Template:Nth-century fooers from Northern Ireland/doc

This is a documentation subpage for Template:Nth-century fooers from Northern Ireland.
It may contain usage information, categories and other content that is not part of the original template page.

A category header template to create by-century categories for people by occupation from Northern Ireland, e.g. Category:20th-century writers from Northern Ireland.

This template is the only thing required to create such categories.

Usage

The template parses the category title to extract both the century and the occupation. So in simple cases, no parameters are required.

Example 1: On Category:20th-century writers from Northern Ireland; {{Nth-century fooers from Northern Ireland}}

Usage with a parent occupation

Many occupations are subsets of another occupation, e.g. poets are a subset of writers, so use the parameter |Supercategory=

Example 2: On Category:20th-century poets from Northern Ireland; {{Nth-century fooers from Northern Ireland |Supercategory=Writers}}

Example 3: On Category:20th-century physicists from Northern Ireland; {{Nth-century fooers from Northern Ireland |Supercategory=Scientists}}

Usage with two parent occupations

In some rarer cases, an occupation is a subset of two other occupations, e.g. biochemists is a subset of both biologists and chemists

Example 4: On Category:20th-century biochemists from Northern Ireland; {{Nth-century fooers from Northern Ireland |Supercategory=Biologists |Supercategory2=Chemists}}

Occupations where the first letter remains capitalised

Example 5: On Category:20th-century DJs from Northern Ireland; {{Fooers from Northern Ireland |Professionkeepcaps = yes | Supercategory =Musicians }}
(The Professionkeepcaps= yes is added because "DJs" needs to retain it capitalisation in all contexts)

Gendered categories

The template understands gendered categories: "men fooers", "male fooers", "women Fooers", "female fooers".

When applied to a gendered category, it makes the appropriate adjustments to the parent categories, and adds a link to the sibling category for the other gender (if it exists). This is actually one of its most helpful uses, because gendered by-century categories for Northern Ireland occupations have five parent categories. Manually-built categories rarely get them all right.

However, it doesn't work for "actresses" categories. Don't use it on actress categories.

Substitition

This template should not be substituted. Doing so makes a hideous mess,

Tracking

Category:Template:Nth-century fooers from Northern Ireland with Supercategory and Supercategory2 (2)