Help:Categories/sco

Categeries, ae saffware featur o MediaWiki, provide autæmateec indexes that's uissfu aes buirds o contents.

Ye can categerise pages n files bi eikin yin or mair Categery tags til the content tex. Thir tags cræft airtins at the bottom o the page that tak ye til the leet o aw pages in that categerie, this maks it easie tae brouse sib airticles.

Ootline
Ilka page in the Category(Catergerie) namespace represents ae sae-cried categerie, ae groopin o sib pages, n contains aen index fer the pages o its categerie. Fer example, this page belangs til "Category:Help". Gif ye apen the "Category:Help" page, ye'll see aen airtin til this page thaur.

Whan ae page belangs til yin or mair categeries, thir categeries kith at the bottom o the page (or in the upper-richt corner, dependin oan the skin bein uised).

The categerie pages thairsels contain 2 pairts:


 * at thair beginnin, aen optional pairt micht haud tex that can be eeditit, like onie ither page,
 * at thair end, aen ever presant, autæmateeclie generated, alphabeteecal leet o aw pages in that categerie, in the form o airtins. (In fact, in ASCII order. See the Help:Byordinair page).

Tae assign ae categerie til ae page, simplie eik the airtin " Category:Categerie name" til the page's wikitex. The uissual steid tae eik it is at the bottom o the page.

Tae airt ae categerie page wiin ae page aes ae normal wiki airtin (wioot eikin the page til the categerie), prefix the link name with ae colon. Fer example: :Category:Not in this category

New categeries can be cræftit afore assignin onie page til it, in the same waa aes onie ither raigulair page.

Indiveedual wikis micht hae thair ain tap-level categeries, like Category:Contents in Wikipædia.

Fer ae compleate leet o aw categeries that hae at least the ae page, see Special:Categeries.

Fer ae compleate leet o aw cræftit/eeditit categeries, incluidin the yins that dinna hae onie pages, see Special:Allpages/Category: (mynd the colon at the end).

Eikin ae page til ae categerie
Tae eik ae page or uplaidit file til ae categerie, simplie eedit the page n eik the follaein tex (whaur Name is the name o the categerie that ye want tae eik it til).



Onie nummer o     tags can be eikit til the page n the page will be leetit in aw o thaim. tags, alang wi interwiki leid airtins steidit in the sidebaur, ar uissuallie eikit at the ver bottom o the page fer the conveeeneeance o ither eediters.

On a categorized page, categories are displayed in the Categories: box strictly in the order they appear in the wikitext.

If $wgUseCategoryBrowser is set to true, under the first list each category is listed again, breadcrumb-style, with all its parent categories, sorted alphabetically. (At least in MediaWiki 1.18.2) if a category is a subcategory of more than one parent, both hierarchies will be listed, but the tagged category will be stripped off all but one of these. This creates the potential for what appear to be duplicate entries if a category with multiple parents and one of its parents are both tagged on a page. For example suppose Maryanne is a subcategory of both Mary and Anne. If a page tags categories Maryanne and Anne then the Category breadcrumbs will show

Anne Anne Mary -> Maryanne

"Anne" appears to be duplicated, but what is meant is

Anne Anne -> Maryanne Mary -> Maryanne

This is probably a bug, and has been reported in Bug 33614.

Sort key
By default, a page is sorted within a category under the first letter of its name — without the namespace. Also, MediaWiki groups accented characters separately from their unaccented version, so pages starting by À, Á, Ä, will be listed under separate headings, instead of under heading A. (If you have shell access, these defaults can be changed using $wgCategoryCollation.)

A sort key specifies under which letter heading, and where in the category list, the page will appear. You can add a sort key by placing it inside the tag after a pipe character. For example, the tag below will add the page under heading "S".

Sort

Sort keys are case-sensitive, and spaces and other characters are also valid. The order of the sections within a category follows the Unicode sort order. The sort key does not change the page title displayed in the category.

See Help:Sorting for further information on category sorting.

Creating a category page
Categories exist even if their page has not been created, but these categories are isolated from others and serve little purpose for organization or navigation.

A category is created by creating a page in the Category: namespace. A category page can be created the same way as other wiki pages (see Help:Starting a new page); just add " " before the page title.

To avoid extra work, try searching within your wiki before creating a new category. The list of all categories can be found in "" in the "" box of the sidebar.

Unlike other wiki pages, it is not possible to rename (move) a category. It is necessary to create a new category and change the     tag on every page. The new category will not have the older category's page history, which is undesirable if there are many revisions.

Managing the category hierarchy
Categories may belong to other categories in a hierarchy. Since category pages are much like any other page, a     tag may be added to the bottom of a category page.

It is a good idea to organize all categories into a hierarchy with a single top level category. The category structure can take the form of a tree with separate branches, but more often will have a graph structure. Generally, there should be a contiguous chain of parent-child links between each category and the top level category.

Hidden categories
The categories that a page is in are normally listed at the bottom of the page. In Mediawiki 1.13+, a category can be hidden from this list by adding the magic word " " to the category page. Hidden categories are not hidden from category pages.

Users can choose to see hidden categories in a separate "" list, by checking "" in the "" section of Special:Preferences.

Hidden categories are automatically added to Category:. This category is specified in the system message MediaWiki:Hidden-category-category.

See also: hidden categories

Linking to a category
To create a link to a category, use a leading colon before the category name (without this colon, the current page would be added to the category):


 * &rarr;    :Help

To change the link text, write the text inside the link tag after a pipe:


 * &rarr; Help category

Redirect pages that redirect to categories must also use the colon, otherwise they will be added to the category instead of redirecting.

Redirecting a category
Like normal wiki pages, category pages can be redirected to other normal or category pages. However, this is not recommended, as pages categorized in redirected categories do not get categorized in the target category (bugzilla:3311). Some Wikimedia sites use a "category redirect" template to mark redirected categories, allowing manual or automated cleanup of pages categorized there.

Tracking categories
Certain syntax issues, such as a broken image link, or too many expensive parser functions, can cause a page to be added to a tracking category. See Help:Tracking categories for details.