Display selected relationship as a String

• Kevin Mamaqi

• July 13, 2015 at 8:59 pm

Hello,

I got a CPT called events and would like to display the name of the related artist (which I am relating with the relationship field) to the event. This is my code, in which I can’t assign the field to a variable and then include the value into the loop:

<div class="container">
    <div class="row">  

     <table>
      <tr>
        <th>Artista</th>
        <th>Fecha</th>
        <th>Ciudad</th>
        <th>Información</th>
      </tr>

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

      $args = array(
        'post_type' => 'evento',
        'post_status' => 'publish',
        'posts_per_page' => '-1',
        'meta_query' => array(
          array(
            'key' => 'fecha_del_evento',
            'compare' => '>=',
            'value' => $today,
            ),
          ),
        'meta_key' => 'fecha_del_evento',
        'orderby' => 'meta_value',
        'order' => 'ASC',
        );

      $query = new WP_Query($args);
      if ($query->have_posts()) :
        while ($query->have_posts()) : $query->the_post(); 
      ?>

      <?php $i = 0;?>
      <?php if($i == 0){ echo "<tr>"; }?>
      <td><?php echo get_the_title( $artista_evento->ID ); ?></td>
      <?php $i++;?>
      <td><?php the_field('fecha_del_evento'); ?></td>
      <?php $i++;?>
      <td><?php the_field('lugar_del_evento'); ?></td>
      <?php $i++;?>
      <td><?php echo get_the_content(); ?></td>
      <?php $i++;?>
      <?php if($i == 4){ echo "</tr>"; $i=0;}?>
    <?php endwhile; ?>
    <?php if($i < 4) echo '</tr>'; ?>
  </table>

  <?php wp_reset_postdata(); ?>

<?php endif; ?>
</div><!-- END OF ROW -->
</div><!-- END OF CONTAINER -->

• John Huebner

• July 15, 2015 at 8:13 am

You need to move the get_field into the loop. You are performing this function outside the loop so the post ID is either wrong or non-existent when you call the function.

// ... code before query & loop

      $args = array(
        'post_type' => 'evento',
        'post_status' => 'publish',
        'posts_per_page' => '-1',
        'meta_query' => array(
          array(
            'key' => 'fecha_del_evento',
            'compare' => '>=',
            'value' => $today,
            ),
          ),
        'meta_key' => 'fecha_del_evento',
        'orderby' => 'meta_value',
        'order' => 'ASC',
        );

      $query = new WP_Query($args);
      if ($query->have_posts()) :
        while ($query->have_posts()) : $query->the_post(); 

        // put your get_field call here
        $artista_evento = get_field('artista_del_evento');
        $today = current_time('Ymd');

        // the rest of your template code ...

• Kevin Mamaqi

• July 15, 2015 at 5:44 pm

Hello John,

I recieve this message: Trying to get property of non-object in …/wildlion/wp-content/themes/wildlion/archive-evento.php on line 71 The Faith Keepers en dondesea

Line 71: <td><?php echo get_the_title( $artista_evento->ID ); ?></td>

• John Huebner

• July 15, 2015 at 9:29 pm

What is get_field('artista_del_evento'); returning.

Is this field set to return an Object or an ID?

You can add echo $artista_evento; to test what’s being returned.

• Kevin Mamaqi

• July 15, 2015 at 9:37 pm

It was returning an ID, now I’ve changed it to return an object (in the Back-End) and also changed the code, previously I was receiving the following message:

Trying to get property of non-object in… (same as above).

The final code:

$query = new WP_Query($args);
          if ($query->have_posts()) :
            while ($query->have_posts()) : $query->the_post();
          ?>

          <?php $i = 0;?>
          <?php if($i == 0){ echo "<tr>"; }?>
          <td>
            <?php
             $artista_evento = get_field('artista_del_evento');
                foreach ($artista_evento as $av) {
                    echo get_the_title( $av->ID );
                }
              ?>
          </td>
          <?php $i++;?>
          <td><?php the_field('fecha_del_evento'); ?></td>
          <?php $i++;?>
          <td><?php the_field('lugar_del_evento'); ?></td>
          <?php $i++;?>
          <td><?php echo get_the_content(); ?></td>
          <?php $i++;?>
          <?php if($i == 4){ echo "</tr>"; $i=0;}?>
        <?php endwhile; ?>
        <?php if($i < 4) echo '</tr>'; ?>
      </table>

<?php wp_reset_postdata(); ?>

• John Huebner

• July 15, 2015 at 9:42 pm

Did it clear up the error? is it working?

• Kevin Mamaqi

• July 15, 2015 at 9:44 pm

Sorry, yes, it is working. Thank you very much for your help.