A group inside a repeater inside a group inside a repeater

• benblue

• August 31, 2020 at 4:00 am

I am having trouble getting the values of the galleries, which are inside a group, which is inside a repeater, which is inside a group, which is inside a repeater. Everything works great if I move the gallery out out of group_parent to be the same level as that group, but I need it inside. So I think my error is in how I am calling that 2nd group. I’ve tried different things, looking at the resource pages the whole time, but still am stuck. Here is the code:

<?php
// Parent Repeater
if( have_rows('parent_gallery') ):
    // Loop through rows.
    while( have_rows('parent_gallery') ) : the_row(); 
        // parent group, nested in parent repeater
        $group_parent = get_sub_field('group_parent');

        if ($group_parent): 
            // Repeater inside group
            if( have_rows('children_galleries') ):
                // Loop through rows.
                while( have_rows('children_galleries') ) : the_row();

                $gallerySizeSelect = get_sub_field('gallery_size');
                // $title_group = get_sub_field('title_group');
             
                // Group inside nested repeater
                $group = get_sub_field('images_group');
                // Get galleries
                $images = $group['gallery'];
                if( $group): ?>
                    <div class="images_group">
                        <?php
                        if( $images ): ?>
                            <ul class="dev-gallery">
                                <?php foreach( $images as $image ): ?>
                                    <li>
                                        <img src="<?php echo esc_url($image['sizes']['thumbnail']); ?>" alt="<?php echo esc_attr($image['alt']); ?>" />
                                    </li>
                                <?php endforeach; ?>
                            </ul>
                        <?php endif; ?>
                    </div>
                    <?php endif;
                endwhile;
            endif;
        endif; 
    endwhile;
endif; ?>

Thanks!

• John Huebner

• September 2, 2020 at 11:30 pm

You cannot mix get_sub_field() and have_rows().

$group_parent = get_sub_field('group_parent');

gets an array, including the repeater sub field and its sub fields.
Once you do this then you cannot use have_rows() on the sub fields of this field because you are already inside a have_rows() loop for ‘group_parent’

basically you either need to loop over the array returned without using have_rows() or you always need to use have_rows(). You cannot loop over a sub fields that is a repeater or a group without looping over the parent repeater or group.

// have rows
while( have_rows('parent_gallery') ) ....
  while (have_rows('group_parent')) .....
    while( have_rows('children_galleries') ) .....

// using the array, I'm not real sure about this but hopefully you get the idea
while( have_rows('parent_gallery') ) : the_row();
  $group_parent = get_sub_field('group_parent');
    ....
      $children_galleries = $group_parent['children_galleries'];
      foreach ($children_galleries as $gallery)

at any rate, if you output the array you’ll see what you’re working with

$group_parent = get_sub_field('group_parent');
echo '<pre>'; print_r($group_parent); echo '</pre>';

at each nested level you have a choice, get the sub fields contents or use another have_rows() loop. If you get the sub field values then from that point on you must use the array that is returned and you can no longer use have_rows() for any of its sub fields that are repeaters or groups.