private function deletePurchaselitemsByPurchase($orderid){
$conditions = array('purchase_id=?', $orderid);
$result = \Purchaseproduct::find('all', array('conditions' => $conditions));
$stck = 0;
foreach($result as $data){
$stck = $data->quantity;
$prdid = $data->product_id;
$data->delete();
if($this->enablestock){
$prd = \Product::find($prdid);
if($prd){
$newstock= $prd->stock - $stck;
$attributes = array(
"stock" => $newstock,
"stockvalue" => $newstock * $prd->unit_cp);
$prd->update_attributes($attributes);
}
}
}
}
