>更新
我有一个联系表单，我希望如果用户经过身份验证，请为表单中的某些输入提供值。例如电子邮件，电话，姓名...如果他不是这样，就给空值。
symfony.com/doc/2.5/cookbook/form/dynamic_form_modification.html 我在这里找到了一个解决方案，当用户经过身份验证时它运行良好，但是当他没有经过身份验证时，它会给我错误。
Error: Call to a member function getName() on a non-object
表格类型：
<?php
namespace Project'AgenceBundle'Form'Type;
use Symfony'Component'Form'AbstractType;
use Symfony'Component'Form'FormBuilderInterface;
use Symfony'Component'OptionsResolver'OptionsResolverInterface;
use Symfony'Component'Form'FormEvents;
use Symfony'Component'Form'FormEvent;
use Symfony'Component'Security'Core'SecurityContext;
use Doctrine'ORM'EntityRepository;
class AgenceContactType extends AbstractType
{
private $securityContext;
public function __construct(SecurityContext $securityContext)
{
$this->securityContext = $securityContext;
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('telephone', 'text', array(
'required' => false,
'attr' => array('class' =>'input-text full-width'),
))
->add('subject', 'text', array(
'required' => true,
'attr' => array('class' =>'input-text full-width'),
))
->add('message', 'textarea', array(
'required' => true,
'attr' => array('class' =>'input-text full-width', 'rows' =>'6'),
))
;
$user = $this->securityContext->getToken()->getUser();
$builder->addEventListener(
FormEvents::PRE_SET_DATA,
function(FormEvent $event) use ($user) {
$form = $event->getForm();
if ($user) {
$name = $user->getName(); $surname = $user->getSurname(); $email = $user->getEmail();
}
else {
$name = ""; $surname = ""; $email = "";
}
$nameOptions = array(
'required' => true,
'attr' => array('class' =>'input-text full-width','value' =>$name),
);
$form->add('name', 'text', $nameOptions);
$surnameOptions = array(
'required' => true,
'attr' => array('class' =>'input-text full-width','value' =>$surname),
);
$form->add('surname', 'text', $surnameOptions);
$emailOptions = array(
'required' => true,
'attr' => array('class' =>'input-text full-width','value' =>$email),
);
$form->add('email', 'text', $emailOptions);
}
);
}
我找到了一个解决方案：
我认为这不是使用 Events 来做这样的事情，所以我完全更改了代码。我已经测试过它，它工作得很好。这是新代码，你能给我你的意见吗？
<?php
//....
use Symfony'Component'Security'Core'SecurityContext; //SecurityContext
class AgenceContactType extends AbstractType
{
// Inject a service inside of the form
private $securityContext;
public function __construct(SecurityContext $securityContext)
{
$this->securityContext = $securityContext;
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
// Testing if user is AUTHENTICATED
if ($this->securityContext->isGranted('IS_AUTHENTICATED_REMEMBERED')){
$user = $this->securityContext->getToken()->getUser();
$name = $user->getName(); $surname = $user->getSurname(); $email = $user->getEmail();
}
else {
$name = ""; $surname = ""; $email = "";
}
$builder
->add('name', 'text', array(
'required' => true,
'attr' => array('class' =>'input-text full-width','value' =>$name),
))
->add('surname', 'text', array(
'required' => true,
'attr' => array('class' =>'input-text full-width','value' =>$surname),
))
->add('email', 'email', array(
'required' => true,
'attr' => array('class' =>'input-text full-width','value' =>$email),
))
->add('telephone', 'text', array(
'required' => false,
'attr' => array('class' =>'input-text full-width'),
))
->add('subject', 'text', array(
'required' => true,
'attr' => array('class' =>'input-text full-width'),
))
->add('message', 'textarea', array(
'required' => true,
'attr' => array('class' =>'input-text full-width', 'rows' =>'6'),
))
;
}
//..........
}
控制器：
public function viewAction(Agence $agence, $slug, Request $request)
{
// pass $securityContext in the form
$securityContext = $this->container->get('security.context');
$form_contact = $this->createForm(new AgenceContactType($securityContext), $agenceContact);
//......
}