class DateTimeField(Field):
"""
A text field which stores a `datetime.datetime` matching a format.
"""
widget = widgets.DateTimeInput()
def __init__(self,
label=None,
validators=None,
format="%Y-%m-%d %H:%M:%S",
**kwargs):
super().__init__(label, validators, **kwargs)
self.format = format
self.strptime_format = clean_datetime_format_for_strptime(format)
def _value(self):
if self.raw_data:
return " ".join(self.raw_data)
return self.data and self.data.strftime(self.format) or ""
def process_formdata(self, valuelist):
if not valuelist:
return
date_str = " ".join(valuelist)
try:
self.data = datetime.datetime.strptime(date_str,
self.strptime_format)
except ValueError as exc:
self.data = None
raise ValueError(
self.gettext("Not a valid datetime value.")) from exc
class DateTimeField(Field):
"""
A text field which stores a :class:`datetime.datetime` matching one or
several formats. If ``format`` is a list, any input value matching any
format will be accepted, and the first format in the list will be used
to produce HTML values.
"""
widget = widgets.DateTimeInput()
def __init__(self,
label=None,
validators=None,
format="%Y-%m-%d %H:%M:%S",
**kwargs):
super().__init__(label, validators, **kwargs)
self.format = format if isinstance(format, list) else [format]
self.strptime_format = clean_datetime_format_for_strptime(self.format)
def _value(self):
if self.raw_data:
return " ".join(self.raw_data)
return self.data and self.data.strftime(self.format[0]) or ""
def process_formdata(self, valuelist):
if not valuelist:
return
date_str = " ".join(valuelist)
for format in self.strptime_format:
try:
self.data = datetime.datetime.strptime(date_str, format)
return
except ValueError:
self.data = None
raise ValueError(self.gettext("Not a valid datetime value."))