Feature/woocommerce (#20)

* woocommerce product support

wp-graphql-yoast-seo.php

@@ -7,7 +7,7 @@
  * Author URI:      https://www.ashleyhitchcock.com
  * Text Domain:     wp-graphql-yoast-seo
  * Domain Path:     /languages
- * Version:         3.0.2
+ * Version:         3.1.0
  *
  * @package         WP_Graphql_YOAST_SEO
  */
@@ -22,6 +22,12 @@
   $post_types = \WPGraphQL::get_allowed_post_types();
   $taxonomies = \WPGraphQL::get_allowed_taxonomies();
 
+  // If WooCommerce installed then add these post types and taxonomies
+    if ( class_exists( '\WooCommerce' ) ) {
+      array_push($post_types, 'product');
+      array_push($taxonomies, 'productCategory');
+    }
+
   register_graphql_object_type('SEO', [
     'fields' => [
       'title' => ['type' => 'String'],
@@ -39,6 +45,7 @@
     ]
   ]);
 
+
   if (!empty($post_types) && is_array($post_types)) {
     foreach ($post_types as $post_type) {
       $post_type_object = get_post_type_object($post_type);