Template:Resolve category redirect/doc

This is a documentation subpage for Template:Resolve category redirect.
It may contain usage information, categories and other content that is not part of the original template page.

This template is used in MediaWiki:Babel-category-override, and on approximately 902,000 pages, or roughly 5% of all pages.
Changes to it can cause immediate changes to the Wikipedia user interface.
To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Please discuss changes on the talk page before implementing them.

This template uses Lua:

Resolves a soft category redirect.

It takes one parameter, which is the name of a category. It returns that category name, unless the category exists and is a {{category redirect}} ... when it returns the name of the redirect target.

Usage

{{Resolve category redirect|categoryname}}

Examples

Category exists and is not redirected: Category:1970s

<syntaxhighlight lang="wikitext" inline>1970s</syntaxhighlight> → 1970s
<syntaxhighlight lang="wikitext" inline>1970s</syntaxhighlight> → 1970s

Category exists and is a soft redirect: Category:Mosques completed in the 19th century

<syntaxhighlight lang="wikitext" inline>Mosques completed in the 19th century</syntaxhighlight> → Mosques completed in the 19th century
<syntaxhighlight lang="wikitext" inline>Mosques completed in the 19th century</syntaxhighlight> → Mosques completed in the 19th century

Category exists and is a soft redirect: Category:Organisations

<syntaxhighlight lang="wikitext" inline>Organisations</syntaxhighlight> → Organisations
<syntaxhighlight lang="wikitext" inline>Organisations</syntaxhighlight> → Organisations

Non-existent category: Category:Colourless green things

<syntaxhighlight lang="wikitext" inline>Colourless green things</syntaxhighlight> → Colourless green things
<syntaxhighlight lang="wikitext" inline>Colourless green things</syntaxhighlight> → Colourless green things

{{Title year}} in category: Category:1781 in Mexico

<syntaxhighlight lang="wikitext" inline>1781 in New Spain</syntaxhighlight> → 1781 in New Spain
<syntaxhighlight lang="wikitext" inline>1781 in New Spain</syntaxhighlight> → 1781 in New Spain

Templates

{{Title year}} and other templates without parameters are now allowed in the {{Category redirect}} target name, and are evaluated accordingly. Multiple templates are not evaluated, but such functionality can be requested with an appropriate working example.

The character ! is also now allowed (see testcases).

Avoiding deletion of the redirected page

It is helpful to also add {{R from category navigation}} or {{R from template-generated category}} (as appropriate) to indicate that the redirect is required for navigation between category pages. See those template page for full syntax. This also hides a speedy deletion button that is otherwise displayed to administrators.

Tracking categories

Category:Wikipedia soft redirected categories which are not resolved correctly (0)