ZF2 文件验证器 return 所有消息但只需要触发

Question

我只想收到触发消息，但我收到了所有注册消息。

$inputFilter = $factory->createInput(array(
        'name'       => 'image',
        'required'   => true,
        'validators' => array(
            array(
                'name'    => '\Zend\Validator\File\IsImage',
                'options' => ['message' => 'File has to be valid image.']
            ),
            array(
                'name'    => '\Zend\Validator\File\Extension',
                'options' => ['extension' => 'png,jpg,jpeg', 'message' => 'Image extension has to be png,jpg or jpeg.'],
            ),
            array(
                'name'    => '\Zend\Validator\File\Size',
                'options' => ['max' => '2MB', 'message' => 'Maximum file size for image is 2MB.'],
            ),
        ),
    ));

稍后在控制器中：

if(!$filter->isValid()){
    var_dump($filter->getMessages());
}

如果我尝试上传 5MB 大小的图片，我会收到所有消息：

array(
  'image' => array(
    'fileIsImageNotReadable' => 'File has to be valid image'
    'fileExtensionNotFound' => 'Image extension has to be png,jpg or jpeg'
    'fileSizeNotFound' => 'Maximum file size for image is 2MB'  
  )
);

但预计只有 "Maximum file size for image is 2MB"。

有什么方法可以return只触发消息吗？这应该是 getMessages() 方法的默认行为吗？

Answer 1

一个可能的解决方案是使用 Validator Chains。

In some cases it makes sense to have a validator break the chain if its validation process fails. Zend\Validator\ValidatorChain supports such use cases with the second parameter to the attach() method. By setting $breakChainOnFailure to TRUE, the added validator will break the chain execution upon failure, which avoids running any other validations that are determined to be unnecessary or inappropriate for the situation.

这样，验证会在第一次失败时停止，您只会在验证失败时收到消息。您还可以设置优先级，以便您的验证器将按特定顺序应用。文档中给出的这个示例使用方法 attach。这不是您真正需要的。

在您的情况下，您可以在验证器规范中使用 break_chain_on_failure 键并将值设置为 true。像这样：

$inputFilter = $factory->createInput(array(
        'name'       => 'image',
        'required'   => true,
        'validators' => array(
            array(
                'name'    => '\Zend\Validator\File\IsImage',
                'options' => ['message' => 'File has to be valid image.']
                'break_chain_on_failure' => true,
            ),
        ),
));

ZF2 文件验证器 return 所有消息但只需要触发

ZF2 File validators return all messages but need only triggered

php

validation

zend-framework2

extract-error-message