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<?php
/**
* Created by PhpStorm.
* User: rlgyzhcn
* Date: 18-6-1
* Time: 下午2:32
*/
namespace common\components\uploader;
use common\base\Exception;
use yii\base\Component;
use yii\web\UploadedFile;
class Uploader extends Component
{
//文件上传前事件
const EVENT_BEFORE_UPLOAD = 'before_upload';
//文件上传后事件
const EVENT_AFTER_UPLOAD = 'after_upload';
//文件上传对象
public $upload_class = '';
//文件上传方法
public $upload_method = '';
//文件上传参数
public $upload_params = [];
//文件保存目录
public $absolute = '';
//文件base uri
public $baseuri = '';
/**
* 上传文件
* @param $uploaded_file UploadedFile
* @param $savename string 文件保存名
* @throws Exception
* @return bool|string 文件rui or false
*/
public function upload($uploaded_file, $savename = '')
{
if (empty($savename)) {
$savename = md5(date('Y-m-d H:i:s') . $uploaded_file->tempName);
if ($uploaded_file->extension) {
$savename = $savename . '.' . $uploaded_file->extension;
}
}
$this->absolute = rtrim(str_replace('\\', '/', $this->absolute), '/') . '/';
if (empty($this->upload_class)) {
//默认保存到本地
if ($uploaded_file->saveAs($this->absolute . $savename)) {
return rtrim($this->baseuri, '/') . '/' . $savename;
}
throw new Exception(3, '保存文件失败');
} else {
if (class_exists($this->upload_class)) {
if (method_exists($this->upload_class, $this->upload_method)) {
$this->upload_params = array_push($this->upload_params, $savename, $uploaded_file->tempName);
call_user_func_array([$this->upload_class, $this->upload_method], $this->upload_params);
return $this->baseuri . $savename;
}
throw new Exception(2, 'upload method not exists.');
}
throw new Exception(1, 'upload class not exists.');
}
}
}