WebRssBase < System < BACCHUS Wiki

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---+ RSS News Feeds

---++ Find out What's New

There are several ways to find out what's new in each web:
   1. Visit WebChanges to see recent changes
   1. Subscribe in WebNotify to get notified of recent changes by e-mail
   1. Use a news reader such as Foswiki:Extensions/HeadlinesPlugin to display the recent changes
      * The source can be an RSS 1.0 feed (WebRss) or ATOM 1.0 feed (WebAtom)

---++ RSS Feed Usage

   * The URL for an RSS feed is =%SCRIPTURL{"view"}%/&lt;web&gt;/WebRss=
   * For this <nop>%WEB% web it is %SCRIPTURL{"view"}%/%WEB%/WebRss
   * You can also create a custom feed based on a search. Add a =search=value= parameter to the URL, e.g. %SCRIPTURL{"view"}%/%WEB%/WebRss?search=plugin is a what's new feed about Plugins.

---++ RSS Feed Internals

Each web has a WebRss topic which includes part of this <nop>%TOPIC% topic. This topic is the base for the RSS feed and generates an RSS 1.0 feed.

The WebRss topic in each web contains the following text:

-----
<pre>
&lt;channel rdf:about="%<nop>SCRIPTURL{"view"}%/%<nop>BASEWEB%">
  &lt;title>%<nop>WIKITOOLNAME%'s &lt;nop>%<nop>BASEWEB% web&lt;/title>
  &lt;link>%<nop>SCRIPTURL{"view"}%/%<nop>BASEWEB%&lt;/link>
  &lt;description>&lt;literal>%<nop>MAKETEXT{"The [_1] web of [_2]." args="<nop>%<nop>WEB%,<nop>%<nop>WIKITOOLNAME%"}% <nop>%<nop>WEBSUMMARY%&lt;/literal>&lt;/description>
%<nop>INCLUDE{"%SYSTEMWEB%.WebRssBase"}% &lt;!--
   * Set <nop>SKIN = rss
   * Set <nop>COVER = rss
-->
</pre>
-----
*Note:* The description is expanded from the %<nop>WEB%, %<nop>WIKITOOLNAME% and %<nop>WEBSUMMARY% macros.  These *must* expand to plain text with no links or html markup. &lt;literal> is used to avoid links if the web name or any of the macros expand to include WikiWords or other markup.

The part below is included by each <nop>WebRss topic:


-----
<verbatim>
%STARTINCLUDE%<image rdf:resource="%WIKILOGOIMG%" />
  <dc:language>en-us</dc:language>
  <dc:rights>%WEBRSSCOPYRIGHT%</dc:rights>
  <dc:publisher>%WIKIWEBMASTERNAME% [%WIKIWEBMASTER%]</dc:publisher>
  <dc:creator>The contributing authors of %WIKITOOLNAME%</dc:creator>
  <dc:source>%WIKITOOLNAME%</dc:source>
  <items>
    <rdf:Seq>
%SEARCH{"%URLPARAM{"search" encode="quote" default=".*" }%" web="%URLPARAM{"web" encode="quote" default="%BASEWEB%" }%" excludetopic="%URLPARAM{"excludetopic" encode="quote" default="%STATISTICSTOPIC%" }%" type="%URLPARAM{"type" encode="quote" default="regex" }%" nosearch="on" order="modified" reverse="on" nototal="on" limit="%URLPARAM{"limit" encode="quote" default="16" }%" scope="%URLPARAM{"scope" encode="quote" default="text" }%" casesensitive="%URLPARAM{"casesensitive" encode="quote" default="on" }%" date="%URLPARAM{"date" encode="quote" default="" }%" format="      <rdf:li rdf:resource=\"%SCRIPTURL{"view"}%/$web/$topic\" />"}%
    </rdf:Seq>
  </items>
</channel>
<image rdf:about="%WIKILOGOIMG%">
  <title>%WIKILOGOALT%.%BASEWEB%</title>
  <link>%SCRIPTURL{"view"}%/%BASEWEB%</link>
  <url>%WIKILOGOIMG%</url>
</image>
%SEARCH{"%URLPARAM{"search" encode="quote" default=".*" }%" web="%URLPARAM{"web" encode="quote" default="%BASEWEB%" }%" excludetopic="%URLPARAM{"excludetopic" encode="quote" default="%STATISTICSTOPIC%" }%" type="%URLPARAM{"type" encode="quote" default="regex" }%" nosearch="on" order="modified" reverse="on" nototal="on" limit="%URLPARAM{"limit" encode="quote" default="16" }%" scope="%URLPARAM{"scope" encode="quote" default="text" }%" casesensitive="%URLPARAM{"casesensitive" encode="quote" default="on" }%" date="%URLPARAM{"date" encode="quote" default="" }%" format="<item rdf:about=\"%SCRIPTURL{"view"}%/$web/$topic\">$n  <title>$topic</title>$n  <link>%SCRIPTURL{"view"}%/$web/$topic</link>$n  <description>$summary (last changed by <nop>$wikiname)</description>$n  <dc:date>$isodate</dc:date>$n  <dc:contributor>$n    <rdf:Description link=\"%SCRIPTURL{"view"}%?topic=$wikiusername\">$n      <rdf:value>$username</rdf:value>$n    </rdf:Description>$n  </dc:contributor>$n</item>"}%
%STOPINCLUDE%
</verbatim>
-----

*See also*: WebAtomBase
Topic revision: r1 - 13 Aug 2010, ProjectContributor
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