One of Checkmate’s features is the ability to select multiple categories as feature categories. It wasn’t until far after the release a user brought up the fact it didn’t work…at all. So I set off to fix it thinking it was a trivial task using query_posts or get_posts. I was wrong. To keep everything as compatible as could be and offer the ease of use I intended took some digging. I ended up skipping all of WordPress’s functions and going strait to the database by writing a custom function.


