<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: Liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace app\model;

use think\Model;
use think\model\concern\SoftDelete;

/**
 * 文章分类模型
 */
class ArticlesCategory extends Model
{
    // 启用软删除
    use SoftDelete;
    
    // 数据库表名
    protected $name = 'mete_articles_category';
    
    // 自动写入时间戳
    protected $autoWriteTimestamp = true;
    
    // 时间戳字段名
    protected $createTime = 'create_time';
    protected $updateTime = 'update_time';
    protected $deleteTime = 'delete_time';
    
    // 字段类型转换
    protected $type = [
        'id'         => 'integer',
        'sort'       => 'integer',
        'status'     => 'integer',
        'create_time' => 'datetime',
        'update_time' => 'datetime',
        'delete_time' => 'datetime',
    ];
    
    /**
     * 关联文章
     */
    public function articles()
    {
        return $this->hasMany('app\index\model\Articles', 'cate', 'id');
    }
    
    /**
     * 获取所有分类
     */
    public static function allCategories()
    {
        return self::where('delete_time', null)->order('sort asc, id asc');
    }
    
    /**
     * 获取启用的分类
     */
    public static function enabled()
    {
        return self::where('status', 1)->where('delete_time', null);
    }
    
    /**
     * 获取分类下的文章数量
     */
    public function articleCount()
    {
        return $this->hasMany('app\index\model\Articles', 'cate', 'id')
            ->where('status', 1)
            ->where('delete_time', null)
            ->count();
    }
}