal
format for the locale.
"""
widget = widgets.NumberInput(step="any")
def __init__(self,
label=None,
validators=None,
places=unset_value,
rounding=None,
**kwargs):
super().__init__(label, validators, **kwargs)
if self.use_locale and (places is not unset_value
or rounding is not None):
raise TypeError(
"When using locale-aware numbers, 'places' and 'rounding' are ignored."
)
if places is unset_value:
places = 2
self.places = places
self.rounding = rounding
def _value(self):
if self.raw_data:
return self.raw_data[0]
elif self.data is not None:
if self.use_locale:
return str(self._format_decimal(self.data))
elif self.places is not None:
if hasattr(self.data, "quantize"):
exp = decimal.Decimal(".1")**self.places
if self.rounding is None:
quantized = self.data.quantize(exp)
else:
quantized = self.data.quantize(exp,
rounding=self.rounding)
return str(quantized)
else:
# If for some reason, data is a float or int, then format
# as we would for floats using string formatting.
format = "%%0.%df" % self.places
return format % self.data
else:
return str(self.data)
else:
return ""
def process_formdata(self, valuelist):
if valuelist:
try:
if self.use_locale:
self.data = self._parse_decimal(valuelist[0])
else:
self.data = decimal.Decimal(valuelist[0])
except (decimal.InvalidOperation, ValueError):
self.data = None
raise ValueError(self.gettext("Not a valid decimal value"))
