Problem with type plugin and custom taxonomies

Function

function get_taxonomy_names($post_id, $term_name) {
$collections = wp_get_post_terms($post_id, $term_name, array("fields" = "all"));
$count       = count($collections);
$return = '';
if($count  0) {
    $i = 1;
    foreach($collections as $collection) {
        $return .= $collection-name;
        if($count  1) {
            if($count == $i) {
                continue;
            }
            $return .= ', ';
        }
        $i++;
    }
}
return $return;

}

Product template

 $products_category = get_categories(array('taxonomy'='category-products'));?


    div class="sorting-block"
        div class="content-xs"
            ul class="sorting-nav sorting-nav-v1 text-center"
            ? foreach ( $products_category as $collection ): ?
                li class="filter" data-filter="category"?=$collection-name;?/li
            ?endforeach;?    
            /ul
        /div


    ? $products = get_posts( array('post_type' = 'products', 'posts_per_page' = 400,) ); ?

    ? foreach ( $products as $post ) : setup_postdata( $post ); ? 
    ? $pic               = types_render_field("product-pic", array("url"="true")); ?
    ? $serial_number     = types_render_field("serial-number", array("url"="true")); ? 

        ul class="row sorting-grid"
            li class="col-md-3 col-sm-6 col-xs-12 mix" data-cat="category"
                a href="#"
                    img class="img-responsive" src="?=$pic;?" alt=""
                    span class="sorting-cover"
                        span? the_title(); ?/span
                        p/p
                    /span
                /a
            /li     
        /ul
    ?endforeach;?

Problem

I have product category which I did by types plugin 'custom taxonomies'. I want to show products by category when somebody clicks the category name that should show just that products which registered to for example "acril" category. Problem is when I am debugging products it is not showing category. So I should connect both foreach circle if you paid attention I have data-filter in circle 1 and data-cat in the second circle with value 'category'. that should be dynamic and what can be key for that connection if post not showing the any keys.