Symfony 2.7.7 - Form Collection "Notice: Undefined index: pageId" - php

Question

Trying to generate a form in which it will be a collection of Contents, but unfortunately bereave her mistake and do not know how we recover.
Gives me the error
Notice: Undefined index: pageId
500 Internal Server Error - ContextErrorException
Page Entity:
class Page
{
private $id;
private $name;
/**
* #ORM\OneToMany(targetEntity = "PageContent", mappedBy = "pageId")
*/
private $content;
}
PageContent Entity:
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;
}
EditPageContentsType :
<?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',
));
}
}
PageContentType:
<?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',
));
}
}
I will be grateful for your help.
Because of this I'm a beginner here and in Synfony 2, please do not click negatives. Thanks.
P.S.
If you need more information please let me know.

Answer 1

Firstly your annotations are wrong.
Page should be:
* #ORM\OneToMany(targetEntity = "PageContent", mappedBy = "page")
PageContent should be:
* #ORM\ManyToOne(targetEntity = "Page", inversedBy = "content")
mappedBy and inversedBy by are directly related to the property names of the object for the relations and have to be the same.
Secondly as PageContent is a child of Page, you don't need pageId in your PageContentType. This is a better way to do things.
In EditPageContentsType, add the option 'by_reference' => false see here for why
Then change your addContent() method in Page
public function addContent(PageContent $pageContent)
{
$pageContent->setPage($this);
$this->content->add($pageContent);
}
Similar to the addTag example down a little way in this document
This allows you to easily associate Page with PageContent entities. I recommend having a good read of the forms documentation as you will see this sort of thing a lot.