<?php

namespace App\Models;

use Dcat\Admin\Traits\HasDateTimeFormatter;
use Dcat\Admin\Traits\ModelTree;
use Illuminate\Database\Eloquent\Model;
use Kalnoy\Nestedset\NodeTrait;

class ArticleCategory extends Model
{
    use NodeTrait;
    use ModelTree;
    use HasDateTimeFormatter;

    protected $table = 'article_categories';

    protected $casts = [
        'is_show' => 'boolean',
        'is_recommend' => 'boolean',
    ];

    // 排序字段名称，默认值为 order
    protected $orderColumn = 'sort';

    // 标题字段名称，默认值为 title
    protected $titleColumn = 'name';

    public function getDefaultParentId()
    {
        return $this->parent_id;
    }

    /**
     * {@inheritdoc}
     */
    protected static function booted()
    {
        parent::updated(function ($articleCategory) {
            if ($articleCategory->wasChanged('is_show')) {//如果改变显示隐藏
                //影响下级分类；
                $articleCategory->descendants()->update(['is_show' => $articleCategory->is_show]);
                //影响上级分类；能力有限无法实现
            }
        });
    }

    public function scopeShow($q)
    {
        return $q->where('is_show', 1);
    }

    public function scopeSort($q)
    {
        return $q->orderBy('is_recommend', 'desc')->orderBy('sort', 'desc')->orderBy('created_at', 'desc');
    }
}