使用表单值Symfony2 Framework更新实体

Question

我正在使用Symfony2 Framework,我想用表单中的数据更新实体.

我使用相同的控制器用一些数据填充表单,同时我用它来在数据库中进行更新查询.如果我使用$ em-> persist($ foo)它确实保存了我想要的东西,但我不想像它的新数据一样保存它,我想要更新.

阅读symfony2书,它说$ em-> flush()就是我们所需要的,所以我们可以更新.

我想我真的很亲密但当然我错过了一些东西.

这是代码:

public function actualizarCurriculoAction($id){

  $curriculo = new Curriculittle();
  $form = $this->createForm(new CurriculittleType(), $curriculo);
  $request = $this->getRequest();

  if ($request->getMethod() == 'POST') {

     $form->bindRequest($request);

     $lselect=$this->get('request')->request->get('lselect');
     $edad=$this->get('request')->request->get('edad');
     $estado=$this->get('request')->request->get('estadoselect'); 

     if ($form->isValid()) {


        $curriculo->setUsalentes($lselect);
        $curriculo->setEdad($edad);
        $curriculo->setEstado($estado);    

        $em = $this->getDoctrine()->getEntityManager();
        /*em->persist($curriculo);*/ 

        $em->flush(); /*the above line is in comment because I just want to update*/

                            /*At this point the entity should be updated, but it's not*/

        /*Llamando a la plantilla de listados*/
        $curriculos = $em->getRepository('SofLaSoflaBundle:Curriculittle')->findAll();

        /*Enviando los datos a la plantilla y Renderizandola*/
        return $this->render('SofLaSoflaBundle:Default:listado.html.twig', array('curriculos' => $curriculos));
     }
  }

  $em = $this->getDoctrine()->getEntityManager();
  $trabajador=$em->getRepository('SofLaSoflaBundle:Curriculittle')->find($id);
  return $this->render('SofLaSoflaBundle:Default:curriculo.html.twig', array('form' => $form->createView(), 'curriculo' => $trabajador));
}

所以,请帮忙.:)

Answer 1

在您的示例中,您要创建一个新实体以开始:

$curriculo = new Curriculittle();

因为这不是一个预先存在的实体(例如,你已经通过数据库查询检索一个),调用$em->persist($curriculo)随后$em->flush()将这个实体保存为一个新项目.没有更新,因为实体是新的.

用于持久化和刷新的相同代码可用于更新现有实体; 您只需要先检索/获取现有实体,而不是创建新实体.目前看起来你正在这个方法结束时这样做:

$trabajador=$em->getRepository('SofLaSoflaBundle:Curriculittle')->find($id);

但是,您应该在绑定表单之前执行此操作,例如:

public function actualizarCurriculoAction($id) {

  $em = $this->getDoctrine()->getEntityManager();
  $curriculo = $em->getRepository('SofLaSoflaBundle:Curriculittle')->find($id);
  if (!$curriculo) {
    $curriculo = new Curriculittle();
  }
  $form = $this->createForm(new CurriculittleType(), $curriculo);
  $request = $this->getRequest();

  if ($request->getMethod() == 'POST') {
     $form->bindRequest($request);

     $lselect=$this->get('request')->request->get('lselect');
     $edad=$this->get('request')->request->get('edad');
     $estado=$this->get('request')->request->get('estadoselect'); 

     if ($form->isValid()) {
        $curriculo->setUsalentes($lselect);
        $curriculo->setEdad($edad);
        $curriculo->setEstado($estado);    

        $em->persist($curriculo);
        $em->flush();

        /*Llamando a la plantilla de listados*/
        $curriculos = $em->getRepository('SofLaSoflaBundle:Curriculittle')->findAll();

        /*Enviando los datos a la plantilla y Renderizandola*/
        return $this->render('SofLaSoflaBundle:Default:listado.html.twig', array('curriculos' => $curriculos));
     }
  }

  return $this->render('SofLaSoflaBundle:Default:curriculo.html.twig', array('form' => $form->createView(), 'curriculo' => $curriculo));
}

此示例(adjust to suit)将查看最初开始的实体,然后将表单的提交绑定到该实体.如果实体存在,则会更新.如果没有,它将被保存为新实体.