def validate(self, value, model_instance):
value = super(DateTimeProperty, self).validate(value, model_instance)
if isinstance(value, str) or isinstance(value, unicode):
if not strutil.is_datetime(value, fmt=self.fmt):
raise TypeDatetimeError(self.get_label_i18n_key())
else:
value = strutil.to_datetime(value, fmt=self.fmt)
if value and not isinstance(value, self.data_type):
raise CoreError('Property %s must be a %s' %
(self.name, self.data_type.__name__))
return value
def _get_datetime_parameter(self, name, fmt, default=None):
value = self._get_str_parameter(name)
return strutil.to_datetime(value, fmt=fmt, default=default)
def normalize_value(self, value):
if isinstance(value, datetime.datetime):
return value
else:
return strutil.to_datetime(value, fmt=self.fmt)