sarga/packages/Webkul/Customer/src/Models/Wishlist.php

<?php

namespace Webkul\Customer\Models;

use Illuminate\Database\Eloquent\Model;
use Webkul\Customer\Contracts\Wishlist as WishlistContract;
use Webkul\Product\Models\ProductProxy;

class Wishlist extends Model implements WishlistContract
{
    /**
     * The table associated with the model.
     *
     * @var string
     */
    protected $table = 'wishlist';

    /**
     * The attributes that should be cast.
     *
     * @var array
     */
    protected $casts = [
        'additional' => 'array',
    ];

    /**
     * The attributes that aren't mass assignable.
     *
     * @var array
     */
    protected $guarded = [
        'id',
        'created_at',
        'updated_at',
    ];

    /**
     * The product that belong to the wishlist.
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasOne
     */
    public function product()
    {
        return $this->hasOne(ProductProxy::modelClass(), 'id', 'product_id');
    }
}