I managed to get this working using nothing but WordPress filters, thanks to @Milo’s hint. Just note that these are pretty specific to my case but you shouldn’t have a problem modifying them for your own use. I am using Advanced Custom Fields with a Date Picker field called date and Prev/Next links only point … Read more
Take a look at get_previous_post() and get_next_post() and you’ll see they both use the get_adjacent_post() to find the previous or next post. Let’s say you want to fetch the ID of the immediately previous post based on the current post’s ID. This is what you’d do: function get_previous_post_id( $post_id ) { // Get a global … Read more
try to work with http://codex.wordpress.org/Function_Reference/get_adjacent_post; example: $next_post_link_url = get_permalink( get_adjacent_post(false,”,false)->ID ); $prev_post_link_url = get_permalink( get_adjacent_post(false,”,true)->ID );
Understanding the internals The “sort” order of adjacent (next/prev) posts is not really a sort “order”. It’s a separate query on each request/page, but it sorts the query by the post_date – or the post parent if you have a hierarchical post as currently displayed object. When you take a look at the internals of … Read more