我有两个字段product_id和user_id。当用户注册产品时隐藏注册按钮。这意味着注册一次。

@if(auth()->user()->orders->where('user_id', $product->id)->exists())
    @if(App\Services\Cart\Cart::count($product) < $product->inventory)
        <form action="{{ route('add.to.cart', $product->id) }}" method="post" id="add-to-cart">
            @csrf
        </form>
        <span onclick="document.getElementById('add-to-cart').submit()" class="cursor-pointer btn btn-lg bg-navy-blue text-white">
            <span>Order</span>
        </span>
    @endif
@endif