OpenGuides::Feed - generate data feeds for OpenGuides in various formats.


OpenGuides documentation  | view source Contained in the OpenGuides distribution.

Index


  • set_feed_name_and_url_params Overrides the default feed name and default feed http equivalent url. Useful on custom feeds, where the defaults are incorrect.
       $feed->set_feed_name_and_url("Search Results", "search=pub");
       $feed->build_mini_feed_for_nodes("rss", @search_results);
    
    
    make_feed

    Produce one of the standard feeds, in the requested format.

    my $feed_contents = feeds->make_feed( feed_type => 'rss', feed_listing => 'recent_changes' );

    Passes additional arguments through to the underlying Wiki::Toolkit::Feed

    build_feed_for_nodes

    For the given feed type, build a feed from the supplied list of nodes. Will figure out the feed timestamp from the newest node, and output a last modified header based on this.

    my @nodes = $wiki->fetch_me_nodes_I_like(); my $feed_contents = $feed->build_feed_for_nodes("rss", @nodes);

    build_mini_feed_for_nodes

    For the given feed type, build a mini feed (name and distance) from the supplied list of nodes. Will figure out the feed timestamp from the newest node, and output a last modified header based on this.

    my @nodes = $wiki->search_near_here(); my $feed_contents = $feed->build_mini_feed_for_nodes("rss", @nodes);

    render_feed_for_nodes

    Normally internal method to perform the appropriate building of a feed based on a list of nodes.

    default_content_type

    For the given feed type, return the default content type for that feed.

    my $content_type = $feed->default_content_type("rss");

    fetch_maker

    For the given feed type, identify and return the maker routine for feeds of that type.

    my $maker = $feed->fetch_maker("rss"); my $feed_contents = maker->node_all_versions(%options);

    Will always return something of type Wiki::Toolkit::Feed::Listing

  • NAME

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    OpenGuides::Feed - generate data feeds for OpenGuides in various formats.

    DESCRIPTION

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    Produces RSS 1.0 and Atom 1.0 feeds for OpenGuides. Distributed and installed as part of the OpenGuides project, not intended for independent installation. This documentation is probably only useful to OpenGuides developers.

    SYNOPSIS

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        use Wiki::Toolkit;
        use OpenGuides::Config;
        use OpenGuides::Feed;
    
        my $wiki = Wiki::Toolkit->new( ... );
        my $config = OpenGuides::Config->new( file => "wiki.conf" );
        my $feed = OpenGuides::Feed->new( wiki       => $wiki,
                                          config     => $config,
                                          og_version => '1.0', ); 
    
        # Ten most recent changes in RSS format.
        my %args = ( items     => 10,
                     feed_type => 'rss', 
                     also_return_timestamp => 1 );
        my ($feed_output,$feed_timestamp) = $feed->make_feed( %args );
    
        print "Content-Type: application/rdf+xml\n";
        print "Last-Modified: " . $feed_timestamp . "\n\n";
        print $feed_output;
    
    

    METHODS

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    new
        my $feed = OpenGuides::Feed->new( wiki       => $wiki,
                                          config     => $config,
                                          og_version => '1.0', ); 
    
    

    wiki must be a Wiki::Toolkit object and config must be an OpenGuides::Config object. Both of these arguments are mandatory. og_version is an optional argument specifying the version of OpenGuides for inclusion in the feed.

    rss_maker

    Returns a raw Wiki::Toolkit::Feed::RSS object created with the values you invoked this module with.

    atom_maker

    Returns a raw Wiki::Toolkit::Feed::Atom object created with the values you invoked this module with.

    make_feed
        # Ten most recent changes in RSS format.
        my %args = ( items     => 10,
                     feed_type => 'rss',
                     also_return_timestamp => 1 );
        my ($feed_output,$feed_timestamp) = $rdf_writer->make_feed( %args );
    
        print "Content-Type: application/rdf+xml\n";
        print "Last-Modified: " . $feed_timestamp . "\n\n";
        print $feed_output;
        print $rdf_writer->make_feed( %args );
    
    
    
    
        # All the changes made by bob in the past week, ignoring minor edits, in Atom.
        $args{days}               = 7;
        $args{ignore_minor_edits  = 1;
        $args{filter_on_metadata} => { username => "bob" };
        $args{also_return_timestamp} => 1;
    
        my ($feed_output,$feed_timestamp) = $rdf_writer->make_feed( %args );
        print "Content-Type: application/atom+xml\n";
        print "Last-Modified: " . $feed_timestamp . "\n\n";
        print $feed_output;
    
    
    feed_timestamp

    Instead of calling this, you should instead pass in the 'also_return_timestamp' option. You will then get back the feed timestamp, along with the feed output.

    This method will be removed in future, and currently will only return meaningful values if your arguments relate to recent changes.

        print "Last-Modified: " . $feed->feed_timestamp( %args ) . "\n\n";
    
    

    Returns the timestamp of something in POSIX::strftime style ("Tue, 29 Feb 2000 12:34:56 GMT"). Takes the same arguments as make_recentchanges_rss(). 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.

    SEE ALSO

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    * Wiki::Toolkit, Wiki::Toolkit::Feed::RSS and Wiki::Toolkit::Feed::Atom
    * http://openguides.org/

    AUTHOR

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    The OpenGuides Project (openguides-dev@lists.openguides.org)

    COPYRIGHT

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    CREDITS

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    Written by Earle Martin, based on the original OpenGuides::RDF by Kake Pugh.


    OpenGuides documentation  | view source Contained in the OpenGuides distribution.