Hi @timo
For the tax_query, change your code to the following:
function my_relationship_query( $args, $field, $post )
{
// increase the posts per page
$args['posts_per_page'] = 10;
$args['tax_query'] = array(
array(
'terms' => '30'
)
);
return $args;
}
Check out this link for more information: https://codex.wordpress.org/Class_Reference/WP_Query#Taxonomy_Parameters
For accessing the term object id dynamically, you could consider using get_queried_object() function. Here is the link to the documentation: https://codex.wordpress.org/Function_Reference/get_queried_object
