More Details on Textpattern CMS Syndication Feeds

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In my previous article, I demonstrated how Textpattern CMS handles the generation of article links in both the <head> and <body> section of the page using the <txp:feed_link> tag. It’s possible to extend this functionality further with appropriate use of attributes within the same tag. As I write this, the current version of Textpattern recognizes the following attributes in the <txp:feed_link> tag:

  • category – restrict articles a specified category
  • flavor – output a link to the RSS or Atom version of the feed
  • format – output an anchor tag or link tag
  • limit – how many articles are in the feed
  • section – restrict articles to a specific section
  • title – the HTML title attribute

You may recognize some of them from the tag constructs I used in the last article, most should be new to you. Textpattern logic assumes that each of the above attributes has a default, and in the case of <txp:feed_link> all the attributes are optional. The defaults are:

  • category – current category
  • flavor – RSS
  • format – anchor
  • limit – depends upon administration preference setting.
  • section – current section.
  • title – depends on flavor, either RSS feed or Atom feed

This tag construct uses the defaults builds a link accordingly:

<txp:feed_link />

Overriding the defaults is easy enough, just tack on some attributes. For example, if you have a section where it’s important to have more articles syndicated (say, 50) than your other sections (which are set to 10), using this tag construct will give you what you want:

<txp:feed_link limit="50" />

Equally, if this section should be available as a link throughout the site, you can force the section name into the construct, like this:

<txp:feed_link limit="50" section="fruit" />

Perhaps you have two specific sections that you wish to merge into one feed:

<txp:feed_link limit="50" section="fruit,vegetable" />

Clever, huh? How about switching it to Atom instead of RSS? Easy:

<txp:feed_link flavor="atom" limit="50" section="fruit,vegetable" />

Any or all of the attributes can be used. Note that this tag construct is self-closing; there’s a trailing slash before the >. The <txp:feed_link> can also be used as a container tag and wrapped around an image, for example:

<txp:feed_link flavor="atom" limit="50" section="fruit,vegetable"><img src=atom.png /></txp:feed_link />

Or, you can get really neat with a tag inside a tag:

<txp:feed_link flavor="atom" limit="50" section="fruit,vegetable"><txp:image id="1" /></txp:feed_link />

…which turns the Textpattern image with ID reference number 1 into a hyperlink.

There’s a plenty more to learn about the <txp:feed_link> tag, take a look at the Textpattern documentation wiki for more examples and explanations. Next time, I’ll show you how to automatically post your Textpattern articles to Twitter with Twitterfeed.

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Author Spotlight

Pete Cooper

Pete Cooper

Pete Cooper has been using Textpattern since 2005. Textpattern is his preferred CMS weapon of choice. Its logical and flexible approach to content management makes Pete happy, as does its lightweight core and helpful user community. Pete's website - petecooper.org - runs on top of Textpattern and chronicles his day-to-day experiences from his home near the Atlantic in north Cornwall, United Kingdom.

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