I have a custom post type for a timeline activities.
each post of them has a custom field type of DATE. field name :activity-date
I'm using TYPES plugin for Custom Post Type and Custom Fields
I would like to order these posts by the custom date field, I tried the following but didn't work.
<?php $activities = new WP_Query( array(
'post_type' => 'timeline',
'posts_per_page' => -1,
'key' => 'activity-date',
'orderby' => 'meta_value_num',
'order' => 'ASC'
)); ?>