Relationship query from custom post type on external page

• duuuaaaane

• February 3, 2016 at 10:35 am

On my homepage I want to feature the information of the next coming event (custom post type), this is working and it displays all the info from the event post – except the info from the Relationship field.

The below code works on the single-event.php page but within the loop on the homepage it can’t grab them – can anybody explain why?

            <?php
                        $today = current_time('Ymd');

                        $args = array(
                                            'post_type' => 'event',
                                            'post_status' => 'publish',
                                            'posts_per_page' => '1',
                                            'meta_query' => array(
                                            array(
                                                'key' => 'date',
                                                'compare' => '>=',
                                                'value' => $today,
                                            )
                                            ),
                                            'meta_key' => 'date',
                                            'orderby' => 'meta_value',
                                            'order' => 'ASC',
                                            'paged' => ( get_query_var('paged') ? get_query_var('paged') : 1 ),
                                        );
                                        $query = new WP_Query($args);
                                        if ($query->have_posts()) :
                                        while ($query->have_posts()) : $query->the_post(); 
                                    ?>
                                        <tr>
                                            <td class="gig_date2">
                                                <?php $date = get_field('date');
                                                    $dateD = date("d", strtotime($date));
                                                    $dateM = date("M", strtotime($date));
                                                    $dateY = date("Y", strtotime($date)); 
                                                ?>

                            <?php echo $dateM; ?> <?php echo $dateD; ?> <?php echo $dateY; ?> @ <?php the_field('venue'); ?>
                                 
                    <div class="entry-content">
                        <strong>Date:</strong> <?php the_field('date'); ?>

                        <strong>Venue:</strong> <?php the_field('venue'); ?>

                        <?php 

                        $posts = get_field('performers');

                        if( $posts ): ?>
                            <ul>
                            <?php foreach( $posts as $post): // variable must be called $post (IMPORTANT) ?>
                                <?php setup_postdata($post); ?>
                                <li>
                                    <?php the_field('name'); ?>
                                </li>
                            <?php endforeach; ?>
                            </ul>
                            <?php wp_reset_postdata(); // IMPORTANT - reset the $post object so the rest of the page works correctly ?>
                        <?php endif; ?>
                        

                    </div>

        <?php endwhile; ?>
        <?php endif; ?><?php wp_reset_postdata(); ?>+ LINE-UP +</h2>

• John Huebner

• April 6, 2016 at 11:38 am

I’ve boiled down your code to the important bits so that it’s easier to see why it’s not working and what to change

<?php 
  // start of main loop
  while (have_posts()) {
    // main query is being used
    the_post();
    $args = array(
      // your query args here ...
    );
    $query = new WP_Query($args);
    if ($query->have_posts()) {
      while ($query->have_posts()) {
        // sub qury is being used
        // do some stuff
        $query->the_post();
        $posts = get_field('performers');
        if( $posts ) {
          // hold the current post in a temp var
          // why below
          $temp_var = $post;
          foreach( $posts as $post) {
            setup_postdata($post);
            // do stuff
          }
          // if we do wp_restet_postdata
          // it resets to the main query, not the secondary query
          // wp_reset_postdata();
          // do this instead
          $post = $temp_var;
        }
      }
      // do some more stuff
      // this resets to the main query
      wp_reset_postdata();
    }
  } // end main loop
?>