February 1, 2019 — What makes a database query fast or slow? Are WP_Query’s taxonomy queries fast? What about meta queries? In this talk, we’ll dig into the WordPress database schema, talk about what factors influence query performance, and learn how to sniff out potential performance problems before they ever give you a headache. Next, we’ll discuss strategies for refactoring queries to be as performant as possible, caching strategies, and more.
December 19, 2015 — Rewrite rules are a thorn in many WordPress developers’ sides. In this session, we’ll discuss a simple way to add automated testing for your rewrite rules to help speed up your development and allow you to deploy your custom rules with confidence and peace of mind.
September 1, 2013 — Demystify the Rewrite API and advanced permalink structures cookbook-style.Go through cool tricks like adding custom taxonomy slugs to custom post type permalinks, adding multiple taxonomies to a URL to make one appear to be the “parent” of another, and splitting a post into virtual sections via permalinks and break down all of the rewrite API functions and learn when to use each. And go through changing permalink structures without a mess of 404s.
August 24, 2013 — This presentation explores the Rewrite API by example. Create some advanced permalink structures like adding taxonomies to post type permalinks and see how the Rewrite API makes it both simple and elegant. It goes through what happens when we change permalinks, how WordPress intelligently and automatically handles some redirects.