NAME

         Wiki::Toolkit::Feed::Atom - A Wiki::Toolkit plugin to output RecentChanges Atom.

DESCRIPTION

       This is an alternative access to the recent changes of a Wiki::Toolkit wiki. It outputs
       the Atom Syndication Format as described at
       <http://www.atomenabled.org/developers/syndication/>.

       This module is a straight port of Wiki::Toolkit::Feed::RSS.

SYNOPSIS

         use Wiki::Toolkit;
         use Wiki::Toolkit::Feed::Atom;

         my $wiki = Wiki::Toolkit->new( ... );  # See perldoc Wiki::Toolkit

         # Set up the RSS feeder with the mandatory arguments - see
         # C<new()> below for more, optional, arguments.
         my $atom = Wiki::Toolkit::Feed::Atom->new(
           wiki                => $wiki,
           site_name           => 'My Wiki',
           site_url            => 'http://example.com/',
           make_node_url       => sub
                                  {
                                    my ($node_name, $version) = @_;
                                    return 'http://example.com/?id=' . uri_escape($node_name) . ';version=' . uri_escape($version);
                                  },
           html_equiv_link => 'http://example.com/?RecentChanges',
           atom_link => 'http://example.com/?action=rc;format=atom',
         );

         print "Content-type: application/atom+xml\n\n";
         print $atom->recent_changes;

METHODS

   "new()"
         my $atom = Wiki::Toolkit::Feed::Atom->new(
           # Mandatory arguments:
           wiki                 => $wiki,
           site_name            => 'My Wiki',
           site_url             => 'http://example.com/',
           make_node_url        => sub
                                   {
                                     my ($node_name, $version) = @_;
                                     return 'http://example.com/?id=' . uri_escape($node_name) . ';version=' . uri_escape($version);
                                   },
           html_equiv_link  => 'http://example.com/?RecentChanges',,
           atom_link => 'http://example.com/?action=rc;format=atom',

           # Optional arguments:
           site_description     => 'My wiki about my stuff',
           software_name        => $your_software_name,     # e.g. "Wiki::Toolkit"
           software_version     => $your_software_version,  # e.g. "0.73"
           software_homepage    => $your_software_homepage, # e.g. "http://search.cpan.org/dist/CGI-Wiki/"
           encoding             => 'UTF-8'
         );

       "wiki" must be a Wiki::Toolkit object. "make_node_url", if supplied, must be a coderef.

       The mandatory arguments are:

       •   wiki

       •   site_name

       •   site_url

       •   make_node_url

       •   html_equiv_link or recent_changes_link

       •   atom_link

       The three optional arguments

       •   software_name

       •   software_version

       •   software_homepage

       are used to generate the "generator" part of the feed.

       The optional argument

       •   encoding

       will be used to specify the character encoding in the feed. If not set, will default to
       the wiki store's encoding.

   "recent_changes()"
         $wiki->write_node(
                            'About This Wiki',
                            'blah blah blah',
                                $checksum,
                                {
                                  comment  => 'Stub page, please update!',
                                  username => 'Fred',
                                }
         );

         print "Content-type: application/atom+xml\n\n";
         print $atom->recent_changes;

         # Or get something other than the default of the latest 15 changes.
         print $atom->recent_changes( items => 50 );
         print $atom->recent_changes( days => 7 );

         # Or ignore minor edits.
         print $atom->recent_changes( ignore_minor_edits => 1 );

         # Personalise your feed further - consider only changes
         # made by Fred to pages about bookshops.
         print $atom->recent_changes(
                    filter_on_metadata => {
                                username => 'Fred',
                                category => 'Bookshops',
                              },
                     );

       If using "filter_on_metadata", note that only changes satisfying all criteria will be
       returned.

       Note: Many of the fields emitted by the Atom generator are taken from the node metadata.
       The form of this metadata is not mandated by Wiki::Toolkit. Your wiki application should
       make sure to store some or all of the following metadata when calling "write_node":

       comment - a brief comment summarising the edit that has just been made; will be used in
       the summary for this item.  Defaults to the empty string.
       username - an identifier for the person who made the edit; will be used as the Dublin Core
       contributor for this item, and also in the RDF description.  Defaults to 'No description
       given for change'.
       host - the hostname or IP address of the computer used to make the edit; if no username is
       supplied then this will be used as the author for this item.  Defaults to 'Anonymous'.

   "generate_node_list_feed"
       Generate and return an Atom feed for a list of nodes

   "generate_node_name_distance_feed"
       Generate a very cut down atom feed, based just on the nodes, their locations (if given),
       and their distance from a reference location (if given).

       Typically used on search feeds.

   "feed_timestamp()"
         print $atom->feed_timestamp();

       Returns the timestamp of the feed in POSIX::strftime style ("Tue, 29 Feb 2000 12:34:56
       GMT"), which is equivalent to the timestamp of the most recent item in the feed. Takes the
       same arguments as recent_changes(). You will most likely need this to print a Last-
       Modified HTTP header so user-agents can determine whether they need to reload the feed or
       not.

   "parse_feed_timestamp"
       Take a feed_timestamp and return a Time::Piece object.

SEE ALSO

       •   Wiki::Toolkit

       •   <http://www.atomenabled.org/developers/syndication/>

MAINTAINER

       The Wiki::Toolkit team, http://www.wiki-toolkit.org/.

COPYRIGHT AND LICENSE

       Copyright 2006-2009 Earle Martin and the Wiki::Toolkit team.  Copyright 2012 the
       Wiki::Toolkit team.

       This module is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

THANKS

       Kake Pugh for originally writing Wiki::Toolkit::Feed::RSS and indeed Wiki::Toolkit itself.