WordPress Clear oEmbed Cache Automatically on Post Save

wpep-course-example.php

<?php

add_action( 'save_post', function( $post_id ) {
  if( get_post_type( $post_id ) != WPEP_POST_TYPE_COURSE )
    return;

  global $wpdb;

  $wpdb->query( 'DELETE FROM `' . $wpdb->postmeta . '` WHERE `meta_key` LIKE "_oembed%" AND post_id = ' . $post_id );
});