book_admin/application/common/model/ChapterEdited.php

<?php
/**
 * Created by PhpStorm.
 * User: Bear
 * Date: 2019/5/14
 * Time: 上午9:40
 */

namespace app\common\model;

use app\common\library\Redis;
use app\main\constants\CacheConstants;
use think\Model;

class ChapterEdited extends Model
{
    protected $pk = 'chapter_id';
    // 表名
    protected $table = 'chapter_edited';

    // 自动写入时间戳字段
    protected $autoWriteTimestamp = 'int';

    // 定义时间戳字段名
    protected $createTime = 'create_time';
    protected $updateTime = 'update_time';

    public function getChapterFromDb($chapter_id)
    {
        $cacheKey = CacheConstants::BOOK_EDITED_CHAPTER . $chapter_id;
        if ($data = Redis::instance()->get($cacheKey)) {
            $decode = json_decode($data, true);
            $decode['content'] = str_replace(['<p>', '</p>'], ['', "\n"], $decode['content']);
            return $decode;
        } else {
            return false;
        }
    }
}