订购带有元值的Wordpress帖子

Question

我在下面有这个代码,它基本上创建了4个链接,允许我对前端的帖子进行排序.

        <div class="sort">
            Sort projects by:
            <a href="http://mydomain.com/find-work/" >Latest Projects</a>
            <a href="http://mydomain.com/find-work/?order=asc&orderby=date" >Ending Soon</a>
            <a href="http://mydomain.com/find-work/?order=asc&orderby=meta_value_num&meta_key=proj_budget" >Budget Low</a>
            <a href="http://mydomain.com/find-work/?order=desc&orderby=meta_value_num&meta_key=proj_budget" >Budget High</a>
        </div>

        <?php   $my_query = new WP_Query( array( 
                        'post_type' => 'project',
                        'orderby' => get_query_var('orderby'),
                        'order' => get_query_var('order'),
                        ));      
                while ( $my_query->have_posts() ) : $my_query->the_post(); ?>

按日期排序的第二个链接工作正常但是按元值排序的两个链接不起作用.我显然在我的查询中遗漏了一些东西但是因为我的生活无法解决.

有任何想法吗？？

Answer 1

元值有点神奇:

$my_query = new WP_Query( array( 
                    // 'post_type' => 'project',
                    'meta_key' => 'proj_budget',
                    'orderby' => 'meta_value_num'
                    ));      

所有可能的值都在codex中解释:http://codex.wordpress.org/Class_Reference/WP_Query#Order_.26_Orderby_Parameters

Answer 2

这很简单:

new WP_Query( array( 
              //I used meta_value_num below, because it's about a numeric field
              //if you don't have a numeric field, just use meta_value
              "orderby" => 'meta_value_num',
              "meta_key" => 'price',
              "order" => 'DESC'
              ));