Symfony 2.7.7-Form Collection；注意:未定义的索引:pageId"；

试图生成一个表单，其中它将是内容的集合，但不幸的是，她失去了错误，不知道如何恢复。

给我错误

注意：未定义的索引：pageId

500内部服务器错误-ContextErrorException

页面实体：

class Page
{
    private $id;
    private $name;
    /**
     * @ORM'OneToMany(targetEntity = "PageContent", mappedBy = "pageId")
     */
    private $content;
}

PageContent实体：

class PageContent
{
    private $id;
    /**
     * @ORM'ManyToOne(targetEntity = "Page", inversedBy = "page_content")
     * @ORM'JoinColumn(name = "page_id", referencedColumnName = "id", onDelete = "SET NULL")
     */
    private $page;
    private $name;
}

编辑页面内容类型：

<?php
namespace Eteam'SettingsBundle'Form'Type;
use Symfony'Component'Form'AbstractType;
use Symfony'Component'Form'FormBuilderInterface;
use Symfony'Component'OptionsResolver'OptionsResolver;
class EditPageContentsType extends AbstractType
{
    /**
     * Returns the name of this type.
     *
     * @return string The name of this type
     */
    public function getName()
    {
        return 'EditPageContents';
    }
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('pageContentMap')
            ->add('content', 'collection', array(
                'type' => new PageContentType(),
                'options'  => array(
                    'required'  => false
                ),
                'allow_add' => true
            ));
    }
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Eteam'PageBundle'Entity'Page',
        ));
    }
}

页面内容类型：

<?php
namespace Eteam'SettingsBundle'Form'Type;
use Symfony'Component'Form'AbstractType;
use Symfony'Component'Form'FormBuilderInterface;
use Symfony'Component'OptionsResolver'OptionsResolver;
class PageContentType extends AbstractType
{
    /**
     * Returns the name of this type.
     *
     * @return string The name of this type
     */
    public function getName()
    {
        return 'pageContent';
    }
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('name', 'text', array(
                'label' => 'Test'
            ))
            ->add('content')
            ->add('type')
            ->add('pageId');
    }
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Eteam'PageBundle'Entity'PageContent',
        ));
    }
}

我将感谢你的帮助。

正因为如此，我在这里和Synfony 2中都是初学者，请不要点击否定。谢谢

p.S.

如果你需要更多信息，请告诉我。