<?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;

/**
 * 文章模型
 */
class Articles extends Model
{
    // 启用软删除
    use SoftDelete;
    
    // 数据库表名
    protected $name = 'mete_articles';
    
    // 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',
        'cate'       => 'integer',
        'sort'       => 'integer',
        'status'     => 'integer',
        'is_trans'   => 'integer',
        'views'      => 'integer',
        'likes'      => 'integer',
        'recommend'  => 'integer',
        'top'        => 'integer',
        'publisher'  => 'integer',
        'create_time' => 'datetime',
        'update_time' => 'datetime',
        'publishdate' => 'datetime',
        'delete_time' => 'datetime',
    ];
    
    /**
     * 关联文章分类
     */
    public function category()
    {
        return $this->belongsTo('app\index\model\ArticleCategory', 'cate', 'id', [], 'LEFT')->bind([
            'cate_name' => 'name',
        ]);
    }
    
    /**
     * 关联发布者
     */
    public function publisher()
    {
        return $this->belongsTo('app\index\model\AdminUser', 'publisher', 'id', [], 'LEFT')->bind([
            'publisher_name' => 'name',
        ]);
    }
    
    /**
     * 获取已发布的文章
     */
    public static function published()
    {
        return self::where('status', 2)->where('delete_time', null);
    }
    
    /**
     * 获取推荐文章
     */
    public static function recommended()
    {
        return self::published()->where('recommend', 1);
    }
    
    /**
     * 获取置顶文章
     */
    public static function top()
    {
        return self::published()->where('top', 1);
    }
    
    /**
     * 按分类获取文章
     */
    public static function byCategory($cateId)
    {
        return self::published()->where('cate', $cateId);
    }
    
    /**
     * 按关键词搜索文章
     */
    public static function search($keyword)
    {
        return self::published()->where('title', 'like', '%' . $keyword . '%');
    }
    
    /**
     * 更新阅读量
     */
    public function incrementViews()
    {
        return $this->where('id', $this->id)->inc('views')->update();
    }
    
    /**
     * 更新点赞量
     */
    public function incrementLikes()
    {
        return $this->where('id', $this->id)->inc('likes')->update();
    }
}