I have the One-to-Many bidirectional relationship below.
After generating the crud actions with a symfony2 task, when I try to save the Products associated to a Category in the new/edit Category form, the products are not saved...
namespace Prueba\FrontendBundle\Entity;
use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* @ORM\Entity
* @ORM\Table(name="category")
*/
class Category
{
/**
* @var integer $id
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\OneToMany(targetEntity="Product", mappedBy="category")
*/
protected $products;
/**
* @ORM\Column(name="name")
*/
protected $name;
public function __construct()
{
$this->products = new ArrayCollection();
}
public function getId()
{
return $this->id;
}
public function getName()
{
return $this->name;
}
public function setName($name)
{
$this->name = $name;
}
public function __toString()
{
return $this->name;
}
public function getProducts()
{
return $this->products;
}
public function setProducts($products)
{
die("fasdf"); //here is not entering
$this->products[] = $products;
}
public function addProduct($product)
{
die("rwerwe"); //here is not entering
$this->products[] = $product;
}
}
namespace Prueba\FrontendBundle\Entity;
use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* @ORM\Entity
* @ORM\Table(name="product")
*/
class Product
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\ManyToOne(targetEntity="Category", inversedBy="products")
* @ORM\JoinColumn(name="category_id", referencedColumnName="id")
*/
protected $category;
/**
* @ORM\Column(type="string", length=100)
*/
protected $name;
public function getId()
{
return $this->id;
}
public function getName()
{
return $this->name;
}
public function setName($name)
{
$this->name = $name;
}
public function getCategory()
{
return $this->category;
}
public function setCategory($category)
{
$this->category = $category;
}
public function __toString()
{
return $this->name;
}
}
As its bidirectional you need to update the association on both sides.
Add this function into the Category Entity (you can call it addChild if you like):
public function addProduct($product)
{
$this->children->add($product);
}
And then update both associations at the same time:
public function setProductCategory($product_category)
{
$this->productCategory = $product_category;
$product_category->addProduct($this);
}
Tip: Dont use $children / $parent to describe Entities. Call it what it is $category / $product, you'll run into issues when you want to add in another "parent" relationship.
Another short solution :
in your category entity , add this line to your addProduct function
public function addProduct($product)
{
$product->setCategory($this); // setting the cateogry of product
$this->products[] = $product;
}
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