Single: Prev and next Post in same order as main query, in all categories

Question

I am using something like these arguments to order the archive loop, to order posts by a custom field.

$args = array(  
    'category_name' => $filter_cat, 
    'posts_per_page' => -1,
    'meta_key' => 'year_start',
    'orderby' => array( 'meta_value_num' => 'DESC', 'title' => 'ASC' )  
);

On single.php, how can I add a link to the next post and previous post in the same order as the main query above?

I want to have the possibility to skip from one post to another through all posts (not in one category).

Answer 1

So from the research I have done into this I've found out the follow:

To display the Text as a Link, without the Post Title but within the same category you would use the follow

<?php next_post_link( '%link', 'Next post in category', TRUE ); ?>

To do it with the same custom taxonomy the following applies

<?php next_post_link( '%link', 'Next post in taxonomy', TRUE, '', 'my_custom_taxonomy' ); ?>

I'm sure by looking into next_post_link and previous_post_link you will be able to find a way to link the links with your custom field.

Best of luck :)