Question

我想做上传文件的简单操作（多个）。我从客户端获得的附件如：

var data = new FormData();
_.some(this.collection.models, function(model, index) {
      data.append('file_'+index, model.get('_FILE'));
}

在服务器端，我尝试通过Http适配器执行验证过程。假设附加了一个文件：

$_files = $this->params()->fromFiles();

print_r($_files[0]);

$extension = new \Zend\Validator\File\Extension('jpeg,jpg');
$adapter = new \Zend\File\Transfer\Adapter\Http(); 

$adapter->addValidator($extension);

if($extension->isValid($_files[0]))
{
    echo 'valid';
} else {
    $messages = $extension->getMessages();
    echo implode("\n", $messages);
}

if($adapter->isValid($_files[0])) 
{
    echo 'valid';
} else {
    $messages = $adapter->getMessages();
    echo implode("\n", $messages);
}

...和方法$ adapter-＆gt; isValid（）无效。但$ extension-＆gt; isValid（）工作正常。

Array ( 
    [name] => untitled_test.png 
    [type] => image/png 
    [tmp_name] => /tmp/phpRPlV8G 
    [error] => 0 [size] => 398 
)

Answer 1

对于文件上传，有一个特殊的Zend\Validator\File\UploadFile验证器。我认为你应该考虑使用这个课程。您可以在 here in the documentation 找到更多相关信息。

它会自动用在FileInput类中，这是$_FILES数组中上传文件的特殊输入类型。

详细了解如何使用/实施此 in the official ZF2 documentation here 。

Answer 2

当我创建\ Zend \ File \ Transfer \ Adapter \ Http（）的实例时，类构造函数默认加载所有发布的文件（$ _FILES）。这是我的完整解决方案。也许有人会有用。

/**
 * Upload multiple images
 * 
 * @return JsonModel
 */
public function imageAction()
{
    $request = $this->getRequest();
    $uploadStatus = [];

    if ($request->isXmlHttpRequest()) 
    {
        $models = $this->params()->fromPost('models');

        $adapter = new \Zend\File\Transfer\Adapter\Http();

        $size       = new \Zend\Validator\File\Size(['min' => '100B', 'max' => '10MB','useByteString' => true]);
        $extension  = new \Zend\Validator\File\Extension(['jpg','gif','png','jpeg'], true);

        if (extension_loaded('fileinfo')) 
        {
            $adapter->setValidators([new \Zend\Validator\File\IsImage()]);
        }

        $adapter->setValidators([$size, $extension]);

        foreach($models as $index => $rawModel)
        {
            /**
             * Parse JSON model
             */
            $model = json_decode($rawModel,true);
            /**
             * Get full filename
             */
            $_file = $adapter->getFileInfo('file_'.$model['index'])['file_'.$model['index']]['name'];

            if (!$adapter->isValid($_file)) 
            {
                foreach ($adapter->getMessages() as $key => $msg) 
                {
                    $uploadStatus['errorFiles'][] = $_file.' '.strtolower($msg);
                }
            }

            $filename = $this->appPlugin()->generateFilename($model['name']);
            $filepath = $this->appPlugin()->getImageDestination();

            $adapter->addFilter('File\Rename', ['target' => $filepath.$filename, 'overwrite' => true]);

            if (!$adapter->receive($_file)) 
            {
                $uploadStatus["errorFiles"][] = $_file.' was not uploaded';
            } else {
                $uploadStatus["successFiles"][] = $_file.' was successfully uploaded';
            }
        }
    }

    return new JsonModel(['uploadStatus'=>$uploadStatus]);
}

完整示例在这里http://learnzf2.sitrun-tech.com/learn-zf2-ajax-image-gallery。谢谢社区。

ZF2：附件的验证

2 个答案: