mitchellkrogza

/*
 * WordPress: Remove unwanted image sizes.
 * Remove the three sizes medium_large, 1536x1536, 2048x2048
 * Not needed for 99% of Woocommerce stores
 */

add_filter('intermediate_image_sizes', function($sizes) {
  return array_diff($sizes, ['medium_large']);  // Medium Large (768 x 0)
});

mitchellkrogza

// A fix for the horribly slow WordPress post and product editor
// With many thanks to Jon Brown
// Read about it at https://9seeds.com/wordpress-admin-post-editor-performance/

/**
 * Remove Ancient Custom Fields metabox from post editor
 * because it uses a very slow query meta_key sort query
 * so on sites with large postmeta tables it is super slow
 * and is rarely useful anymore on any site
 */

mitchellkrogza

// This fixes the Google Pagespeed Insights warning for "Properly Size Images"
// First inspect your gallery thumbnails with chrome developer tools and find the size they are RENDERED at on DESKTOP
// In my case they render at exactly 165 x 110
// This function creates the correct gallery thumbnail size for Woocommerce and does NOT affect any image sizes of Flatsome
// After adding this function (use Code Snippets plugin) You need to Regenerate Thumbnails
// Use the plugin "Renegrate thumbmnails" with the setting "Skip regenerating existing correctly sized thumbnails (faster)."


add_filter( 'woocommerce_get_image_size_gallery_thumbnail', function( $size ) {
	return array(

mitchellkrogza

/*----------------------------------------------------------------------------*/
// redirects for login / logout / registration
/*----------------------------------------------------------------------------*/

// Redirect after login
add_filter('woocommerce_login_redirect', 'login_redirect');

function login_redirect($redirect_to) {

    return home_url();

mitchellkrogza

###
# Proxmox or other server kernel params cheap tune and secure.
# Try it if you have heavy load on server - network or memory / disk.
# No harm assumed but keep your eyes open.
#
# @updated: 2020-02-06 - more params used, adjust some params values, more comments on params
#

### NETWORK ###

mitchellkrogza

// Passive event listeners
// Add this to your own custom.js file < YOU NEED TO CREATE THIS FILE YOURSELF
// Call the file in your body using
// <script src="https://mydomain.com/wp-content/themes/my-child-theme/inc/js/custom.js" ></script>

jQuery.event.special.touchstart={setup:function( _, ns, handle ){this.addEventListener("touchstart", handle, { passive: !ns.includes("noPreventDefault") });}};
jQuery.event.special.touchmove={setup:function( _, ns, handle ){this.addEventListener("touchmove", handle, { passive: !ns.includes("noPreventDefault") });}};

mitchellkrogza

/**
 * Remove "nofollow" from add to cart / Select options buttons
 * What possessed Woocommerce to inplement this we shall never know ?
 */

add_filter( 'woocommerce_loop_add_to_cart_args', 'add_to_cart_args_remove_nofollow' );

function add_to_cart_args_remove_nofollow( $args ) {
	unset($args['attributes']['rel']);
	return $args;

mitchellkrogza

// Useful function to hide the product featured image for all products in specific categories
// The main image displayed when visiting products in these categories becomes the first gallery image
// Written by Mitchell Krog - mitchellkrog@gmail.com
// Replace categoryslug2 / categoryslug1 with your category slug (add to array as needed)

add_filter('woocommerce_single_product_image_thumbnail_html', 'remove_featured_image', 10, 2);
function remove_featured_image($html, $attachment_id ) {
    global $product;

if(  ! has_term( array( 'categoryslug1', 'categoryslug2' ) , 'product_cat', $product->get_id() ) ){

mitchellkrogza

add_filter( 'get_terms', 'ts_get_subcategory_terms', 10, 3 );
function ts_get_subcategory_terms( $terms, $taxonomies, $args ) {
$new_terms = array();
// if it is a product category and on the shop page
if ( in_array( 'product_cat', $taxonomies ) && ! is_admin() &&is_shop() || is_product_category()) {
foreach( $terms as $key => $term ) {
if ( !in_array( $term->slug, array( 'uncategorised','artist' ) ) ) { //pass the slug name here
$new_terms[] = $term;
}}
$terms = $new_terms;

mitchellkrogza

#!/bin/bash

# ---------------------------------------------------------------------------
# Generate WebP Images - Uses cwebp command line tool for Linux
# This will generate / re-generate all webp images for all JPG and PNG files
# Being command line based it is incredibly fast
# If you don't want to re-generate existing files set generateall=0
# If you want to re-generate everything set generateall=1
# USE this script at your own risk and Only if you know what you are doing
# Written by Mitchell Krog - mitchellkrog@gmail.com