changes

db/stack.php

@@ -10,6 +10,7 @@ class Stack extends Entity implements JsonSerializable {
     public $id;
     protected $title;
     protected $boardId;
+    protected $cards = array();
     protected $order;
     public function __construct() {
         $this->addType('id','integer');
@@ -17,12 +18,16 @@ class Stack extends Entity implements JsonSerializable {
         $this->addType('order','integer');
 
     }
+    public function setCards($cards) {
+        $this->cards = $cards;
+    }
     public function jsonSerialize() {
         return [
             'id' => $this->id,
             'title' => $this->title,
             'order' => $this->order,
-            'boardId' => $this->boardId
+            'boardId' => $this->boardId,
+            'cards' => $this->cards,
         ];
     }
 }