问题描述
我有一对一双向关系。
在使用symfony2任务生成crud操作后,当我尝试保存与类别在新/编辑类别表单中,产品不保存...
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 $this->name;
}
}
推荐答案
它的双向,您需要更新双方的关联。
As its bidirectional you need to update the association on both sides.
将此函数添加到类别实体(如果您喜欢,可以将其称为addChild):
Add this function into the Category Entity (you can call it addChild if you like):
public function addProduct($product)
{
$this->children->add($product);
}
然后同时更新两个关联:
And then update both associations at the same time:
public function setProductCategory($product_category)
{
$this->productCategory = $product_category;
$product_category->addProduct($this);
}
提示:不要使用$ children / $ parent来描述实体。称它为$ category / $ product,当您想添加另一个父关系时,您将遇到问题。
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.
这篇关于doctrine2:在一对多的双向关系中,如何从逆向保存?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!