One of the fields is named
lot which is an integer representing a Lot # for an auction.
I created a custom category page which generates a list of links for each Lot, ordered by the
lot field. This works great.
$args = array( 'post_type' => array('product'), 'cat' => 3, 'meta_key' => 'lot', 'orderby' => 'meta_value_num', 'order' => 'ASC' );
However... when you click on one of the lots, the Previous & Next post links aren't ordered by the
lot field anymore, they are ordered by publish date (which is the WP default). I am trying to figure out how I can change this default sort order for
next_post_link() to use custom field
lot instead of Publish date.