forms.py 文件源码

def __init__(self, *args, **kwargs):
        super(UserSettingsForm, self).__init__(*args, **kwargs)

        # Languages
        def get_language_display_name(code, desc):
            try:
                desc = translation.get_language_info(code)['name_local']
                desc = string.capwords(desc)
            except KeyError:
                # If a language is not defined in django.conf.locale.LANG_INFO
                # get_language_info raises KeyError
                pass
            return "%s (%s)" % (desc, code)
        languages = [(k, get_language_display_name(k, v))
                     for k, v in settings.LANGUAGES]
        self.fields['language'].choices = languages

        # Timezones
        timezones = []
        language = translation.get_language()
        current_locale = translation.to_locale(language)
        babel_locale = babel.Locale.parse(current_locale)
        for tz, offset in self._sorted_zones():
            try:
                utc_offset = _("UTC %(hour)s:%(min)s") % {"hour": offset[:3],
                                                          "min": offset[3:]}
            except Exception:
                utc_offset = ""

            if tz == "UTC":
                tz_name = _("UTC")
            elif tz == "GMT":
                tz_name = _("GMT")
            else:
                tz_label = babel.dates.get_timezone_location(
                    tz, locale=babel_locale)
                # Translators:  UTC offset and timezone label
                tz_name = _("%(offset)s: %(label)s") % {"offset": utc_offset,
                                                        "label": tz_label}
            timezones.append((tz, tz_name))

        self.fields['timezone'].choices = timezones

        # When we define a help_text using any variable together with
        # form field, traslation does not work well.
        # To avoid this, we define here. (#1563021)
        self.fields['pagesize'].help_text = (
            _("Number of items to show per page (applies to the pages "
              "that have API supported pagination, Max Value: %s)")
            % self.max_value)