[英]How to use DoctrineModule\Validator\NoObjectExists in edit forms - Zend Framework 2 & Doctrine 2
What is the most effective way to use DoctrineModule\\Validator\\NoObjectExists
validator in a Zend Form that is used for editing also? 在用于编辑的Zend表单中使用
DoctrineModule\\Validator\\NoObjectExists
验证器的最有效方法是什么? Because when I use the same Form for saving edited values, this validates the Object existence and flags form is invalid. 因为当我使用相同的Form保存编辑的值时,这将验证Object存在并且flags表单无效。
Few weeks ago I resolved the same problem using a helper method in my custom filter. 几周前,我在自定义过滤器中使用辅助方法解决了同样的问题。 I am not sure if this is the correct approach but it works.
我不确定这是否是正确的方法,但它的工作原理。
Zend\\InputFilter\\InputFilter
. Zend\\InputFilter\\InputFilter
。 init()
method of filter. init()
方法中添加通用过滤器和验证器。 So, 所以,
<?php
/**
* Baz filter
*/
class BazFilter extends Zend\InputFilter\InputFilter
{
/**
* This method will be triggered automatically when you retrive baz filter via inputfiltermanager.
*/
public function init()
{
// Define your input names, types, validators and filters as arrays
$this->add(array(
'name' => 'code',
'required' => true,
'validators' => array(),
'filters' => array()
));
$this->add( array(...) );
$this->add( array(...) );
// ...
}
/**
* Appends doctrine's noobjectexists validator to validator chain only when required.
*
* @access public
* @param \Doctrine\ORM\EntityRepository $repository
* @return \Zend\InputFilter\InputFilter
*/
public function appendExistenceValidator(\Doctrine\ORM\EntityRepository $repository)
{
$validatorSignature = array(
'name' => 'code',
'validators' => array(
array(
'name' => 'DoctrineModule\Validator\NoObjectExists',
'options' => array(
'object_repository' => $repository,
'fields' => 'code',
'messages' => array( NoObjectExists::ERROR_OBJECT_FOUND => "This object with code already exists in database." )
)
)
)
);
$validator = $this->getFactory()->createInput( $validatorSignature );
$this->add($validator);
return $this;
}
}
Finally, append this inputfilter to your form when editing: 最后,在编辑时将此inputfilter附加到表单:
// $form = your form instance
// $filter = Bazfilter instance
$form->setData($postData)->setInputFilter( $filter );
if( $form->isValid() === false ) {
// ...
}
When creating: 创建时:
// $filter = bazfilter instance
$repository = $entityManager->getRepository('Your\Entity\Name');
$filter->appendExistenceValidator( $repository ); // <-- Notice this line
$form->setData($postData)->setInputFilter( $filter );
if( $form->isValid() === false ) {
// ...
}
You can't use NoObjectExists in an easy way, you should use UniqueObject instead: 您不能以简单的方式使用NoObjectExists,您应该使用UniqueObject:
https://github.com/doctrine/DoctrineModule/blob/ea9e6902fd24906250d01d31561454451a788f86/src/DoctrineModule/Validator/UniqueObject.php https://github.com/doctrine/DoctrineModule/blob/ea9e6902fd24906250d01d31561454451a788f86/src/DoctrineModule/Validator/UniqueObject.php
I tried using DoctrineModule\\Validator\\NoObjectExists in form and it prevents updates which keep the unique field(s) unchanged. 我尝试在表单中使用DoctrineModule \\ Validator \\ NoObjectExists,它会阻止保持唯一字段不变的更新。 As @Tadej mentioned - use UniqueObject.
正如@Tadej所提到的 - 使用UniqueObject。 Here is an example form:
这是一个示例表单:
class ExampleForm extends Form implements InputFilterProviderInterface
{
/**
* @var EntityManager
*/
private $entityManager;
/**
* @var Repository
*/
private $repository;
/**
* ExampleForm constructor.
*
* @param EntityManager $entityManager
* @param Repository $repository
*/
public function __construct(EntityManager $entityManager, Repository $repository)
{
$this->entityManager = $entityManager;
$this->repository = $repository;
$this->add(
[
'type' => Text::class,
'name' => 'name',
'options' => [
'label' => _('Name *')
],
'attributes' => [
'class' => 'form-control',
],
]
);
}
/**
* @return array
*/
public function getInputFilterSpecification()
{
return [
'name' => [
'required' => true,
'filters' => [
],
'validators' => [
[
'name' => UniqueObject::class,
'options' => [
'object_manager' => $this->entityManager,
'object_repository' => $this->repository,
'fields' => ['name'],
'use_context' => true,
'messages' => [
UniqueObject::ERROR_OBJECT_NOT_UNIQUE => "Name '%value%' is already in use",
]
]
]
]
],
];
}
}
Note the use of 'use_context' option - it must be used if field is not primary key. 请注意使用'use_context'选项 - 如果字段不是主键,则必须使用它。 'messages' is optional.
'messages'是可选的。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.