Ordering Wordpress posts with meta values

wordpress

Solution

It's a bit magical with meta values:

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

All the possible values are explained in codex: http://codex.wordpress.org/Class_Reference/WP_Query#Order_.26_Orderby_Parameters

Problem

I have this code below that basically creates 4 links to allow me to sort posts on the front end. ``` <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(); ?> ``` The second link, ordering by date works fine but the two links to order by meta values is not working. I am obviously missing something in my query but for the life of me can't work it out. Any ideas??

Original source