在我的示例中,我有四个实体要用于博客平台:所有者 发布 用户 位置< / KBD>
我正在尝试创建一个管理表单,我可以从下拉菜单中选择所有者,这将刷新表单onChange
以填充帖子的下拉菜单< / KBD>。
当选择 Post 时,表格将再次刷新,并附上与该帖子相关联的表单字段 Users 和 Locations 。然后我可以:
我没有包含 Location 实体,并且没有包含命名空间/ include语句,因为它们会影响我在控制器/ Formtypes中如何编写此类管理页面的主要问题(我的尝试如下):
/**
* @Route("/adminposts", name="admin_posts")
*/
public function updatePostsAction(Request $request)
{
$user = new User();
$form = $this->createForm(new UserType(), $user);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($owner);
$em->persist($post);
$em->persist($user);
$em->persist($location);
$em->flush();
return $this->redirectToRoute('homepage');
}
return $this->render('AppBundle:Default:adminupdate.post.html.twig', array(
'form' => $form->createView(),
));
}
class UserType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('owner','entity',array(
'class'=>'AppBundle:Owner',
'choice_label'=>'username',
'query_builder'=>function(EntityRepository $er) {
return $er->createQueryBuilder('d')
->orderBy('d.username','ASC');
}))
->add('post','entity',array(
'class'=>'AppBundle:Post',
'choice_label'=>'posttext',
'query_builder'=>function(EntityRepository $er) {
return $er->createQueryBuilder('d')
->orderBy('d.postdate','ASC');
}))
->add('Firstname')
->add('Surname')
->add('DOB')
->getForm();
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Users',
));
}
public function getName()
{
return 'user';
}
}
答案 0 :(得分:0)
好的,也许您可以在这里查看:Symfony2: Change choices with ajax and validation或按照我的方法:
在您的UserType中:
pytest.yield_fixture
我假设您知道如何在jQuery(我用它来使用它)和ajax调用中创建onChange事件。
仅提醒,在您看来:
class UserType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('owner','entity',array(
'class'=>'AppBundle:Owner',
'choice_label'=>'username',
'query_builder'=>function(EntityRepository $er) {
return $er->createQueryBuilder('o')
->orderBy('o.username','ASC');
}))
->add('Firstname')
->add('Surname')
->add('DOB');
// Add listeners for Post field
$builder->addEventListener(FormEvents::PRE_SET_DATA, array($this, 'onPreSetData'));
$builder->addEventListener(FormEvents::PRE_SUBMIT, array($this, 'onPreSubmit'));
}
protected function addElements(FormInterface $form, $owner = null)
{
if($owner){
$form->add('post','entity',array(
'class'=>'AppBundle:Post',
'choice_label'=>'posttext',
'query_builder'=>function(EntityRepository $er, $owner) {
return $er->createQueryBuilder('p')
->join('p.owner', 'o')
->where('o.id = :ownerID')
->setParameter('ownerID', $owner->getID() )
->orderBy('d.postdate','ASC');
}));
}
else{
$form->add('post','choice',array(
'choice_label'=>'posttext',
'empty_value' => '-- Choose --',
'choices' => array())
);
}
}
public function onPreSubmit(FormEvent $event)
{
$form = $event->getForm();
$data = $event->getData();
$this->addElements($form, $data->getOwner());
}
public function onPreSetData(FormEvent $event)
{
/** @var User user */
$user = $event->getData();
$form = $event->getForm();
$this->addElements($form, $user->getOwner());
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Users',
));
}
public function getName()
{
return 'user';
}
}
你的Ajax脚本:
{{ form_row(
form.owner,
{
'attr': {
'data-owner-id': ""~form.owner.vars.id,
'class': "change-posts-per-owner",
}
}
) }}
{{ form_row(form.post) }}
{{ form_row(form.firstname) }}
{{ form_row(form.surname) }}
{{ form_row(form.DOB) }}
您还可以使用 $(document).on('change', 'select .change-posts-per-owner', function(){
var ownerID = $(this).data("owner-id");
$.ajax({
url: your_url,
type: "GET", //or POST
data: 'ownerID='+ownerID,
dataType: 'JSON', //or html or whatever you want
success:function(data) {
//Replace <option element in your select element for post list considering your dataType (type of response)
}
});
}
或$.post()
代替显式方法$.get()
我建议您使用FOSJSRoutingBundle以$.ajax();
方法指示您的网址。