Wordpress: How to display post count in author page by custom taxonomy

Question

I am trying to display the custom taxonomy in author page with a counter but seems i don't know how to do it.

i have a code in function.php

    add_action( 'pre_get_posts', function ( $q ) {

    if( !is_admin() && $q->is_main_query() && $q->is_author() ) {

        $q->set( 'posts_per_page', 100 );
        $q->set( 'post_type', 'custom_feedback' );

    }

});

and in my author page :

<div class="feedback-respond"> 
         <h3 class="feedback-title">User Feedback </h3>
             <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
               <?php the_content(); ?>
             <?php endwhile; else: ?>
               <p><?php _e('No posts by this author.'); ?></p>
             <?php endif; ?> 
            </div>

The code works for all the author profile but i don't know how to get the the custom taxonomy to display like this:

User Feedback

6 POSITIVE feedback 4 NEGATIVE feedback

all feedback goes here

all feedback goes here

all feedback goes here

By the way it is a custom post type (custom_feedback)and custom taxonomy(feedback_taxonomy) with two category Positive and Negative.

Please help masters?

Answer 1

Your only way to acvieve this will be to run two separate queries and counting the posts returned from the two separate queries. For this we will use get_posts as get_posts already passes a few important defaults to WP_Query to make the query faster and more performance orientated.

We will add one huge time and resource saver to the query, 'fields' => 'ids' . What this does is, it fetches only the post ids, and not the complete post object. This can cut query time and db queries by 99%, so even though you are going to run 2 separate queries on the complete database, the loss in page performance will be unnoticable.

Lets put everything in code ( This goes into author.php, and note, this code is untested and needs at least PHP 5.4+ )

$author_id = get_queried_object_id(); // Gets the author id when viewing the author page

// Add our term slugs into an array. 
$terms = ['positive', 'negative']; // Just make sure these values are correct
$count = [];
foreach ( $terms as $term ) {
    // Build our query
    $args = [
        'nopaging' => true,
        'post_type' => 'custom_feedback',
        'author' => $author_id,
        'tax_query' => [
            [
                'taxonomy' => 'feedback_taxonomy',
                'field' => 'slug',
                'terms' => $term
            ],
        ],
        'fields' => 'ids'
    ];
    $q = get_posts( $args );

    // Count the amount of posts and add in array
    $count[$term] = count( $q );
}

// Display our text with post counts, just make sure your array keys correspond with your term slugs used
$positive = ( isset( $count['positive'] ) ) ? $count['positive'] : 0;
$negative =( isset( $count['negative'] ) ) ? $count['negative'] : 0;

echo $positive . ' POSITIVE feedback ' . $negative . ' NEGATIVE feedback';