I am working on a art gallery template that has a custom post type of "paintings". Each painting can be in a different custom taxonomy category "paintings-category" such as "studio", "plein air", and "new works".
Paintings can be both "studio" and "new works" or both "plein air" and "new works".
On the single-painting.php template for new works, I am using
previous_post_link() to navigate to other similar works.
Here is my issue: if I don't exclude any terms, the next painting may be "studio" but not "new works" for example. My code for that would look like this:
next_post_link('%link', '<i class="ion ion-md-arrow-dropleft"></i>', TRUE, '', 'painting-category');
If I exclude both "studio" and "plein air", no links show up at all, because it is technically excluding those posts. My code here looks like this:
$excluded_terms = '33,34'; next_post_link('%link', '<i class="ion ion-md-arrow-dropleft"></i>', TRUE, $excluded_terms, 'painting-category');
Is there are way to exclude specific terms without eliminating posts that are in both terms you want and don't want?