Display only posts with comments

Question

I have this code to show recent posts from one category. I need to show only the posts which have comments. How can i do that via shortcode?

/* Shortcode to output recent posts from one category */

function display_cat_recent_posts() {
$args = array(
'post_type' => 'post',
'posts_per_page'=> 5,
'cat'=> 10,
);
$cat_recent_posts = new WP_Query( $args );
if( $cat_recent_posts->have_posts() ):
$output = '<ul>';
while ( $cat_recent_posts->have_posts() ) : $cat_recent_posts->the_post();
$output .= '<li><a href="' . get_permalink() . '" title="' . get_the_title() . '">' . get_the_title() . '</a></li>';
endwhile;
$output .= '</ul>';
endif;
return $output;
wp_reset_postdata();
}
add_shortcode( 'recent-posts', 'display_cat_recent_posts' );

Thank you...

Answer 1

Since you are in a loop you can use the function get_comments_number().

Retrieves the value of the total number of comments, Trackbacks, and Pingbacks for a post. This tag must be within The Loop. Unlike comments_number() this function will return the value as a numeric value.

Use it for example as follows:

$num_comments = get_comments_number();

if ( $num_comments > 0 )
    $output .= "...";

So your code could look like this:

/* Shortcode to output recent posts from one category */
function display_cat_recent_posts() {
  $args = array(
    'post_type' => 'post',
    'posts_per_page'=> 5,
    'cat'=> 10,
  );

  $cat_recent_posts = new WP_Query( $args );

  if ( $cat_recent_posts->have_posts() ):
    $output = '<ul>';
    while ( $cat_recent_posts->have_posts() ) : $cat_recent_posts->the_post();
      if ( get_comments_number( ) > 0 ):
        $output .= '<li><a href="' . get_permalink() . '" title="' . get_the_title() . '">' . get_the_title() . '</a></li>';
      endif;
    endwhile;

    $output .= '</ul>';
  endif;

  return $output;

  wp_reset_postdata();
}

add_shortcode( 'recent-posts', 'display_cat_recent_posts' );