mediawiki-extensions-Catego.../README
2007-09-13 10:23:45 +00:00

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README for the CategoryTree extension
Copyright © 2006-2007 Daniel Kinzler
Licenses: GNU General Public Licence (GPL)
GNU Free Documentation License (GFDL)
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The CategoryTree extension provides a dynamic view of the wiki's category
structure as a tree. It uses AJAX to load parts of the tree on demand.
<http://meta.wikimedia.org/wiki/CategoryTree_extension>
The CategoryTree extension was originally written by Daniel Kinzler in
2006 and is released under the GNU General Public Licence (GPL). The
internationalization files contain contributions by several people;
they are mentioned in each file individually. Also thanks to Tim Starling
for his contributions.
INSTALLING
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Copy the CategoryTree directory into the extensions folder of your
MediaWiki installation. Then add the following lines to your
LocalSettings.php file (near the end):
$wgUseAjax = true;
require_once( 'extensions/CategoryTree/CategoryTree.php' );
Note that $wgUseAjax = true; will enable the ajax framework in MediaWiki,
which is required by the CategoryTree extension. AJAX is a term for using
JavaScript to load parts of a page on demand. It is supported by all
recent graphic web browsers. For more information about AJAX see
<http://en.wikipedia.org/wiki/Ajax_%28programming%29>.
USAGE
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CategoryTree can be used in three ways: directly on the category pages,
as a "custom tag" to show a category structure inline on a wiki page,
and as a special page.
The CategoryTree extension replaces the subcategory section of category
pages with a dynamic tree view. If Javascript is disabled, this appears
as a plain list. The dynamic subcategory entries can be disabled using
the URL parameter "notree" - this is intended for bots that rely on
parsing the HTML of category pages.
The custom tag is called <categorytree>. For example, if you put
<categorytree mode="pages">Foo</categorytree> on a wiki page, it will show
the contents of category Foo as a dynamic tree on that page. The tag accepts
the following attributes, using a HTML-like syntax:
* hideroot - set this to "on" to hide the "root" node of the tree, i.e.
the mention of category Foo from the example.
* onlyroot - set this to "on" show only the "root" node of the tree initially
* mode - can be "categories", "pages" or "all". See the Modes section below.
The default for this attribute is controlled by
$wgCategoryTreeDefaultMode, and is initially set to CT_MODE_CATEGORIES,
the equivalent of setting the mode attribute to "categories".
* style - can be used to specify any CSS styles you would like for the
tree.
Alternatively to the <categorytree> tag, parser-function syntax can also be
used, e.g {{#categorytree:Foo|hideroot=yes}}. This syntax allows the use of
magic variables, templates and template parameters for the category name.
The special page is called Special:CategoryTree; there you can enter the
name of a category and then browse it's content. The CategoryTree
extension also adds a tab for this special page to every category page.
MODES
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The category tree can be shown in different modes, determining what types of
"leaves" the "tree" has:
* categories (constant CT_MODE_CATEGORIES): show subcategories only
* pages (constant CT_MODE_PAGES): show subcategories and pages, except images
* all (constant CT_MODE_ALL): show all pages, subcategories, images, etc
The CT_MODE_XXX constants can be used with configuration optiosn (see below).
OPTIONS
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There are some options you can specify in your LocalSettings.php file:
$wgCategoryTreeMaxChildren - maximum number of children shown in a tree
node. Default is 200
$wgCategoryTreeAllowTag - enable <categorytree> tag. Default is true.
$wgCategoryTreeDynamicTag - loads the first level of the tree in a
<categorytag> dynamically. This way, the cache
does not need to be disabled. Default is false
$wgCategoryTreeDisableCache - disabled the parser cache for pages with a
<categorytree> tag. Default is true.
$wgCategoryTreeHTTPCache - enable HTTP cache for anon users. Default is
false.
$wgCategoryTreeOmitNamespace - never show namespace prefix. Default is
false. Patch contributed by Manuel Schneider
<manuel.schneider@wikimedia.ch>, Bug 8011
$wgCategoryMaxDepth - maximum value for depth argument; can be an integer,
or an associative array, mapping CT_MODE_XXX constants
to the maximum depth for that mode.
Ignored if $wgCategoryTreeDynamicTag is true. Introduced
by Steve Sanbeg.
$wgCategoryTreeExtPath - the (URL-) path where the extension is installed,
relative to $wgScriptPath, with leading "/". Default is
"/extensions/CategoryTree".
$wgCategoryTreeDefaultMode - the default mode to use when no mode attribute
is specified in a <categorytree> tag. May be
CT_MODE_CATEGORIES (the default), CT_MODE_PAGES, or
CT_MODE_ALL.
$wgCategoryTreeCategoryPageMode - the mode to use when rendering trees on
category pages. May be CT_MODE_CATEGORIES (the default),
CT_MODE_PAGES, or CT_MODE_ALL.
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EOF