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<?php
// +----------------------------------------------------------------------
// | CRMEB [ CRMEB赋能开发者助力企业发展 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2016~2023 https://www.crmeb.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed CRMEB并不是自由软件未经许可不能去掉CRMEB相关版权
// +----------------------------------------------------------------------
// | Author: CRMEB Team <admin@crmeb.com>
// +----------------------------------------------------------------------
namespace app\services\other;
use app\dao\other\CacheDao;
use app\services\BaseServices;
/**
* 数据库表缓存
* Class CacheServices
* @package app\services\other
* @method delectDeOverdueDbCache() 删除过期缓存
*/
class CacheServices extends BaseServices
{
public function __construct(CacheDao $dao)
{
$this->dao = $dao;
}
/**
* 获取数据缓存
* @param string $key
* @param $default 默认值不存在则写入
* @param int $expire
* @return mixed|null
*/
public function getDbCache(string $key, $default, int $expire = 0)
{
$this->delectDeOverdueDbCache();
$result = $this->dao->value(['key' => $key], 'result');
if ($result) {
return json_decode($result, true);
} else {
if ($default instanceof \Closure) {
// 获取缓存数据
$value = $default();
if ($value) {
$this->setDbCache($key, $value, $expire);
return $value;
}
} else {
$this->setDbCache($key, $default, $expire);
return $default;
}
return null;
}
}
/**
* 设置数据缓存存在则更新,没有则写入
* @param string $key
* @param string | array $result
* @param int $expire
* @return void
*/
public function setDbCache(string $key, $result, $expire = 0)
{
$this->delectDeOverdueDbCache();
$addTime = $expire ? time() + $expire : 0;
if ($this->dao->count(['key' => $key])) {
return $this->dao->update($key, [
'result' => json_encode($result),
'expire_time' => $addTime,
'add_time' => time()
], 'key');
} else {
return $this->dao->save([
'key' => $key,
'result' => json_encode($result),
'expire_time' => $addTime,
'add_time' => time()
]);
}
}
/**
* 删除某个缓存
* @param string $key
* @return false|mixed
*/
public function delectDbCache(string $key = '')
{
if ($key)
return $this->dao->delete($key, 'key');
else
return false;
}
}