If you’re using a relationship field to a Taxonomy and you want to make sure it updates the Taxonomy accurately, here’s a post_save action hook you can use to update the Taxonomy from a relationship field.
Using add_to and remove_from to add items to a relationship field and remove items from a relationship.
$params = array(
'select' => 't.*, COUNT( relationship.ID ) AS relationship_count',
'groupby' => 't.ID',
'having' => 'relationship_count < 2',
How to pull records from a related pod through the Relationship Field in a Custom Post Type
In this quick tutorial we will show you how to get values from a Pods’ relationship field, or a bi-directional relationship field between two different post types. There are many possible types of relationship fields, but one of the most common and powerful uses for them is to relate one type of post type to …