documents fix

backend/app/plugins/wiaas/includes/class-wiaas-cart.php

@@ -740,6 +740,7 @@ class Wiaas_Cart {
 
 		$documents_ids = array();
 
+		// Retrieve all document ids attached to cart content
 		foreach ($items as $key => $item) {
 			if (!isset($item['_wiaas_standard_package'])) {
 				continue;
@@ -757,16 +758,19 @@ class Wiaas_Cart {
 			}
 		}
 
+		// Retrieve all customer visible template documents attached to cart content
 		$q = new WP_Query();
 		$retrieved_items = $q->query(array(
 			'post_status' => 'publish',
 			'post_type' => 'wiaas_doc',
 			'post__in' => array_keys($documents_ids),
+			'meta_key' => '_wiaas_doc_visible',
+			'meta_value' => 'yes', // visible to customer
 			'tax_query' => array(
 				array(
 					'taxonomy' => 'wiaas_doc_type',
 					'field'    => 'slug',
-					'terms'    => array_keys(self::$cart_doc_types),
+					'terms'    => array_keys(self::$cart_doc_types), // templates only
 				)
 			)
 		));