Re: w3cdate in flavour head

Matej Cepl <[email protected]> Wed, 25 May 2005 13:18:14 -0400

Newsgroups	gmane.comp.web.pyblosxom.user
Message-ID	<[email protected]>

Steven Armstrong wrote:
> I've hacked my version of w3cdate for just that reason. See attachment.
> You can use $lastmodified_w3cdate in your head.atom flavour.

Do you have to use xml.utils.iso8601? I use pyblosxom on a server, where I
cannot influence that easily what is installed, and they do not have
python-xml package installed there.

What do you think about the attached hack?

matej

-- 
Matej Cepl, http://www.ceplovi.cz/matej
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when the money is left in the hands of TAXPAYERS, God only knows
what they do with it. Bake it into pies, probably. Anything to
avoid creating jobs.
    -- Dave Barry

w3cdate.py (text/plain, 2.9 KB)

"""
Add a 'w3cdate' key to every entry -- this contains the date in ISO8601 format

WARNING: you must have PyXML installed as part of your python installation 
in order for this plugin to work

Place this plugin early in your load_plugins list, so that the w3cdate will
be available to subsequent plugins
"""
__author__ = "Ted Leung <[email protected]>"
__version__ = "$Id:"
__copyright__ = "Copyright (c) 2003 Ted Leung"
__license__ = "Python"

import time
import rfc822
from Pyblosxom import tools

def isodate(t):
    """Format a time in ISO-8601 format.

    If `timezone' is specified, the time will be specified for that timezone,
    otherwise for UTC.

    Some effort is made to avoid adding text for the 'seconds' field, but
    seconds are supported to the hundredths.
    """
    timezone = int(time.timezone)
    if timezone:
        sign = (timezone < 0) and "+" or "-"
        timezone = abs(timezone)
        hours = timezone / (60 * 60)
        minutes = (timezone % (60 * 60)) / 60
        tzspecifier = "%c%02d:%02d" % (sign, hours, minutes)
    else:
        tzspecifier = "Z"
    psecs = t - int(t)
    t = time.gmtime(int(t) - timezone)
    year, month, day, hours, minutes, seconds = t[:6]
    if seconds or psecs:
        if psecs:
            psecs = int(round(psecs * 100))
            f = "%4d-%02d-%02dT%02d:%02d:%02d.%02d%s"
            v = (year, month, day, hours, minutes, seconds, psecs, tzspecifier)
        else:
            f = "%4d-%02d-%02dT%02d:%02d:%02d%s"
            v = (year, month, day, hours, minutes, seconds, tzspecifier)
    else:
        f = "%4d-%02d-%02dT%02d:%02d%s"
        v = (year, month, day, hours, minutes, tzspecifier)
    return f % v


def cb_prepare(args):
    request = args['request']
    data = request.getData()
    try:
        newest_entry = data.get("entry_list", [])[0]
        time_tuple = newest_entry['timetuple']

        if time_tuple: # /sar: in my setup this can be None
            tzoffset = time.timezone
            # if is_dst flag set, adjust for daylight savings time
            if time_tuple[8] == 1:
                tzoffset = time.altzone
            t = time.mktime(time_tuple)
            request.addData({
                'lastmodified_w3cdate': isodate(t),
                'lastmodified_rfc822date': rfc822.formatdate(t)
            })
    except:
        #tools.log_exception()
        pass

    return args


def cb_story(args):
    entry = args['entry']
    time_tuple = entry['timetuple']

    if time_tuple: # /sa: in my setup this can be None
        tzoffset = time.timezone
        # if is_dst flag set, adjust for daylight savings time
        if time_tuple[8] == 1:
            tzoffset = time.altzone
        t = time.mktime(time_tuple)
        entry['w3cdate'] = isodate(t)
        # rfc822 date for rss feed
        entry['rfc822date'] = rfc822.formatdate(t)

    return args

if __name__ == '__main__':
    print isodate(time.mktime(time.localtime()))