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Re-Envisioned › Support › MB Relationships › MB Relationships – Using each_connected multiple times

  • Creator
    Topic
  • January 26, 2018 at 9:54 PM #8357
    Resolved ecurtain
    Participant

    I’m having trouble setting up the each_connected multiple times example. My project has three post types – products, groups, manufacturers – and I’ve defined products_to_groups and products_to_manufacturers relations.

    The single pages work as expected and correctly display the linked items.

    The archive page is where it has problems. I set up the loop:

    
    $my_query = new WP_Query( array( 
        'post_type' => 'products' 
    ) );

    And get the connected items:

    
    MB_Relationships_API::each_connected( array(
        'id'   => 'products_to_groups',
        'from' => $my_query->posts, 
        'property' => 'connected_groups',
    ) );

    MB_Relationships_API::each_connected( array(
        'id'   => 'products_to_manufacturers',
        'from' => $my_query->posts, 
        'property' => 'connected_manufacturers',
    ) );

    And try to perform the loop, displaying the connected items:

        
    while ( $my_query->have_posts() ) : $my_query->the_post();

        foreach ( $post->connected_groups as $post ) : setup_postdata( $post );
            the_title(); 
        endforeach;
        wp_reset_postdata(); 

        foreach ( $post->connected_manufacturers as $post ) : setup_postdata( $post );
            the_title();  
        endforeach;
        wp_reset_postdata();  

    endwhile;

    The first foreach works and shows the connected groups. The second fails with an “invalid argument” warning. If I switch the inner foreach loops, the first succeeds & the second fails again.

    What am I doing wrong? Thanks!

  • Creator
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  • Author
    Replies
  • January 29, 2018 at 8:46 AM #8375
    Anh Tran
    Keymaster

    Hello,

    I’ve just tested again with a similar code and here is my result:

    View post on imgur.com

    Can you check your code again please?

    January 29, 2018 at 11:26 PM #8388
    ecurtain
    Participant

    Hello Anh,

    Thanks for your reply. I had a hard time following the animated gif because it zips through the code quickly. May I suggest you post the code from the gif as an example? It would be much easier to read.

    I’m afraid I’m unable to get it to work – I’m getting the same foreach warnings.
    For now, I’ll need to keep using my current solution.

    January 31, 2018 at 2:13 PM #8410
    Anh Tran
    Keymaster

    No problem. Here is the code for registering relationships:

    add_action( 'mb_relationships_init', function () {
	MB_Relationships_API::register( array(
		'id'   => 'posts_to_pages',
		'from' => 'post',
		'to'   => 'page',
	) );
	MB_Relationships_API::register( array(
		'id'   => 'posts_to_posts',
		'from' => 'post',
		'to'   => 'post',
	) );
} );

    And here is the code to fetch connections (in index.php file):

    global $wp_query;
MB_Relationships_API::each_connected( array(
	'id'       => 'posts_to_pages',
	'from'     => $wp_query->posts,
	'property' => 'connected_pages',
) );

MB_Relationships_API::each_connected( array(
	'id'       => 'posts_to_posts',
	'to'       => $wp_query->posts,
	'property' => 'connected_posts',
) );

    Here is the code in the content.php file:

    foreach ( $post->connected_pages as $post ) : setup_postdata( $post );
	the_title();
endforeach;
wp_reset_postdata();

echo '<hr>';

foreach ( $post->connected_posts as $post ) : setup_postdata( $post );
	the_title();
endforeach;
wp_reset_postdata();
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