public function toArray()
 {
     $transformer = $this->getTransformer();
     if ($transformer && !$this->toArrayTransformingInProcess) {
         // this is needed to avoid infinitive loop (Fractal League is also calling toArray)
         $this->toArrayTransformingInProcess = true;
         return TransformerManager::transformDataToArray(new $transformer(), $this);
     }
     return parent::toArray();
 }
 /**
  * Display the specified resource.
  *
  * @param  int  $id
  * @return Response
  */
 public function show($userId, $id)
 {
     if (Auth::user()->id != $userId) {
         abort(403);
     }
     $user = Auth::user();
     $invoice = $user->findInvoiceOrFail($id);
     $pdf = App::make('dompdf.wrapper');
     $pdf->loadHTML($invoice->render(['user' => $user, 'card' => $user->getCard(), 'vendor' => $user->last_name, 'invoiceTransformed' => TransformerManager::transformDataToArray(new InvoiceTransformer($user), $invoice, 'Item')]));
     return $pdf->stream();
 }
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 public function getInvoices()
 {
     if (!$this->stripe_id) {
         return [];
     }
     $invoices = Cache::remember($this->getCacheKeyStripeInvoices(), $this->getCacheExpiresAt(), function () {
         return $this->invoices();
     });
     foreach ($invoices as $key => &$invoice) {
         if (!$invoice->total) {
             // don't show invoices with zero amount
             unset($invoices[$key]);
         }
     }
     return TransformerManager::transformDataToArray(new InvoiceTransformer($this), $invoices);
 }