How to limit the number of Related Posts?

Question

In my theme's file single.php, there is this part of code to get Related Videos:

      <?php
      if ( $wp_query ->have_posts() ) {

        while (have_posts()) : the_post();
          get_template_part( 'preview', get_post_format() );
        endwhile;

      }

      wp_reset_postdata(); 
    ?>

But this get the entire loop of all posts on the website. I'm wondering, is there a way to limit this and display for example 10 posts? Thanks a lot.

Answer 1

You need the argument post_per_page to limit the posts.

Before your loop it should be something like this.

$args = array (
    'post_type'              => 'custom_post',
    'posts_per_page'         => '10',
);

$wp_query = new WP_Query( $args ); 


// your loop 
if ( $wp_query ->have_posts() ) {

    while (have_posts()) : the_post();
      get_template_part( 'preview', get_post_format() );
    endwhile;

}

wp_reset_postdata(); 

If it is the custom post, make sure to replace custom_post