I'm developing a website in which child pages have a section displaying randomly its related pages which are its own siblings. They all have the same parent page.
Further explaining:
Parent page
Also, this display must be random, so that each page display will show a different range of related pages.
I'm imagining there might be a way to extend the wp_list_pages() in such a manner to display siblings. What I use in the parent page to display all children is:
<?php
wp_list_pages( array(
'title_li' => '',
'child_of' => $post->ID
));
?>
I need this because I don't want to install a plugin to add category to pages so that I can use an existing related posts/page plugin. Another solution would be the existence of a plugin that allows related pages to be siblings (I didn't find one... most use taxonomy).
Here's what I needed:
<?php
$args = array(
'post_type' => 'page',
'post_parent' => $post->post_parent,
'post__not_in' => array($post->ID),
'post_count' => 5,
'orderby' => 'rand'
);
$the_query = new WP_Query( $args );
?>
<?php if ( $the_query->have_posts() ) : ?>
<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
<li>
<a href="<?php the_permalink(); ?>" rel="post-<?php the_ID(); ?>" <?php post_class(); ?>><?php the_title(); ?></a>
</li>
<?php endwhile; ?>
<?php endif; ?>