我想修改wp\\u ajax\\u find\\u posts函数。它从find posts表单接收搜索字符串，并通过ajax提供搜索结果。部分函数如下所示：

function wp_ajax_find_posts() {
    global $wpdb;
    check_ajax_referer( \'find-posts\' );

    // ........
    $search .= " OR ($wpdb->posts.post_title LIKE \'%{$term}%\') OR ($wpdb->posts.post_content LIKE \'%{$term}%\')";
    $posts = $wpdb->get_results( "SELECT ID, post_title, post_status, post_date FROM $wpdb->posts WHERE post_type = \'$what\' AND post_status IN (\'draft\', \'publish\') AND ($search) ORDER BY post_date_gmt DESC LIMIT 50" );

    $html = //......

    $x = new WP_Ajax_Response();
    $x->add( array(
        \'what\' => $what,
        \'data\' => $html
    ));
    $x->send();
}
add_action( \'wp_ajax_find_posts\', \'wp_ajax_find_posts,1)

我想修改$post行，将post\\u author添加到查询中，以便将结果限制在当前loggin用户范围内。我想学习如何连接这个wp\\u ajax\\u find\\u post函数，让它接受我修改过的$post。我是否必须执行remove\\u action和add\\u action才能完全重写上述功能？

add_action( \'wp_ajax_find_posts\', \'wp_ajax_find_posts\', 0 );

//This goes at the top in the function
global $current_user;
get_currentuserinfo();

//Change the get_posts in the original code with this
$posts = get_posts(array(\'s\' => $q, \'author\' => $current_user->ID, \'posts_per_page\' => 2));