حذف اتوماتیک همه ی تصاویر پست پس از زمان مشخص

[T.Toosi]

add_action( 'save_post', 'cleanup_old_post_images', 10, 3 );

function cleanup_old_post_images( $post_ID, $post, $update ) {
  if ( $update ) return; // do nothing on update
  $postid51th = get51th_postid(111); // <----------- CAT ID
  if ( ! empty( $postid51th ) && is_numeric( $postid51th ) ) {
    delete_post_media( $postid51th ); // see below, function in OP
  }
}

function get51th_postid($catid) {
  return $GLOBALS['wpdb']->get_var(
    "SELECT ID
    FROM wp_posts
    LEFT JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id)
    LEFT JOIN wp_term_taxonomy ON (wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id)
    WHERE wp_term_taxonomy.term_id IN ({$catid})
    GROUP BY wp_posts.ID LIMIT 50, 1"
  ); 
}

function delete_post_media( $post_id ) {
  $attachments = get_posts( array(
    'post_type'      => 'attachment',
    'nopaging'       => TRUE,
    'post_parent'    => $post_id
  ) );
  if ( empty( $attachments ) ) return; // added this line to prevent errors
  foreach ( $attachments as $attachment ) {
    if ( false === wp_delete_attachment( $attachment->ID ) ) {
      // Log failure to delete attachment.
    }
  }
}