我有一个控制器动作方法，它应该处理两个分割形式。每个表单只处理我的实体Workflow的一些属性。提交第一个表单后，我可以创建并呈现第二个表单而不会出现问题。现在问题是：
提交第二个表单后，第一个表单中设置的所有值的信息都消失了，这意味着当调用submit（或handleRequest这里没有任何区别时）实体对象只能保存以第一种形式设置的属性数据，甚至无法正确解析某些值。
这是Controller（有一些评论）：
public function createWorkflowAction(Request $request, Project $project, Workflow $workflow = null) {
if(!$workflow) {
$workflow = new Workflow($project);
}
$firstFormPart = $this->createForm(WorkflowStatesType::class, $workflow);
// $firstFormPart->handleRequest($request);
$firstFormPart->submit($request->get($firstFormPart->getName()), false);
$secondFormPart = $this->createForm(WorkflowTransitionsType::class, $workflow);
// secondFormPart is created correct with all values after submitting $firstFormPart and calling submit
if($firstFormPart->isSubmitted() && $firstFormPart->isValid()) {
return $this->render('@MyBundle/Workflow/workflow_edit_create_second_part.html.twig', array(
'form' => $secondFormPart->createView(),
));
// This will render correctly with all values submitted in the $firstFormPart
}
$secondFormPart->submit($request->get($secondFormPart->getName()), false);
// $secondFormPart->handleRequest($request);
// HERE IS THE PROBLEM -> After submitting the $secondFormPart all property values set in the $firstFormPart are gone
if($secondFormPart->isSubmitted() && $secondFormPart->isValid()) {
dump($workflow);
die();
}
return $this->render('@MyBundle/Workflow/workflow_edit_create_first_part.html.twig', array(
'form' => $firstFormPart->createView(),
));
}
WorkflowStatesType：
class WorkflowStatesType extends AbstractType {
/**
* @var \Doctrine\ORM\Mapping\ClassMetadata
*/
private $classMetadata;
/**
* WorkflowType constructor.
* @param EntityManager $em
*/
public function __construct(EntityManager $em) {
$this->classMetadata = $em->getClassMetadata(Workflow::class);
}
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder
->setMethod('PATCH')
->add('name', TextType::class, array(
'label' => 'nameTrans',
'attr' => array('maxLength' => $this->classMetadata->getFieldMapping('name')['length']),
))
->add('states', CollectionType::class, array(
'entry_type' => StateType::class,
'allow_add' => true,
'error_bubbling' => false,
'by_reference' => false,
'label' => 'workflowStatesTrans',
))
->add('next', SubmitType::class, array(
'label' => 'nextFormPartTrans',
));
}
public function configureOptions(OptionsResolver $resolver) {
$resolver->setDefaults(array(
'data_class' => Workflow::class,
'translation_domain' => 'My_Bundle',
));
}
}
WorkflowTransitionsType：
class WorkflowTransitionsType extends AbstractType {
/**
* @var Workflow
*/
private $workflow;
/**
* @var Session
*/
private $session;
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options) {
/** @var Workflow $workflow */
$this->workflow = $options['data'];
$builder
->setMethod('PATCH')
->add('initialState', ChoiceType::class, array(
'choices' => $this->workflow->getStates(),
'choice_label' => function($state) {
return ($state && $state instanceof State) ? $state->getStatekey() : 'noVal';
},
'choice_value' => function($state) {
return ($state && $state instanceof State) ? $state->getStatekey() : 'noVal';
},
// This combination of 'expanded' and 'multiple' implements a select box
'expanded' => false,
'multiple' => false,
))
->add('transitions', CollectionType::class, array(
'entry_type' => TransitionType::class,
'allow_add' => true,
'allow_delete' => true,
'error_bubbling' => false,
'by_reference' => false,
'label' => 'transitionsTrans',
'entry_options' => array(
'states' => $this->workflow->getStates(),
),
))
->add('save', SubmitType::class, array(
'label' => 'submitTrans',
));
}
public function configureOptions(OptionsResolver $resolver) {
$resolver->setDefaults(array(
'data_class' => Workflow::class,
'translation_domain' => 'My_Bundle',
));
$resolver->setRequired(array(
'session'
));
}
}
如何在提交$workflow时保留$firstFormPart中提交的$secondFormPart的媒体资源价值？
答案 0 :(得分：1)
由于仅使用secondForm数据再次提交表单，因此您将丢失firstForm数据。
你有三种方法可以保留它们：
1）将firstForm中的数据设置为查询
// Insert that instead of the `return $this->render` for the second form
$url = $this->generateUrl(
$request->attributes->get('_route'),
array_merge(
$request->query->all(),
array('secondForm' => true, 'name' => $workflow->getName(), 'states' => $workflow->getStates()) // change the param
)
);
return $this->redirect($url);
在$secondFormPart = $this->createForm(WorkflowTransitionsType::class, $workflow);之前
将name和states设置回$workflow实体，在此示例中，您可以检查查询变量secondForm以了解是否已提交第一个表单
2）将firstForm中的数据设置为具有隐藏字段的下一个PATCH请求
你必须修改secondForm来处理来自firstForm的数据hidden form type
3）在返回第二个表单
之前，在会话中设置数据首先，您的实体必须实施界面Serializable并声明方法serialize和unserialize
$this->get('session')->set('workflow', $workflow);
方法serialize将用于存储它。
您可以使用方法unserialize
$session = $this->get('session');
$workflow = new Workflow();
$workflow->unserialize($session->get('workflow'));
因为您将整个实体存储到会话中，所以此解决方案会降低应用程序的性能
答案 1 :(得分：0)
您可以使用映射的属性。请参阅mapped property或allow_extra_fields
答案 2 :(得分：0)
如何在提交$ secondFormPart时保存$ firstFormPart中提交的$ workflow的属性值？
所以这是我的（不满意的）解决方案：
我将当前会话作为选项传递给CV_EXTERNAL $secondFormPart类的表单类，并在Controller中调用WorkflowTransitionsType时将其作为参数传递行动方法：
createForm我将会话保存为$secondFormPart = $this->createForm(WorkflowTransitionsType::class, $workflow, array(
'session' => $this->get('session')
));
类中的私有属性，保存当前会话中传递的工作流，并在WorkflowTransitionsType被调用时检索它2.提交表单时的时间：
buildForm