widgets.py 文件源码

def format_value(self, value):
        """
        Return a dict containing the year, month, and day of the current value.
        Use dict instead of a datetime to allow invalid dates such as February
        31 to display correctly.
        """
        year, month, day = None, None, None
        if isinstance(value, (datetime.date, datetime.datetime)):
            year, month, day = value.year, value.month, value.day
        elif isinstance(value, six.string_types):
            if settings.USE_L10N:
                try:
                    input_format = get_format('DATE_INPUT_FORMATS')[0]
                    d = datetime.datetime.strptime(force_str(value), input_format)
                    year, month, day = d.year, d.month, d.day
                except ValueError:
                    pass
            match = self.date_re.match(value)
            if match:
                year, month, day = [int(val) for val in match.groups()]
        return {'year': year, 'month': month, 'day': day}