How to Avoid Duplicates when Post is from Multiple Categories?

  • Resolved HuntingTown

    (@huntingtown)


    10 years, 5 months ago

    I’m trying to create a related posts section that draws posts from the same categories as the current post. Currently I have this – 

    <ul>

		 <?php
		foreach( ( get_the_category() ) as $category ) {
		$the_query = new WP_Query('category_name=' . $category->category_nicename . '&showposts=5&order=ASC');
		while ($the_query->have_posts()) : $the_query->the_post();

		?>
					<li>
						<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><div class="rcont_image"><?php the_post_thumbnail( 'medium'); ?></div></a>
						<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><h6><?php the_title(); ?></h6></a>
					</li>

		<?php endwhile; ?>
		<?php
		}
		?>

		</ul>

    However this not only returns the current post (which I don’t want) but also returns duplicates for every category attributed to the post.

    For instance, if the current post is in the categories
    -Travel
    -Asia
    -Thailand

    It returns that post three times (one for each category) and similar for any other posts with multiple categories.

    How can I get it to just return a post once?

Viewing 2 replies - 1 through 2 (of 2 total)

  • You can create a ‘$post_not_in’ array and add each ID to it as you display a post:

    while ( have_posts() ) { the_post();
   $post_not_in = array($post->ID);  // Save the current post ID

?>
<ul>

   <?php
   foreach( ( get_the_category() ) as $category ) {
      $args = array(
         'category_name' => $category->category_nicename,
         'showposts' => 5,
         'order' => 'ASC',
         'post__not_in' => $post_not_in,
      );
      $the_query = new WP_Query($args);
      while ($the_query->have_posts()) : $the_query->the_post();
         $post_not_in[] = $post->ID;
         ?>
         <li>
            <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><div class="rcont_image"><?php the_post_thumbnail( 'medium'); ?></div></a>
            <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><h6><?php the_title(); ?></h6></a>
         </li>

      <?php endwhile; ?>
      <?php
   }
   ?>

</ul>
    Thread Starter HuntingTown

    (@huntingtown)

    You are a scholar and a king among men. That worked a treat ??

Viewing 2 replies - 1 through 2 (of 2 total)
  • The topic ‘How to Avoid Duplicates when Post is from Multiple Categories?’ is closed to new replies.