[Resolved] Can't Display Child Posts of the parent post displayed in Taxonomy Archive Loop

[Author]

Posts

[Russell]

I have created two Post Types: "Solutions" and "Case Studies". "Solutions" have a taxonomy called "Solution Type", which is used to categorize each of the "Solutions" post types.

I created a "Solutions" Taxonomy Archive page, which lists all the "Solutions" Custom Posts for that taxonomy. Now, on this page, I want to show a list of all "Case Studies" custom post types that are either: 1) Children of one of the "Solutions" custom post types on the page; or by the "Solutions Type" taxonomy.

Originally, I had the taxonomy "Solution Type" turned on for both "Solutions" and "Case Studies" post types, but when i tried creating my taxonomy archive loop page, I couldn't filter results by Custom Post Type. The message in Views said it would display posts from both post types.

So, I thought that I could use parent-child relationships between the "Case Studies" and the "Solutions" post to display the related "Case Studies" that matched one of the many "Solutions" that were being listed on this taxonomy archive loop page. But, no posts are displayed when I turn on the post relationship query filter.

I'm hoping this is simple, what am I missing?

[Minesh Supporter Languages: English (English ) Timezone: Asia/Kolkata (GMT+05:30)]

Hello. Thank you for contacting the Toolset support.

I need to understand your structure first and how you establish post-relationship.

1)
Could you please share problem URL of your archive page?

2)
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I have set the next reply to private which means only you and I have access to it.

[Minesh Supporter Languages: English (English ) Timezone: Asia/Kolkata (GMT+05:30)]

As I understand - You want to display all "Case Studies" posts whose parent assigned to taxonomy -term "strategy"?

Originally, I had the taxonomy "Solution Type" turned on for both "Solutions" and "Case Studies" post types, but when i tried creating my taxonomy archive loop page, I couldn't filter results by Custom Post Type. The message in Views said it would display posts from both post types.
=> When you turn on taxonomy "Solution Type" for both "Solutions" and "Case Studies" post types, what if you create a page and create two different view's one for each post type to display results as you want?

[Russell]

Yes. I want to be able to classify the case studies using the same taxonomy categories as the Strategy. That way, when a strategy archive page is being displayed, any case study post that has the same taxonomy as the strategy listed, it will be displayed.

[Minesh Supporter Languages: English (English ) Timezone: Asia/Kolkata (GMT+05:30)]

I've added the following code to your current theme's functions.php file:

add_filter( 'wpv_filter_query', 'filter_by_parent_taxonomy', 10, 3 );
function filter_by_parent_taxonomy( $query_args, $settings, $view_id ) {
    if($view_id == 302){
        $args = array('post_type' => 'solutions',
		      'fields' => 'ids',
        		'tax_query' => array(
            array(
                'taxonomy' => 'solution-type',
                'field' => 'slug',
                'terms' => 'strategy',
            ),
        ),
     );

     $parent_ids= get_posts($args);
       $parent_ids[] = 0;
        if(!isset($query_args['meta_query'])){
            $query_args['meta_query'] = array();
        }
        $query_args['meta_query'][] = array(
            'key'     => '_wpcf_belongs_solutions_id',
            'value'   => $parent_ids,
            'compare' => 'IN',
        );


        
    }
    return $query_args;
}

Now, I can see the related child case studies posts attached to parent post type solutons taxonomy term strategy.
=> hidden link