Wikipedia:WikiProject Ireland/By-county category navigation

A series of navigation templates has been created to facilitate navigation between categories by county in the Island of Ireland.

Each of them works in the same way: without requiring any parameters, each of them will create a navbox with links to identically-named categories for other counties.

So, on "Category:History of County Foo", they create a set of links "Category:History of County Bar" etc.

Non-existent categories are not linked. Instead, they are greyed out.

Variations
Several variations exist, for different purposes.

By far the most commonly-used is Template:AllIrelandByCountyCatNav. This is for category sets which cover the whole Island of Ireland

Some situations require slightly different treatment:


 * Republic of Ireland only
 * Template:RepublicOfIrelandOnlyByCountyCatNav. This is for category sets which include only the Republic, e.g. National Monuments by county. It uses the 26 "traditional" counties, plus the new subdivisions of County Dublin.
 * Northern Ireland only
 * Template:NorthernIrelandOnlyByCountyCatNav. This is for category sets which include only the 6 "traditional" counties of Northern Ireland, e.g. The Troubles by county
 * Pre-partition
 * See Template:PrePartitionIrelandByCountyCatNav. This is for use on category sets which wholly pre-date the partition of Ireland in 1921–22. It creates a navbox which is:
 * a single list (i.e. is not divided into Norniron/Republic)
 * Uses the old names for two midlands counties: King's County instead of County Offaly, and Queen's County instead of County Laois
 * GAA
 * See Template:GAAbyCountyCatNav. This is for use on Gaelic Athletic Association category sets. The differences are that
 * The word "County" is not used in these categories
 * The list is not divided between the Republic/Norniron
 * Some overseas counties of the GAA are included
 * The GAA uses "Derry" rather than Londonderry

Errors
If the template is used on a category whose name does not include a valid county, then an error message is displayed.

Development
These template started off as a proposal at WP:WikiProject Ireland/CatNavProposal. The idea was refined through discussion at WT:WikiProject Ireland/CatNavProposal, and deployed in May 2018 after a 15-day trial on 150 pages.