public function add($data)
{
$item = new CartOrderItems();
$item->setAttributes($data);
if ($item->validate()) {
foreach ($this->items as $it) {
if ($it->item_id == $item->item_id && $it->relation == $item->relation) {
$it->count += $item->count;
return true;
}
}
$this->items[] = $item;
return true;
}
return false;
}
public function getSum()
{
return CartOrderItems::find()->where(['order_id' => $this->id])->sum('price*count');
}
