WordPress: how to find a page's latest grandchild
- Date
- January 11th, 2010
- Category
- Development
- Tags
- frontpage, grandchild, grandchildren, wordpress
- Discussion
- Leave a comment
In the context of the website redesign of the School of Computer Graphic Design that i teach in, i had the need to display on the frontpage a link to the latest grandchild of a page. It didn't turn out as easy as i thought, but i somehow managed it. Here is how.
I looked around for any built-in function or plugin but nothing suited my need. Eventually, i resorted to doing a specific query in the database.
Here is the query and the loop that uses the dataset, as they sit in my frontpage.php template. It results in displaying a link with the latest testimonial's image to make it stand out.
PHP:
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$querystr = "SELECT p3.*
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FROM $wpdb->posts p1
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LEFT OUTER JOIN $wpdb->posts p2 ON p2.post_parent=p1.ID
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LEFT OUTER JOIN $wpdb->posts p3 ON p3.post_parent=p2.ID
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WHERE (p1.post_status = 'publish' AND p1.post_type = 'page' AND p1.ID ='28') AND (p3.post_status = 'publish' AND p3.post_type = 'page') ORDER BY p3.post_date DESC LIMIT 0,1";
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$myposts = $wpdb->get_results($querystr, OBJECT);
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if ($myposts) {
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foreach($myposts as $post) :
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setup_postdata($post);
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$postimageurl = get_post_meta($post->ID, 'post-img', true);
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$postimageurl = ($postimageurl) ? $postimageurl : '/medias/img/temoignage-banner.jpg';
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?>
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<div id="importantBanner" style="background-image:url(<?php bloginfo('url');
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echo $postimageurl; ?>);margin:0;padding:0;">
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<a style="border-width:0" href="<?php the_permalink(); ?>" rel="bookmark" title="<?php the_title(); ?>" id="temoignageLink">
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<span class="tradeGothic" style="display:block;padding:7px 0 0 20px;font-size:12pt"><?php the_title(); ?></span>
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</a>
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</div>
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<?php endforeach; ?>
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<? }
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?>
If you have any question, shoot!
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