Question

我尝试在[Symfony-Book] [1]

的帮助下努力生成基于用户数据的表单

表单出现，但数据不是基于查询构建器，我不知道，我哪里出错了。公式显示实体的所有对象，但不显示在querybuilder中定义的限制

我的表格类型：

<?php

namespace Pso\ProjectBundle\Form;

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 Doctrine\ORM\EntityRepository;


class ProjectuserType extends AbstractType
{

    private $id;

    public function __construct($id)
    {$this->id = $id;}

public function buildForm(FormBuilderInterface $builder, array $options)
{

$id = $this->id;

$builder->addEventListener(
        FormEvents::PRE_SET_DATA,
        function (FormEvent $event) use ($id) {
            $form = $event->getForm();

            $formOptions = array(
                'class' => 'Pso\LogBundle\Entity\User',
                'property' => 'username',
                'multiple' => 'true',
                'expanded' => 'true',
                'query_builder' => function (EntityRepository $er) use($id)  {
                    return $er->createQueryBuilder('x')->FROM('PsoProjectBundle:project', 'p')
                                                       ->JOIN('p.users','u')
                                                       ->WHERE('p.id <>:id')
                                                       ->setParameter('id', $id)
                                                        ;
                },
            );

            $form->add('user', 'entity', $formOptions)
                 ->add('Submit', 'submit', array(
            'attr'=> array (
                'formnovalidate' => 'formnovalidate'
            )
        ));
        }
    );
}

public function getName()
{
    return 'Projectuser';
}


}

更新：

现在我尝试在构建器中更改我的查询，使其看起来：

<?php

namespace Pso\ProjectBundle\Form;

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 Doctrine\ORM\EntityRepository;


class ProjectuserType extends AbstractType
{

private $id;

public function __construct($id)
{
    $this->id = $id;
}

public function buildForm(FormBuilderInterface $builder, array $options)
{

$id = $this->id;

$builder->addEventListener(
        FormEvents::PRE_SET_DATA,
        function (FormEvent $event) use ($id) {
            $form = $event->getForm();

            $formOptions = array(
                'class' => 'Pso\LogBundle\Entity\User',
                'property' => 'username',
                'multiple' => 'true',
                'expanded' => 'true',
                'query_builder' => function (EntityRepository $er) use($id)  {


                    return $er->createQueryBuilder('x')->SELECT('u')
                                                       ->FROM('PsoLogBundle:user', 'u')
                                                       ->JOIN('PsoProjectBundle:project', 'p')
                                                       ->WHERE('p.id <>:id')
                                                       ->setParameter('id', $id)
                                                        ;
                },
            );


            $form->add('user', 'entity', $formOptions)
                 ->add('Submit', 'submit', array(
            'attr'=> array (
                'formnovalidate' => 'formnovalidate'
            )
        ));
        }
    );
}

public function getName()
{
    return 'Projectuser';
}

public function setDefaultOptions(OptionsResolverInterface $resolver)
{
    $resolver->setDefaults(array(
        'data_class'  => 'Pso\LogBundle\Entity\User',
    ));
}

}

在这种情况下，我收到错误

[语法错误]第0行，第79行：错误：预期的Doctrine \ ORM \ Query \ Lexer :: T_WITH，得到'，'

更新：

控制器：

$form = $this->createFormBuilder()
         ->add('projectuser', ['except_id' => $id])
         ->getForm();
    $form->handleRequest($request);
    $build['form'] = $form->createView();   
    return $this->render('PsoProjectBundle:Project:editProject.html.twig', array('projects' =>$projects, 'users' =>$users, 'form' => $form->createView(), ));

ProjectuserType.php：

<?php
class ProjectuserType extends AbstractType
{

public function buildForm(FormBuilderInterface $builder, array $options)
{
\assert(isset($options['except_id']));
$exceptId = $options['except_id'];

$formOptions = [
  'class' => User::class, // PHP5.5
  'property' => 'username',
  'multiple' => 'true',
  'expanded' => 'true',
  'query_builder' => function (EntityRepository $er) use($exceptId)  {
    return $er
      ->createQueryBuilder('u')
      ->join('u.project', 'p')
      ->where('p.id <> :id')
      ->setParameter('id', $exceptId)
    ;
  }
];

$submitOptions = [
  'attr'=> [
    'formnovalidate' => 'formnovalidate'
  ]
];


$builder
  ->add('user', 'entity', $formOptions)
  ->add('Submit', 'submit', $submitOptions)
;
}

public function getName()
{
return 'Projectuser';
  }

  public function setDefaultOptions(OptionsResolverInterface $resolver)
{
  $resolver->setDefaults([
    'data_class'  => FormUser::class, // that line is wrong in your code! it must be a class with attributes 'user' and 'submit', see the "builder->add" calls
]);

$resolver->setRequired(['except_id']);
 }
}

Answer 1

FormTypes应该有default-ctors或service-parameters，因为您可以将它们注册为服务，以便能够创建表单，如：

<?php
// in the controller action (didn't test it)
$form = $this->createFormBuilder($dataObject)
  ->add('projectuser', [
    'except_id' => $yourId
  ])
  ->getForm();

这不是因为它更容易编写，但您不想处理如何创建Type。如果您的类型取决于其他服务，您不想更改您的应用程序，只需编辑services.yml。

因此，请通过options参数传递您的id，并配置ProjectuserType以允许该选项。删除该事件监听器。我构建了最疯狂的形式，但从未需要这些事件。

//编辑试试这个：

<?php
class ProjectuserType extends AbstractType
{

  public function buildForm(FormBuilderInterface $builder, array $options)
  {
    \assert(isset($options['except_id']));
    $exceptId = $options['except_id'];

    $formOptions = [
      'class' => User::class, // PHP5.5
      'property' => 'username',
      'multiple' => 'true',
      'expanded' => 'true',
      'query_builder' => function (EntityRepository $er) use($exceptId)  {
        return $er
          ->createQueryBuilder('u')
          ->join('u.project', 'p')
          ->where('p.id <> :id')
          ->setParameter('id', $exceptId)
        ;
      }
    ];

    $submitOptions = [
      'attr'=> [
        'formnovalidate' => 'formnovalidate'
      ]
    ];


    $builder
      ->add('user', 'entity', $formOptions)
      ->add('Submit', 'submit', $submitOptions)
    ;
}

  public function getName()
  {
    return 'Projectuser';
  }

  public function setDefaultOptions(OptionsResolverInterface $resolver)
  {
    $resolver->setDefaults([
        'data_class'  => FormUser::class, // that line is wrong in your code! it must be a class with attributes 'user' and 'submit', see the "builder->add" calls
    ]);

    $resolver->setRequired(['except_id']);
  }
}

Symfony2.3 - 根据用户数据动态生成表单

1 个答案: