Yes, thanks. Took me some time to figure out the logic and integration with ST, given the circumstances.
a) First, the full code:
/*********************************************************************/
/**
* Strong Testimonials plugin: associate [attachment_category] to [wpm-testimonial] post-type
* https://wpshout.com/add-existing-taxonomies-wordpress-custom-post-types/
*/
add_action( 'init', 'ew_associate_taxonomy_to_testimonials', PHP_INT_MAX );
function ew_associate_taxonomy_to_testimonials() {
register_taxonomy_for_object_type( 'attachment_category', 'wpm-testimonial' );
}
/**
* Strong Testimonials plugin: associated taxonomy filter
* https://ww.wp.xz.cn/support/topic/associating-a-taxonomy/#post-9499788
*/
add_filter( 'wpmtst_query_args', 'ew_wpmtst_query_args__filter', 10, 2 );
function ew_wpmtst_query_args__filter( $args, $atts ) {
// filtering testimonials by associated taxonomy terms
// populated associated term(s) get compared against dummy ST category term(s) to match the query
if(
isset( $args['tax_query'] )
&& !empty( $atts['category'] )
):
// get ST category slug(s) for matching the term(s) in the associated taxonomy
$cat_ids = explode( ",", $atts['category'] );
foreach( $cat_ids as $cat_id )
{
// ensure only valid slugs get retrieved (pattern)
if( empty( $cat_slugs[] = get_term_by( 'id', $cat_id, 'wpm-testimonial-category' )->slug ) )
array_pop( $cat_slugs );
}
// replace query for associated taxonomy instead of native
$args['tax_query'] =
array(
array(
'taxonomy' => 'attachment_category',
'field' => 'slug',
'terms' => $cat_slugs,
'operator' => 'IN',
'include_children' => true
)
);
endif;
// error_log( var_export( $args, true ) );
return $args;
}
b) Further Explanation:
ST Views should work as usual, but checking ‘Categories’ now has a different meaning. They’re just labels for matching the associated taxonomy terms. Example:
Category slug: 'woodblocks' (0 items)
Assoc. Category slug: 'woodblocks' (10 items)
wp_query returns: 10 items
Of course, each testimonial must have checked some terms in the associated taxonomy tree first, which now appears as an extra box in the Testimonials Editor. Hitting any ST Categories isn’t required, but the label terms for a match must be present when setting a View.
If for some reason one would still prefer to use both taxonomies, then need to designate a view for the association and add a check for it, like this:
if(
( $atts['view'] == '1' ) /* [testimonial_view id=1] */
&& isset( $args['tax_query'] )
&& !empty( $atts['category'] )
):
HTH.
