getPrev($date, $post_type = ‘post’)

<?php
/**
* Получает пердыдущую запись по Дате, в WordPress
* @param string $post_type
* @param string $date Дата в формате Y-m-d H:i:s
* @return integer
*/
function getPrev($date, $post_type = 'post')
{
    global $wpdb;
    $result = $wpdb->get_results(
      "SELECT wp_posts.ID, wp_posts.post_name, wp_posts.post_title 
          FROM qydqk_posts AS wp_posts
          WHERE wp_posts.post_date = (
              SELECT max(wp_posts.post_date) 
              FROM qydqk_posts AS wp_posts 
              WHERE wp_posts.post_date < \"$date \" 
              AND wp_posts.post_type = '$post_type' 
              AND wp_posts.post_status = 'publish'
              ORDER BY wp_posts.post_date DESC
          ) 
          AND wp_posts.post_type = '$post_type' 
          AND wp_posts.post_status = 'publish'
          ORDER BY wp_posts.post_date DESC"
    );
    if (empty($result)) {
      $result = $wpdb->get_results(
        "SELECT wp_posts.ID, wp_posts.post_name, wp_posts.post_title 
              FROM qydqk_posts AS wp_posts 
              WHERE wp_posts.post_date = (
                  SELECT max(wp_posts.post_date) 
                  FROM qydqk_posts AS wp_posts 
                  WHERE wp_posts.post_type = '$post_type' 
                  AND wp_posts.post_status = 'publish'
                  ORDER BY wp_posts.post_date ASC
              ) 
              AND wp_posts.post_type = '$post_type' 
              AND wp_posts.post_status = 'publish'
              ORDER BY wp_posts.post_date DESC"
      );
    }
    return intval($result[0]->ID);
}