Template:Noselfcat/doc

This is a documentation subpage for Template:Noselfcat.
It contains usage information, categories and other content that is not part of the original template page.
To view the template page itself, see Template:Noselfcat.

Description

“ Category chains formed by parent–child relationships should never form closed loops; that is, no category should be contained as a subcategory of one of its own subcategories. ”

—wikipedia:WP:SUBCAT

This template is intended for use with navigation templates. When a category is provided, it is equivalent to the following code:

{{#ifeq:{{FULLPAGENAME}}|Category:category|<!--skip-->|[[Category:category]]}}

Usage

<includeonly>{{Noselfcat|category}}</includeonly>

Example

Avoid a closed loop on Category:Cabbage:

<includeonly>{{Noselfcat|Cabbage}}</includeonly>

When the page is saved the code becomes:

<includeonly>{{#ifeq:{{FULLPAGENAME}}|Category:Cabbage|<!--skip-->|[[Category:Cabbage]]}}</includeonly>

Table

Code on Template:Cabbage	Template:Cabbage on page	Result	Explanation
<includeonly>{{Noselfcat|Cabbage}}</includeonly>	Category:Vegetables	[[Category:Cabbage]]	​
<includeonly>{{Noselfcat|Cabbage}}</includeonly>	Cabbage	[[Category:Cabbage]]	​
<includeonly>{{Noselfcat|Cabbage}}</includeonly>	Category:Cabbage		Skipped
<includeonly>{{Noselfcat}}</includeonly>	Any page		No category provided