我正在尝试使用实体的ID自定义选择列表的文本。这是因为我希望列表选项特定于经过身份验证的用户。数据库文本值是全名,按城市和州,以及匿名,但我希望它实际显示用户的全名(John Smith),丹佛的用户,CO和匿名。我正在尝试使用视图数据转换器来实现这一点,但没有运气。如果可能的话,我宁愿不使用Javascript来实现这一点。
这是我的主要表单类型:
<?php
namespace Members\MessagesBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Security\Core\SecurityContext;
class MessageType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('viewability', 'viewability_entity', array(
'class' => 'MessagesBundle:Viewability',
'property' => 'name',
'required' => true,
))
->add('body', new MessageBodyType())
;
}
/**
* @param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Members\MessagesBundle\Entity\Message',
));
}
/**
* @return string
*/
public function getName()
{
return 'members_messages_message';
}
}
这是Viewability的自定义表单类型(我想要转换的实体):
<?php
namespace Members\MessagesBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Security\Core\SecurityContext;
use Members\MessagesBundle\Form\DataTransformer\MessageNameTransformer;
class ViewabilityType extends AbstractType
{
private $context;
/**
* @param SecurityContext $context
*/
public function __construct(SecurityContext $context)
{
$this->context = $context;
}
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$transformer = new MessageNameTransformer($this->context);
$builder->addViewTransformer($transformer);
}
/**
* @param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'invalid_message' => 'The selected issue does not exist',
));
}
/**
* @return string
*/
public function getParent()
{
return 'entity';
}
/**
* @return string
*/
public function getName()
{
return 'viewability_entity';
}
}
这是我的服务,它定义了可见性类型:
members.messages.form.type.viewability_entity:
class: Members\MessagesBundle\Form\ViewabilityType
tags:
- { name: form.type, alias: viewability_entity }
arguments: [@security.context]
这是我的可见度实体:
<?php
namespace Members\MessagesBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity()
*/
class Viewability
{
/**
* @ORM\Column(type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\Column(type="string", length=255)
*/
private $name;
public function __construct()
{
}
/**
* @return mixed
*/
public function getName()
{
return $this->name;
}
/**
* @param mixed $name
*/
public function setName($name)
{
$this->name = $name;
}
/**
* @return mixed
*/
public function getId()
{
return $this->id;
}
/**
* @param mixed $id
*/
public function setId($id)
{
$this->id = $id;
}
}
最后,这是我的数据转换器:
<?php
namespace Members\MessagesBundle\Form\DataTransformer;
use Symfony\Component\Form\DataTransformerInterface;
use Members\MessagesBundle\Entity\Viewability;
use Symfony\Component\Security\Core\SecurityContext;
class MessageNameTransformer implements DataTransformerInterface
{
private $user;
/**
* @param SecurityContext $context
*/
public function __construct(SecurityContext $context)
{
$this->user = $context->getToken()->getUser();
}
/**
* @param Viewability|null $viewability
* @return string
*/
public function transform($viewability)
{
if (null === $viewability) {
return '';
}
if($viewability === 'Full Name')
return sprintf('%s %s', $this->user->getInfo()->getFirstName(), $this->user->getInfo()->getLastName());
if($viewability === 2)
return sprintf('Lawyer in %s, %s', $this->user->getInfo()->getAddress()->getCity(), $this->user->getInfo()->getAddress()->getState());
if($viewability === 3)
return 'Anonymous';
}
/**
* @param Viewability $viewability
* @return Viewability
*/
public function reverseTransform($viewability)
{
return $viewability;
}
}
传递给transform()的数据似乎总是为null或“”(空字符串)。
感谢您的帮助。
答案 0 :(得分:0)
所以我最终采取了不同的方法来解决这个问题。最初我试图转换来自实体的数据。幸运的是,这个实体毕竟不需要是一个数据库实体,而且一个简单的选择类型就足够了。这不能解决转换实体列表的具体问题,但它允许我自定义下拉列表值。
删除了可见性实体,并将Message实体中的关系更改为整数字段。
我的主要类型现在如下:
class MessageType extends AbstractType
{
private $user;
public function __construct($user)
{
$this->user = $user;
}
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('body', new MessageBodyType())
->add('viewability', 'choice', array(
'choices' => array(
1 => $user->getFirstName(),
2 => $user->getAddress()->getCity(),
3 => 'Anonymous',
),
'multiple' => false,
'label' => 'Send Message As',
'data' => 0,
))
;
}
/**
* @param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Members\MessagesBundle\Entity\Message',
));
}
/**
* @return string
*/
public function getName()
{
return 'members_messages_message';
}
}