自从作者停止工作以来，我一直在维护WordPress的SearchEverything插件。我今天将我的一个网站升级到wp 3.7，但在搜索时出现以下错误：

WordPress database error: [您的SQL语法有错误；请查看与您的MySQL server版本对应的手册，以了解可在附近使用的正确语法\'))) AND ncca_wp_posts.post_type IN (\'post\', \'page\', \'attachment\', \'archive\', \'r\' 第1行]

SELECT DISTINCT SQL_CALC_FOUND_ROWS 
    ncca_wp_posts.* 
FROM ncca_wp_posts 
LEFT JOIN ncca_wp_term_relationships AS trel 
    ON ( ncca_wp_posts.ID = trel.object_id ) 
LEFT JOIN ncca_wp_term_taxonomy AS ttax 
    ON ( 
        ( ttax.taxonomy = \'category\' 
            OR ttax.taxonomy = \'post_tag\' 
            OR ttax.taxonomy = \'years\' 
            OR ttax.taxonomy = \'archive-tags\' 
            OR ttax.taxonomy = \'course\'
        ) 
        AND trel.term_taxonomy_id = ttax.term_taxonomy_id
    ) 
LEFT JOIN ncca_wp_terms AS tter 
    ON (ttax.term_id = tter.term_id) 
LEFT JOIN ncca_wp_postmeta AS m 
    ON (ncca_wp_posts.ID = m.post_id) 
WHERE 1=1 
    AND ( 
        ( 
            ((())) 
            AND ncca_wp_posts.post_type IN (\'post\', \'page\', \'attachment\', \'archive\', \'research-project\') 
            AND (
                ncca_wp_posts.post_status = \'publish\' 
                OR ncca_wp_posts.post_status = \'private\'
            )
        ) 
        AND post_type != \'revision\'
    )
    AND post_status != \'future\' 
    ORDER BY ncca_wp_posts.post_title LIKE \'% %\' DESC, ncca_wp_posts.post_date DESC LIMIT 0, 24

编辑：谢谢凯撒。下次上船。如上所述，我可以看到错误是由SQL语法错误引起的，但我不知道如何修复它。有人能建议如何修改这行代码以使其正常工作吗？

    function se_search_default() {

    global $wpdb;

    $n = ( isset( $this->query_instance->query_vars[\'exact\'] ) && $this->query_instance->query_vars[\'exact\'] ) ? \'\' : \'%\';
    $search = \'\';
    $seperator = \'\';
    $terms = $this->se_get_search_terms();

    // if it\'s not a sentance add other terms

     //COMMENT OUT/REMOVE
    //$search .= \'(\';
    foreach ( $terms as $term ) {
        $search .= $seperator;


        $search .= sprintf( "((%s.post_title LIKE \'%s%s%s\') OR (%s.post_content LIKE \'%s%s%s\'))", $wpdb->posts, $n, $term, $n, $wpdb->posts, $n, $term, $n );

        $seperator = \' AND \';
    }
     //COMMENT OUT/REMOVE
    //$search .= \')\';
    return $search;
}