Related Posts Returning Based on Just 1 Common Taxonomy Instead of Number of Relate Taxonomy.

[timnolte]

I am calling the following code:

km_rpbt_get_related_posts(
	$post->ID,
	array(
		'post_types'     => $related_post_types, // array 
		'taxonomies'     => $related_taxonomies,
		'exclude_posts'  => $exclude_posts,
		'limit_posts'    => $limit,
		'posts_per_page' => $limit, // Get all the results based on the limit.
		'fields'         => 'ids',
	)
)

Where I am using arrays of multiple post types and a single taxonomy, the post_tags taxonomy. The problem I'm seeing is that posts type that have more than one tag in common are not being returned as a priority. I get records first that have only 1 tags that is the same. Basically, contrary to the documentation, "Posts with the most terms in common will display at the top!" is not happening.

[keesiemeijer]

Just for testing try it without exclude_posts and setting posts_per_page to -1. Do the posts with multiple related tags show up in the list of related posts (but in the wrong order)?

And use post_tag if you're using the tags taxonomy.

[timnolte]

@keesiemeijer sorry for the delay. I corrected my issue description. It is post_tags that I'm using. I did some testing and excluding posts doesn't appear to be the issue, if I attempt to set limit_posts to the value of how many posts I need then the sorting doesn't happen. If I exclude limit_posts and just use the posts_per_page to limit how many I get then the sort it working and I get the expected results.