CachingAds.php

<?php

namespace To4Framework;

if (!defined('ABSPATH')) {
  exit;
}

class CachingAds extends Caching
{

  /**
   * Static property to hold our singleton instance
   *
   */
  static $instance = false;

  /**
   * Custom constructor using static method
   * @see https://carlalexander.ca/designing-class-wordpress-hooks/
   * @return void
   */
  public static function init()
  {
    $self = new self();
    add_action('publish_advanced_ads', [$self, 'purgeAfterAdsUpdate'], 20, 2);
    add_action('delete_post', [$self, 'purgeAfterAdsUpdate'], 20, 2);
    add_filter('advanced-ads-update-placements', [$self, 'purgeAfterAdsPlacementUpdate'], 20);
    add_filter('edited_advanced_ads_groups', [$self, 'purgeAfterAdGroupUpdate'], 20, 2);
    add_filter('created_advanced_ads_groups', [$self, 'purgeAfterAdGroupUpdate'], 20, 2);
    add_filter('delete_advanced_ads_groups', [$self, 'purgeAfterAdGroupDeletion'], 20, 4);
  }

  /**
   * Trigger global cache clear when advanced ads banner is updated or published.
   * @param  int $post_id
   * @param  object $post
   * @uses  cache_flush() Clears entire WPE cache: Memcache, Varnish, MaxCDN
   */
  public function purgeAfterAdsUpdate($post_id, $post) {
    $screen = \get_current_screen();
    $postType = get_post_type( $post_id );

    if('advanced_ads' === $postType && 'advanced_ads' === $screen->id) {
      parent::globalCacheFlush('Cache purge triggered after AA ad update.', false);
    }

  }

  /**
    * Trigger global cache clear when Advanced Ads placement is updated or created.
   * @param  mixed $success
   * @return mixed $success
   */
  public function purgeAfterAdsPlacementUpdate($success) {
    // Check if $success has a value
    if( isset($success) ) {
      parent::globalCacheFlush('Cache purge triggered after AA placement update.', false);
    }

    return $success;
  }

  /**
    * Trigger global cache clear when Advanced Ads group ad is updated or created
    * @see https://developer.wordpress.org/reference/hooks/created_taxonomy/
    * @see https://developer.wordpress.org/reference/hooks/edited_taxonomy/
    * @param int $term_id
    * @param int $tt_id
   */
  public function purgeAfterAdGroupUpdate($term_id, $tt_id) {
    parent::globalCacheFlush('Cache purge triggered after AA ad group update.', false);
  }

  /**
    * Trigger global cache clear when Advanced Ads group ad is updated or created
    * @see https://developer.wordpress.org/reference/hooks/delete_taxonomy/
    * @param int $term_id
    * @param int $tt_id
    * @param WP_Term $deleted_term
    * @param array $object_ids
   */
  public function purgeAfterAdGroupDeletion($term_id, $tt_id, $deleted_term, $object_ids) {
    parent::globalCacheFlush('Cache purge triggered after AA ad group deletion.', false);
  }

}