validators.py 文件源码

def _validate_mindate(self, min_date, field, value):
        """ {'type': ['date', 'datetime']} """

        # Remarks
        # -------
        # the yaml-reader prepares a datetime.date objects when possible,
        # the dwca-reader is not doing this, so compatibility need to be better
        # ensured

        if self._dateisrange(value):
            [self._validate_mindate(min_date, field, valdate) for valdate in
             value.split("/")]
        else:
            # convert schema info to datetime to enable comparison
            if isinstance(min_date, date):
                min_date = datetime.combine(min_date, datetime.min.time())

            # try to parse the datetime-format
            event_date = self._parse_date(field, value)
            if event_date:
                if event_date < min_date:
                    self._error(field, "date is before min limit " +
                                min_date.date().isoformat())