sarga/packages/Webkul/Product/src/Models/ProductReview.php

<?php

namespace Webkul\Product\Models;

use Illuminate\Database\Eloquent\Model;
use Webkul\Customer\Models\CustomerProxy;
use Webkul\Product\Models\Product;
use Webkul\Product\Contracts\ProductReview as ProductReviewContract;

class ProductReview extends Model implements ProductReviewContract
{
    protected $fillable = ['comment', 'title', 'rating', 'status', 'product_id', 'customer_id', 'name'];

    /**
     * Get the product attribute family that owns the product.
     */
    public function customer()
    {
        return $this->belongsTo(CustomerProxy::modelClass());
    }

    /**
     * Get the product.
     */
    public function product()
    {
        return $this->belongsTo(ProductProxy::modelClass());
    }
}