blog_tp6/app/common/model/Article.php

<?php
namespace app\common\model;

class Article extends \think\Model
{
    public function createTimeArchive()
    {
        $create_times = $this->order('create_time desc')->column('create_time');
        $timeList = [];
        foreach($create_times as $value) {
            $yearAndMonth = date("Y-m", $value);
            $timeList[] = $yearAndMonth;
        }
        $timeList = array_unique($timeList);
        
        return $timeList;
    }

    public static function sort($data)
    {
        $article = self::find($data['id']);
        $article->sort = $data['sort'];
        
        return $article->save();
    }
}