Infobox and create a category
Fragment of a discussion from Project:Support desk
Hi Bastor,
(1) It's best to use parser functions for what you're trying to achieve.
In the template you can have something like:
{{#if:{{{Colour|}}}|[[Category:{{{Colour|}}}]]}}
(2) I don't think you can automatically make the new category (Category:Red in your example) a member of Category:Colour. You'll have to create the category manually if no such category exists and assign it to the appropriate category.
(3) Articles assigned to a category will be automatically listed there by page title. There are several ways to manipulate the display of article titles, but only up to a certain extent.
Hope that helps.
Cavila MW 1.17, MySQL 5.1.57, Php 5.2.17
