php EntityManager getRepository,方法 find(id) 返回控制器
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EntityManager getRepository, method find(id) returns controller
提问by Federico Saenz
My problem is that when I try to find a database record using $em->findmethod, it returns me a Controller.
我的问题是,当我尝试使用$em->find方法查找数据库记录时,它返回给我一个控制器。
Let me put an example:
我举个例子:
Neostat\DiagnosticoBundle\Controller\ComponentController.php:
Neostat\DiagnosticoBundle\Controller\ComponentController.php:
$em = $this->getDoctrine()->getEntityManager();
$diagnostico = $em->getRepository('NeostatDiagnosticoBundle:Diagnostico')->find($id);
var_dump(get_class($diagnostico));
It returns Neostat\DiagnosticoBundle\Controller\ComponentController.
它返回Neostat\DiagnosticoBundle\Controller\ComponentController。
But I have an entity called Diagnostico.phpin src/Neostat/DiagnosticoBundle/Entity/Diagnostico.php:
但我有一个名为实体Diagnostico.php在src/Neostat/DiagnosticoBundle/Entity/Diagnostico.php:
namespace Neostat\DiagnosticoBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
use Neostat\PacienteBundle\Entity\Paciente;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
/**
* Diagnostico
*
* @ORM\Table(name="diagnostico")
* @ORM\Entity(repositoryClass="Neostat\DiagnosticoBundle\Entity\DiagnosticoRepository")
* @UniqueEntity(fields={"nombre"}, message="Ya existe un diagnostico con ese nombre.")
*/
class Diagnostico
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
// etc...
}
What am I doing wrong?
我究竟做错了什么?
回答by Thomas Potaire
It doesn't return the Controller (it's not possible), the reason why you think it does is the behavior of the function get_class().
它不返回控制器(这是不可能的),你认为它这样做的原因是函数的行为get_class()。
Quoting the PHP documentation of the function get_class(): "If objectis omitted when inside a class, the name of that class is returned.".
引用函数 get_class()的PHP 文档:“如果object在类内部省略,则返回该类的名称。”。
Basically, in your case the findmethod returns an empty value therefore the entity is not found.
基本上,在您的情况下,该find方法返回一个空值,因此未找到实体。
When the current class is being returned by the function get_class()then you should try the function gettype(); this function will indicate you whether the value returned is a string, an object, NULL or any other types.
当函数返回当前类时,get_class()您应该尝试函数 gettype();此函数将指示您返回的值是字符串、对象、NULL 还是任何其他类型。
回答by thewbb
for find doctrine database record, please using findOneById or like findOneByUser etc..
要查找学说数据库记录,请使用 findOneById 或 findOneByUser 等。
if you want to find a list, using findByField like findByType.
如果要查找列表,请使用 findByField 之类的 findByType。
these is doctrine provide for default.
这些是对违约的规定。

