Question

我是Symfony2的新手，并试图使用Lexik Filter套装;我有2个实体（父母培训）以下面定义的nm（多对多）关系链接，我试图按名称过滤父母列表：`tuto \ LexikTestBundle \ Entity \父母：

type: entity
table: Parents
repositoryClass: tuto\LexikTestBundle\Repository\ParentRepository
id:
    id:
        type: integer
        generator:
            strategy: AUTO
fields:
    Firstname:
        type: string
        length: 50
    Lastname:
        type: string
        length: 50
    DOB:
        type: datetime
    Email:
        type: string
        length: 50
manyToMany:
    Trainings:
        targetEntity: Training
        mappedBy: parents`

我遵循使用ver 3.0.8的教程并定义了以下自定义过滤器类型：

namespace tuto\LexikTestBundle\Form\Filter;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;


class MyParentsType extends AbstractType
{
    /**
     * Returns the name of this type.
     *
     * @return string The name of this type
     */
    public function getName()
    {
        return 'parents_filter';
    }

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('Firstname', 'filter_text');
        $builder->add('Lastname', 'filter_text');

    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(
            [
                'csrf_protection' => false,
                'validation_groups' => ['filtering'] // avoid NotBlank() constraint-related message
            ]
        );
    }
}

控制器中的以下FilterAction：

public function indexAction(Request $request)
{


    $em = $this->getDoctrine()->getManager();
    $entities = $em->getRepository('tutoLexikTestBundle:Parents')->findAll();

    $form = $this->testFilterAction($request);

    return $this->render('tutoLexikTestBundle:Parents:index.html.twig', [
        'entities' => $entities,
        'form' => $form,
    ]
    );
}

public function testFilterAction(Request $request)
{
    $form= $this->get('form.factory')->create(new MyParentsType());

    if($request->query->has($form->getName())) {
        // manually bind values from the request
        $form->submit($request->query->get($form->getName()));

        $queryBuilder = $this->get('doctrine.orm.entity_manager')
            ->getRepository('LexikTestBundle:Parents')
            ->createQueryBuilder('e');

        //build the query from the given object
        $this->get('lexik_form_filter.query_builder_updater')->addFilterConditions($form,$queryBuilder);
        var_dump($queryBuilder->getDql());
    }

    return $this->render(
        'tutoLexikTestBundle:Default:testFilter.html.twig',
        ['form'=>$form->createView()]
    );
}

实施的树枝是

＆＃13;

<form method="get" action=".">
  {{ form_rest(form) }}
  <input type="submit" name="submit-filter" value="filter" />
</form>

＆＃13;

我已经通过以下答案，似乎没有相同的错误：

但是我仍然面临 Catchable Fatal Error：传递给Symfony \ Component \ Form \ FormRenderer :: searchAndRenderBlock（）的参数1必须是Symfony \ Component \ Form \ FormView的实例，实例Symfony \ Component \ HttpFoundation \响应任何提示都是受欢迎的。

Answer 1

您应该呈现表单视图而不是表单对象

  public function indexAction(Request $request)
    {
        $em = $this->getDoctrine()->getManager();
        $entities = $em->getRepository('tutoLexikTestBundle:Parents')->findAll();

        $form = $this->testFilterAction($request);

        return $this->render('tutoLexikTestBundle:Parents:index.html.twig', [
            'entities' => $entities,
            'form' => $form->createView(),
        ]
        );
    }

testFilterAction返回一个Response对象而不是表单对象或视图请按以下方式更改您的方法：

注意：您可以在

中嵌套表单模板

tutoLexikTestBundle:Parents:index.html.twig' view

public function testFilterAction(Request $request)
{
    $form= $this->get('form.factory')->create(new MyParentsType());

    if($request->query->has($form->getName())) {
        // manually bind values from the request
        $form->submit($request->query->get($form->getName()));

        $queryBuilder = $this->get('doctrine.orm.entity_manager')
            ->getRepository('LexikTestBundle:Parents')
            ->createQueryBuilder('e');

        //build the query from the given object
        $this->get('lexik_form_filter.query_builder_updater')->addFilterConditions($form,$queryBuilder);
        var_dump($queryBuilder->getDql());
    }

    return $form; // return form object
    );
}

Lexik Filter-：参数1传递给Symfony \ Component \ Form \ FormRenderer :: searchAndRenderBlock（）

1 个答案: