Reply To: Youtube Oembed field not working

• pixelbar_adrian

• December 2, 2020 at 10:24 pm

We figured out that the oemebed functions aren’t cached so we wrote a simple snippet to enable transient cache for oembeds. Possibily not the best solution out there but it works on all our WordPress installations (100+):

if( !defined('PIX_OEMBED_CACHE_KEY') ) {
            define('PIX_OEMBED_CACHE_KEY', 'pix_oembed_');
        }

        function _wp_custom_oembed_cache_key($url, $args) {
            $args_serialized = serialize($args);
            return PIX_OEMBED_CACHE_KEY . md5("{$url}-{$args_serialized}");
        }

        /**
        * This function caches the result
        */
        function pix_cache_wp_oembed_get_function($data, $url, $args) {

            set_transient( _wp_custom_oembed_cache_key($url, $args), $data, 14*DAY_IN_SECONDS);
            return $data;

        }
        add_filter('oembed_result', 'pix_cache_wp_oembed_get_function', 999, 3);

        /**
        * This function serves the cached result
        */

        function pix_serve_wp_oembed_get_function($result, $url, $args) {

            if(trim($url) === '') {
                return '';
            }

            if($cached_result = get_transient(_wp_custom_oembed_cache_key($url, $args))) {
                return $cached_result;
            }

            return $result;

        }
        add_filter('pre_oembed_result', 'pix_serve_wp_oembed_get_function', 2, 3);

Feel free to let me know if it works for you!