A variable product with four sizes and three colours is not one row. Every combination is a product_variation post carrying its own meta, so a catalogue that reads…
Three developers on three laptops running three PHP builds against three MySQL versions produce bugs that only reproduce for one of them, and a production server that resembles…
The activity stream is not posts. It has its own table, its own class and its own template loop, so every habit built around WP_Query — pre_get_posts, fields…
A site built as products.php, basket.php and checkout.php carries the same fifteen lines at the top of every file: session start, config include, database connection, a login check.…
A slow query log at the usual one-second threshold shows the report that takes four seconds and hides the nine hundred queries of eight milliseconds that the product…
BuddyPress extended profile fields look like user meta and are not. They live in their own tables — bp_xprofile_fields for the definitions, bp_xprofile_data for one row per field…
jQuery 2.0 arrived in April with the same API as 1.9 and the IE6–8 compatibility code deleted. The 1.x branch continues in parallel — 1.10 shipped the same…
Compass compiles the stylesheets and JSHint checks the scripts, and both are run by hand until somebody forgets. grunt-contrib-watch is the piece that makes a task runner worth…