def datetimeformat()

in kitsune/sumo/templatetags/jinja_helpers.py [0:0]

• 53 lines of code
• 22 McCabe index (conditional complexity)

def datetimeformat(context, value, format="shortdatetime", use_naturaltime=False):
    """
    Returns a formatted date/time using Babel's locale settings. Uses the
    timezone from settings.py, if the user has not been authenticated.
    """
    if not isinstance(value, datetime.datetime):
        # Expecting date value
        raise ValueError("Unexpected value {value} passed to datetimeformat".format(value=value))

    request = context.get("request")

    default_tzinfo = convert_tzinfo = ZoneInfo(settings.TIME_ZONE)
    if is_naive(value):
        # Since Python 3.9, due to the introduction of the new "fold" parameter, this is the
        # recommended way to convert a datetime instance from "naive" to "aware".
        new_value = value.replace(tzinfo=default_tzinfo)
    else:
        new_value = value

    if hasattr(request, "session"):
        if "timezone" not in request.session:
            if hasattr(request, "user") and request.user.is_authenticated:
                try:
                    convert_tzinfo = (
                        Profile.objects.get(user=request.user).timezone or default_tzinfo
                    )
                except (Profile.DoesNotExist, AttributeError):
                    pass
            request.session["timezone"] = convert_tzinfo
        else:
            convert_tzinfo = request.session["timezone"] or default_tzinfo

    convert_value = new_value.astimezone(convert_tzinfo)
    locale = _babel_locale(_contextual_locale(context))

    if use_naturaltime and (django_now().astimezone(convert_tzinfo) - convert_value).days < 30:
        return naturaltime(convert_value)

    if format == "shortdatetime" or format == "shortdate":
        # Check if the date is today
        today = datetime.datetime.now(tz=convert_tzinfo).toordinal()
        kwargs = {"format": "short", "tzinfo": convert_tzinfo, "locale": locale}
        if convert_value.toordinal() == today:
            formatted = _lazy("Today at %s") % format_time(convert_value, **kwargs)
        else:
            if format == "shortdatetime":
                formatted = format_datetime(convert_value, **kwargs)
            else:
                del kwargs["tzinfo"]
                formatted = format_date(convert_value, **kwargs)
    elif format == "longdatetime":
        formatted = format_datetime(
            convert_value, format="long", tzinfo=convert_tzinfo, locale=locale
        )
    elif format == "date":
        formatted = format_date(convert_value, locale=locale)
    elif format == "time":
        formatted = format_time(convert_value, tzinfo=convert_tzinfo, locale=locale)
    elif format == "datetime":
        formatted = format_datetime(convert_value, tzinfo=convert_tzinfo, locale=locale)
    elif format == "year":
        formatted = format_datetime(
            convert_value, format="yyyy", tzinfo=convert_tzinfo, locale=locale
        )
    else:
        # Unknown format
        raise DateTimeFormatError

    return Markup('<time datetime="%s">%s</time>' % (convert_value.isoformat(), formatted))