功能名称为store，在刀片视图中也是如此。一个用户可以对多个产品进行评级，但用户必须先登录才能访问评级

这是刀片代码

<h2>{{ $product->name }}</h2>
<p>{{ $product->description }}</p>
<h3>Reviews</h3>
<ul>
    @foreach ($product->reviews as $review)
        <li>{{ $review->review }} - {{ $review->rating }} stars</li>
    @endforeach
</ul>
<h3>Add a Review</h3>
<form method="POST" action="/products/{{ $product->id }}/reviews">
    @csrf
    <div>
        <label for="review">Review</label>
        <textarea name="review" id="review">{{ old('review') }}</textarea>
        @error('review')
            <div>{{ $message }}</div>
        @enderror
    </div>
    <div>
        <label for="rating">Rating</label>
        <input type="number" name="rating" id="rating" min="1" max="5" value="{{ old('rating') }}">
        @error('rating')
            <div>{{ $message }}</div>
        @enderror
    </div>
    <button type="submit">Submit Review</button>
</form>

控制器。用户可以为单个产品评分1-5

public function store(Product $product)
    {
        $data = request()->validate([
            'review' => 'required|string',
            'rating' => 'required|integer|min:1|max:5',
        ]);
        $review = new Review($data);
        $review->user_id = auth()->user()->id;
        $product->reviews()->save($review);
        return back();

路线

Route::post('/products/{product}/reviews', [HomeController::class, 'store']);
Route::middleware(['auth'])->group(function () {
    Route::post('/products/{product}/reviews', [HomeController::class, 'store']);

数据库

$table->unsignedBigInteger('product_id');
            $table->unsignedBigInteger('user_id');
            $table->text('review');
            $table->integer('rating');
            $table->timestamps();
            $table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');
            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');