Question

我正在尝试在一个Form类型中包含一个Form类型由于某种原因管理器没有包含在构造函数中可能它是一个简单的拼写错误但是现在我看不到错误通过symfony2（2.7）的coookbook的例子

这是FormType FloorType

inotify-tools

需要注入经理的服务

namespace George\FloorBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use George\FloorBundle\Form\DataTransformer\ObjectToNumberTransformer;
use Doctrine\Common\Persistence\ObjectManager;

class FloorType extends AbstractType
{
private $manager;

public function __construct(ObjectManager $manager)
{
    $this->manager = $manager;
}
/**
 * @param FormBuilderInterface $builder
 * @param array $options
 */
public function buildForm(FormBuilderInterface $builder, array $options)
{

    $builder
        ->add('translations', 'a2lix_translations',array(
            'required_locales' => array('bg','en')
        ))
    ->add('object', 'hidden', array(
        // validation message if the data transformer fails
       'invalid_message' => 'That is not a valid issue number',
    ));

    $builder ->get('object')->addModelTransformer(new ObjectToNumberTransformer($this->manager));
}

/**
 * @param OptionsResolverInterface $resolver
 */
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'George\FloorBundle\Entity\Floor'
    ));
}

/**
 * @return string
 */
public function getName()
{
    return 'george_floorbundle_floor';
}
}

使用管理器的变压器（但我没有错误，我只想做一个案例的完整示例）

<?xml version="1.0" encoding="UTF-8" ?>
<container xmlns="http://symfony.com/schema/dic/services"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<services>
    <service id="app.form.type.floor" class="George\FloorBundle\Form\Type\FloorType">
        <tag name="form.type" />
        <argument type="service" id="doctrine.orm.entity_manager"></argument>
    </service>
</services>

我需要加载FloorType的控制器方法：

<?php
namespace George\FloorBundle\Form\DataTransformer;

use George\ObjectsBundle\Entity\Object;
use Doctrine\Common\Persistence\ObjectManager;
use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\Exception\TransformationFailedException;

class ObjectToNumberTransformer implements DataTransformerInterface
{
private $manager;

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

/**
 * Transforms an object (issue) to a string (number).
 *
 * @param  Object|null $issue
 * @return string
 */
public function transform($object)
{

    if (null === $object) {
        return '';
    }

    return $object->getId();
}

/**
 * Transforms a string (number) to an object (issue).
 *
 * @return Object|null
 * @throws TransformationFailedException if object (issue) is not found.
 */
public function reverseTransform($objectNumber)
{
    // no issue number? It's optional, so that's ok
    if (!$objectNumber) {
        return;
    }

    $object= $this->manager
        ->getRepository('ObjectsBundle:Object')
        // query for the issue with this id
        ->find($objectNumber)
    ;

    if (null === $object) {
        // causes a validation error
        // this message is not shown to the user
        // see the invalid_message option
        throw new TransformationFailedException(sprintf(
            'An issue with number "%s" does not exist!',
            $objectNumber
        ));
    }

    return $object;
}
}

所以当我删除经理时：

  private function createEditForm(Floor $entity)
{
    $manager = $this->getDoctrine()->getManager();
    $form = $this->createForm(new FloorType($manager), $entity, array(
        'action' => $this->generateUrl('admin_floor_update', array('id' => $entity->getId())),
        'method' => 'PUT',
    ));

    $form->add('submit', 'submit', array('label' => 'Update'));

    return $form;
}

我收到了一个很大的错误：

捕获致命错误：传递给George \ FloorBundle \ Form \ FloorType :: __ construct（）的参数1必须实现接口Doctrine \ Common \ Persistence \ ObjectManager，没有给定，在D：\ work \ infinity3 \ src \ George \中调用第171行的FloorBundle \ Controller \ FloorController.php并定义了

我理解为这样 - 服务没有设法注入经理

在本地捆绑中调试服务

我已调试该服务并列出但我无法管理它以将Floor中的经理包含在这里我错过了什么？

修改

所以这是服务xml问题我没有包含别名属性感谢@Matteo回答我编辑代码它就像一个魅力！谢谢@Matteo！

以下是修改服务

$manager = $this->getDoctrine()->getManager();

我在哪里创建表单：

 <services>
    <service id="app.form.type.floor" class="George\FloorBundle\Form\FloorType">
        <tag name="form.type" alias="george_floorbundle_floor" />
        <argument type="service" id="doctrine.orm.entity_manager"></argument>
    </service>
</services>

Answer 1

您应该在tags部分中定义别名，如下所示：

service.xml中

<services>
    <service id="app.form.type.floor" class="George\FloorBundle\Form\Type\FloorType">
        <tag name="form.type" alias="george_floorbundle_floor" />
        <argument type="service" id="doctrine.orm.entity_manager"></argument>
    </service>
</services>

并在表单创建中引用参考，如下所示：

$form = $this->createForm('george_floorbundle_floor', $entity, array(
        'action' => $this->generateUrl('admin_floor_update', array('id' => $entity->getId())),
        'method' => 'PUT',
    ));

希望这个帮助

服务依赖注入不包括manager symfony2

1 个答案: