80 lines
2.2 KiB
PHP
80 lines
2.2 KiB
PHP
<?php
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/**
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* Created by PhpStorm.
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* User: xing
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* Date: 2018/6/2
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* Time: 22:29
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*/
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namespace App\Traits;
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use Carbon\Carbon;
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use Illuminate\Support\Facades\Redis;
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/**
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* Trait LastActivedAtHelper
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* @property int id
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* @package App\Traits
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*/
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trait LastActivedAtHelper
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{
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// 缓存相关
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protected $hash_prefix = 'larabbs_last_actived_at_';
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protected $field_prefix = 'user_';
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public function recordLastActivedAt()
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{
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// 获取今天的日期
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$date = Carbon::now()->toDateString();
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// Redis 哈希表的命名，如：larabbs_last_actived_at_2017-10-21
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$hash = $this->hash_prefix . $date;
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// 字段名称，如：user_1
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$field = $this->field_prefix . $this->id;
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// 当前时间，如：2017-10-21 08:35:15
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$now = Carbon::now()->toDateTimeString();
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// 数据写入 Redis ，字段已存在会被更新
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Redis::hSet($hash, $field, $now);
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}
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public function syncUserActivedAt()
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{
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// 获取昨天的日期，格式如：2017-10-21
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$yesterday_date = Carbon::yesterday()->toDateString();
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// Redis 哈希表的命名，如：larabbs_last_actived_at_2017-10-21
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$hash = $this->hash_prefix . $yesterday_date;
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// 从 Redis 中获取所有哈希表里的数据
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$dates = Redis::hGetAll($hash);
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// 遍历，并同步到数据库中
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foreach ($dates as $user_id => $actived_at) {
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// 会将 `user_1` 转换为 1
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$user_id = str_replace($this->field_prefix, '', $user_id);
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// 只有当用户存在时才更新到数据库中
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if ($user = $this->find($user_id)) {
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$user->last_active_at = $actived_at;
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$user->save();
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}
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}
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// 以数据库为中心的存储，既已同步，即可删除
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Redis::del($hash);
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}
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public function getLastActivedAt($value)
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{
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$date = Carbon::now()->toDateString();
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// Redis 哈希表的命名，如：larabbs_last_actived_at_2017-10-21
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$hash = $this->hash_prefix . $date;
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$field = $this->field_prefix . $this->id;
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$date = Redis::hGet($hash, $field) ?: $value;
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return $date ? new Carbon($date) : $this->created_at;
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}
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} |