Nsryjdtyk

I have the below code, it works initially with regards to the fact that it displays the products for all taxonomies. However if a product is set to 2 taxonomies then it will display twice on the page as opposed to showing the first instance of the product.

<?php if ( $terms && !is_wp_error( $terms ) ) {

    foreach ( $terms as $term ) {



        $args = array(

            'post_type'  => 'products',

            'posts_per_page' => -1,

            'orderby' => 'menu_order',

            'tax_query' => array(

                array(

                    'taxonomy' => 'product_cat',

                    'field'    => 'slug',

                    'terms'    => $term->slug,

                ),

            ),

            'order' => 'asc',

        );



        runQuery($args);

    }

} ?>

Here is the runQuery function:

<?php $x = 0;

function runQuery($args) {

    global $x;

    $query = new WP_Query( $args );



    if ($query->have_posts()) : while ($query->have_posts()) : $query->the_post();

        $cat_terms = get_the_terms($post->id, 'product_cat');

        $datagroups = '';



        foreach ($cat_terms as $key => $cat) {

            if (count($cat_terms) == ($key + 1)) {

                $datagroups .= '"' . $cat->name . '"';

            } else {

                $datagroups .= '"' . $cat->name . '", ';

            }

        }

    ?>      



    HTML Here that is displayed;



    <?php $x ++;

    endwhile;

    endif;

    wp_reset_postdata();

}?>

I have figured this out, I essentially just had to check the current post in the loop to see if it had already been displayed:

<?php $x = 0;

$displayed = ;



function runQuery($args) {

    global $displayed;

    global $x;

    $query = new WP_Query( $args );



    if ($query->have_posts()) : while ($query->have_posts()) : $query->the_post();

        $cat_terms = get_the_terms($post->id, 'product_cat');

        $datagroups = '';



        if ( in_array( get_the_ID(), $displayed ) ){

            continue;

        }

        // update array with currently displayed post ID

        $displayed = get_the_ID();



        foreach ($cat_terms as $key => $cat) {

            if (count($cat_terms) == ($key + 1)) {

                $datagroups .= '"' . $cat->name . '"';

            } else {

                $datagroups .= '"' . $cat->name . '", ';

            }

        }

    ?>  

Source that may help others: https://wordpress.stackexchange.com/questions/285091/avoid-duplicate-post-from-same-taxonomy