public function toBag($id)
 {
     $product = Bag::where('productId', $id)->first();
     $product->inBag = 1;
     $product->save();
     return redirect()->action('HeartBagController@index');
 }
 public function checkout()
 {
     foreach (Auth::user()->bags->where('inBag', 1) as $bag) {
         $product = Product::find($bag->productId);
         $product->paid = 1;
         $product->save();
         $bagNr = Bag::where('productId', $product->id)->first();
         Auth::user()->bags()->detach($bagNr->id);
     }
     return redirect()->action('BagController@index');
 }