get_next_post() and get_previous_post() return wrong posts

Question

I’ve been trying to retrieve the next and previous post in one of my Wordpress templates. Please note that I want to get the full post object instead of just the pre-formatted links to the posts.

The problem I face is that whenever I call these functions wrong posts are returned. They are in the same post type, but they are off by like a few ids (say 3/4).

// Get next and previous link
if ( have_posts() ) {
   while ( have_posts() ) {
      the_post();
       var_dump($post);
       var_dump(get_previous_post());
   }
}

The first variable dump returns me the correct post object. The second one returns a page that's around 4 IDs (they range from 64 - 60) off...

I tried calling the functions both with and without parameters, it returned false posts in both situations.

Hope someone has an answer.

Answer 1

The problem was that Wordpress uses these functions based on post_date ...

I did an import from an old CMS to Wordpress where I just added all posts within a loop. Some of the dates were a few seconds off. This caused the functions to return 'false' posts.

I actually wrote a custom class that handles getNext() and getPrevious() with a combined function called getSiblings() based on post_id.

I actually wrote a class that fully tackles this problem. Check github for the full code. Contribution would be very much appreciated :-)