public function store(Request $request)
 {
     $token = $request->get('_token');
     $quant = $request->get('quantity');
     $product_id = $request->get('product_id');
     $price = Product::find($product_id)->price;
     $cart = Cart::create(['product_id' => $product_id, 'token' => $token, 'price' => $price, 'quantity' => $quant]);
     $cart_id = $cart->id;
     Command_unf::create(['product_id' => $product_id, 'cart_id' => $cart_id, 'token' => $token, 'price' => $price, 'quantity' => $quant]);
     return redirect('/')->with(['cart-store' => 'Le produit a été ajouté à votre panier !', 'alert' => 'success']);
 }
 public function command_unfHistoric()
 {
     $command_unfs = Command_unf::all();
     return view('admin.command_unf', compact('command_unfs'));
 }