:sparkles: wp_query for materials

plugins/cia-endpoints/includes/class.make-sortby.php

             $args['orderby'] = 'ends';
         }
         
+        if($this->post_type == 'artist') {
+            $tax_id_array = explode( ',', $params['materials'] );
+            // 3 clay
+            // 4 fiber
+            // 5 glass
+            // 6 metals
+            // 7 paper
+            // 8 wood
+            $args['tax_query'] = array(
+                [
+                    'taxonomy' => 'material',
+                    'field'    => 'term_id',
+                    'terms'    => $tax_id_array
+                ]
+            );
+        }
+        
         return $args;
     }
     /**
     }
 
     public function by_material( $request ) {
-        global $wpdb;
-        // !: Make this a real query
-        $res = $wpdb->get_results($wpdb->prepare(
-            "SELECT * FROM wp_posts
-            WHERE post_type = %s
-            AND post_status = 'publish'",
-            $this->post_type
-        ));
+        $q = new WP_Query($this->make_args($request, null));
+        // $args['max'] $q->max_num_pages;
+        $found_posts = $q->get_posts();
         wp_reset_postdata();
 
-        return new WP_REST_Response( $this->prepare_items_for_reponse($res), 200 );
+        return new WP_REST_Response( $this->prepare_items_for_reponse($found_posts), 200 );
+
     }
     
     public function by_past( $request ) {