public function delstock($stockInvoiceId)
 {
     if ($stockInvoiceId != null) {
         $stockInvoice = StockInvoice::find($stockInvoiceId);
         $stockDetails = StockDetail::where('invoice_id', '=', $stockInvoice->invoice_id)->get();
         foreach ($stockDetails as $row) {
             $this->getDelete($row->id);
         }
         return Redirect::to('stocks/index');
     }
 }