Symfony2: One To Many Relationship - php

Question

Experiencing some serious problems in getting a OneToMany relationship to work. The error happens when trying to add "Children" to Beauties in Sonata Admin.
Using:
Symfony2
Doctrine
Sonata Admin
Been trying to follow the guide at: http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/association-mapping.html#one-to-many-bidirectional
and
http://sonata-project.org/bundles/doctrine-orm-admin/2-2/doc/reference/form_field_definition.html
Error:
"CRITICAL - Uncaught PHP Exception
Doctrine\ORM\ORMInvalidArgumentException: "A new entity was found
through the relationship
'Beautify\BeautiesBundle\Entity\Beauty#children' that was not
configured to cascade persist operations for entity:
Beautify\BeautiesBundle\Entity\Children#000000000eff91d5000000017f8ca53b.
To solve this issue: Either explicitly call EntityManager#persist() on
this unknown entity or configure cascade persist this association in
the mapping for example #ManyToOne(..,cascade={"persist"}). If you
cannot find out which entity causes the problem implement
'Beautify\BeautiesBundle\Entity\Children#__toString()' to get a clue."
at
/Users/gmf/symfony/vendor/doctrine/orm/lib/Doctrine/ORM/ORMInvalidArgumentException.php
line 91 "
.
.
BeautyAdmin.php
<?php
// src/Beautify/BeautiesBundle/Admin/BeautyAdmin.php
namespace Beautify\BeautiesBundle\Admin;
use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Form\FormMapper;
use Knp\Menu\ItemInterface as MenuItemInterface;
use Beautify\CategoryBundle\Entity\Category;
use Beautify\CategoryBundle\Entity\Children;
class BeautyAdmin extends Admin
{
// Fields to be shown on create/edit forms
protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->with('General')
->add('name', 'text', array('label' => 'Name'))
->add('content', 'textarea', array('label' => 'Content'))
->add('imageFile', 'file', array('label' => 'Image file', 'required' => false))
->end()
->with('Category')
->add('category', 'sonata_type_model', array('expanded' => true))
->end()
->with('Children')
->add('children', 'sonata_type_collection', array(), array(
'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position'
))
->end()
;
}
// Fields to be shown on filter forms
protected function configureDatagridFilters(DatagridMapper $datagridMapper)
{
$datagridMapper
->add('name')
->add('content')
->add('category')
;
}
// Fields to be shown on lists
protected function configureListFields(ListMapper $listMapper)
{
$listMapper
->addIdentifier('name')
->add('content')
->add('category')
->add('imageName')
->add('_action', 'actions', array(
'actions' => array(
'show' => array(),
'edit' => array(),
'delete' => array(),
)
))
;
}
}
Beauty.php Entity
<?php
// src/Beautify/BeautiesBundle/Entity/Beauty.php
namespace Beautify\BeautiesBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\HttpFoundation\File\File;
use Vich\UploaderBundle\Mapping\Annotation as Vich;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #ORM\Entity
* #ORM\Table(name="beauties")
* #ORM\HasLifecycleCallbacks
* #Vich\Uploadable
*/
class Beauty
{
/**
* #ORM\OneToMany(targetEntity="Children", mappedBy="beauties")
**/
private $children;
public function __construct()
{
$this->children = new ArrayCollection();
}
/**
* #ORM\Column(type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* #ORM\Column(type="string", length=100)
*/
protected $name;
/**
* #ORM\Column(type="text")
*/
protected $content;
/**
* #Vich\UploadableField(mapping="beauty_image", fileNameProperty="imageName")
* #var File $imageFile
*/
protected $imageFile;
/**
* #ORM\Column(type="string", length=255, nullable=true, name="image_name")
* #var string $imageName
*/
protected $imageName;
/**
* #ORM\ManyToOne(targetEntity="Category", inversedBy="beauties")
* #ORM\JoinColumn(name="category_id", referencedColumnName="id")
*/
protected $category;
/**
* If manually uploading a file (i.e. not using Symfony Form) ensure an instance
* of 'UploadedFile' is injected into this setter to trigger the update. If this
* bundle's configuration parameter 'inject_on_load' is set to 'true' this setter
* must be able to accept an instance of 'File' as the bundle will inject one here
* during Doctrine hydration.
*
* #param File|\Symfony\Component\HttpFoundation\File\UploadedFile
*/
public function setImageFile(File $image = null)
{
$this->imageFile = $image;
if ($image) {
// It is required that at least one field changes if you are using doctrine
// otherwise the event listeners won't be called and the file is lost
$this->updatedAt = new \DateTime('now');
}
}
/**
* #return File
*/
public function getImageFile()
{
return $this->imageFile;
}
/**
* #param string $imageName
*/
public function setImageName($imageName)
{
$this->imageName = $imageName;
}
/**
* #return string
*/
public function getImageName()
{
return $this->imageName;
}
public function __toString()
{
return ($this->getName()) ? : '';
}
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* #param string $name
* #return Beauty
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* #return string
*/
public function getName()
{
return $this->name;
}
/**
* Set content
*
* #param string $content
* #return Beauty
*/
public function setContent($content)
{
$this->content = $content;
return $this;
}
/**
* Get content
*
* #return string
*/
public function getContent()
{
return $this->content;
}
/**
* Set category
*
* #param \Beautify\BeautiesBundle\Entity\Category $category
* #return Beauty
*/
public function setCategory(\Beautify\BeautiesBundle\Entity\Category $category = null)
{
$this->category = $category;
return $this;
}
/**
* Get category
*
* #return \Beautify\BeautiesBundle\Entity\Category
*/
public function getCategory()
{
return $this->category;
}
/**
* Set children
*
* #param \Beautify\BeautiesBundle\Entity\Children $children
* #return Beauty
*/
public function setChildren(\Beautify\BeautiesBundle\Entity\Children $children = null)
{
$this->children = $children;
return $this;
}
/**
* Get children
*
* #return \Beautify\BeautiesBundle\Entity\Children
*/
public function getChildren()
{
return $this->children;
}
/**
* Add children
*
* #param \Beautify\BeautiesBundle\Entity\Children $children
* #return Beauty
*/
public function addChild(\Beautify\BeautiesBundle\Entity\Children $children)
{
$this->children[] = $children;
return $this;
}
/**
* Remove children
*
* #param \Beautify\BeautiesBundle\Entity\Children $children
*/
public function removeChild(\Beautify\BeautiesBundle\Entity\Children $children)
{
$this->children->removeElement($children);
}
}
Children.php Entity
<?php
namespace Beautify\BeautiesBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Children
*
* #ORM\Table(name="children")
* #ORM\Entity
*/
class Children
{
/**
* #ORM\ManyToOne(targetEntity="Beauty", inversedBy="children")
* #ORM\JoinColumn(name="beauty_id", referencedColumnName="id")
**/
private $beauties;
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="image", type="string", length=255)
*/
private $image;
/**
* #var string
*
* #ORM\Column(name="content", type="text")
*/
private $content;
/**
* #var integer
*
* #ORM\Column(name="priority", type="integer")
*/
private $priority;
/**
* #var integer
*
* #ORM\Column(name="parent_id", type="integer")
*/
private $parentId;
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set image
*
* #param string $image
* #return Children
*/
public function setImage($image)
{
$this->image = $image;
return $this;
}
/**
* Get image
*
* #return string
*/
public function getImage()
{
return $this->image;
}
/**
* Set content
*
* #param string $content
* #return Children
*/
public function setContent($content)
{
$this->content = $content;
return $this;
}
/**
* Get content
*
* #return string
*/
public function getContent()
{
return $this->content;
}
/**
* Set priority
*
* #param integer $priority
* #return Children
*/
public function setPriority($priority)
{
$this->priority = $priority;
return $this;
}
/**
* Get priority
*
* #return integer
*/
public function getPriority()
{
return $this->priority;
}
/**
* Set parentId
*
* #param integer $parentId
* #return Children
*/
public function setParentId($parentId)
{
$this->parentId = $parentId;
return $this;
}
/**
* Get parentId
*
* #return integer
*/
public function getParentId()
{
return $this->parentId;
}
/**
* Set beauties
*
* #param \Beautify\BeautiesBundle\Entity\Beauty $beauties
* #return Children
*/
public function setBeauties(\Beautify\BeautiesBundle\Entity\Beauty $beauties = null)
{
$this->beauties = $beauties;
return $this;
}
/**
* Get beauties
*
* #return \Beautify\BeautiesBundle\Entity\Beauty
*/
public function getBeauties()
{
return $this->beauties;
}
}
Very thankful for any help...

Answer 1

The error says it all. You need to add cascade="persist" to the children property.
/**
* #ORM\OneToMany(targetEntity="Children", mappedBy="beauties", cascade={"persist"})
**/
private $children;
See http://doctrine-orm.readthedocs.org/en/latest/reference/working-with-associations.html#transitive-persistence-cascade-operations