<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class ProductPart extends Model
{
    use Concerns\HasShowable;
    use HasFactory;

    /**
     * @var array
     */
    protected $attributes = [
        'is_show' => false,
    ];

    /**
     * @var array
     */
    protected $fillable = [
        'key',
        'name',
        'is_show',
    ];

    /**
     * @var array
     */
    protected $casts = [
        'is_show' => 'bool',
    ];

    /**
     * 属于此分区的商品
     */
    public function skus()
    {
        return $this->belongsToMany(ProductSku::class, ProductPartSku::class, 'part_id', 'sku_id');
    }
}