Php 在symfony中保存数据库中的新表单字段

我今天开始做symfony。我必须在表单中添加一个新字段，并将其保存在表中（orange hrm定制）。 我创建了一个新的表单字段注释。我还修改了目标表。当我提交表单时，注释未保存。我想我必须在symfony中进行一些配置，以便在数据库中保存注释。请帮我解决这个问题

编辑：我的代码是

    public function execute($request) { 

        $this->form = $this->getForm();

        print "<pre>";
    print_r($this->form->getValues());
    print "</pre>";

    //Output shows [comment] => dddd

    $leaveEntitlement = $this->getLeaveEntitlement($this->form->getValues());

    print "<pre>";
    print_r($leaveEntitlement);
    print "</pre>";



    LeaveEntitlement Object
    (
    [_node:protected] => 
    [_id:protected] => Array
    (
        [id] => 1
    )

    [_data:protected] => Array
    (
        [id] => 1
        [emp_number] => 3
        [no_of_days] => 384
        [days_used] => 0.0000
        [leave_type_id] => 2
        [from_date] => 2014-01-01 00:00:00
        [to_date] => 2014-01-31 00:00:00

        [credited_date] => 2014-01-30 00:00:00
        [note] => 
        [entitlement_type] => 1
        [deleted] => 0
        [created_by_id] => 1
        [created_by_name] => Admin
    )

    [_values:protected] => Array
    (
    )


    // It is not showing [comment] => dddd
}

公共函数执行（$request）{
$this->form=$this->getForm（）；
打印“”；
class YourController extends Controller
{
    public function executeAction($request)
    {
        $entity = new Comment;
        $form = $this->createForm(new CommentType(), $entity);

            $form->handleRequest($request);

            if ($form->isValid())
            {
                $em = $this->getDoctrine()->getManager(); // this is where it begins
                $em->persist($entity); // it goes on
                $em->flush(); // done!

                return $this->redirect($this->generateUrl('your_next_url'));
            }

            return $this->render('YourBundle:YourDirectory:template.html.twig', array(
                'form' => $form->createView(),
            ));
    }
}

打印（$this->form->getValues（））；
class YourController extends Controller
{
    public function executeAction($request)
    {
        $entity = new Comment;
        $form = $this->createForm(new CommentType(), $entity);

            $form->handleRequest($request);

            if ($form->isValid())
            {
                $em = $this->getDoctrine()->getManager(); // this is where it begins
                $em->persist($entity); // it goes on
                $em->flush(); // done!

                return $this->redirect($this->generateUrl('your_next_url'));
            }

            return $this->render('YourBundle:YourDirectory:template.html.twig', array(
                'form' => $form->createView(),
            ));
    }
}

打印“”；
class YourController extends Controller
{
    public function executeAction($request)
    {
        $entity = new Comment;
        $form = $this->createForm(new CommentType(), $entity);

            $form->handleRequest($request);

            if ($form->isValid())
            {
                $em = $this->getDoctrine()->getManager(); // this is where it begins
                $em->persist($entity); // it goes on
                $em->flush(); // done!

                return $this->redirect($this->generateUrl('your_next_url'));
            }

            return $this->render('YourBundle:YourDirectory:template.html.twig', array(
                'form' => $form->createView(),
            ));
    }
}

//输出显示[注释]=>dddd
$leaveAuthentication=$this->getleaveAuthentication（$this->form->getValues（））；
打印“”；
class YourController extends Controller
{
    public function executeAction($request)
    {
        $entity = new Comment;
        $form = $this->createForm(new CommentType(), $entity);

            $form->handleRequest($request);

            if ($form->isValid())
            {
                $em = $this->getDoctrine()->getManager(); // this is where it begins
                $em->persist($entity); // it goes on
                $em->flush(); // done!

                return $this->redirect($this->generateUrl('your_next_url'));
            }

            return $this->render('YourBundle:YourDirectory:template.html.twig', array(
                'form' => $form->createView(),
            ));
    }
}

印刷费（$）；
class YourController extends Controller
{
    public function executeAction($request)
    {
        $entity = new Comment;
        $form = $this->createForm(new CommentType(), $entity);

            $form->handleRequest($request);

            if ($form->isValid())
            {
                $em = $this->getDoctrine()->getManager(); // this is where it begins
                $em->persist($entity); // it goes on
                $em->flush(); // done!

                return $this->redirect($this->generateUrl('your_next_url'));
            }

            return $this->render('YourBundle:YourDirectory:template.html.twig', array(
                'form' => $form->createView(),
            ));
    }
}

打印“”；
class YourController extends Controller
{
    public function executeAction($request)
    {
        $entity = new Comment;
        $form = $this->createForm(new CommentType(), $entity);

            $form->handleRequest($request);

            if ($form->isValid())
            {
                $em = $this->getDoctrine()->getManager(); // this is where it begins
                $em->persist($entity); // it goes on
                $em->flush(); // done!

                return $this->redirect($this->generateUrl('your_next_url'));
            }

            return $this->render('YourBundle:YourDirectory:template.html.twig', array(
                'form' => $form->createView(),
            ));
    }
}

离开权利对象
(
[\u节点：受保护]=>
[\u id:protected]=>阵列
(
[id]=>1
)
[\u数据：受保护]=>阵列
(
[id]=>1
[emp_编号]=>3
[天数]=>384
[使用天数]=>0.0000
[离开类型\u id]=>2
[起始日期]=>2014-01-01 00:00:00
[截止日期]=>2014-01-31 00:00:00
[日期]=>2014-01-30 00:00:00
[注]=>
[权利类型]=>1
[已删除]=>0
[由\u id创建的\u]=>1
[按名称创建]=>管理员
)
[\u值：受保护]=>阵列
(
)
//它没有显示[注释]=>dddd
}

这种魔力必须发生在您的控制器中，您必须使用两件事：

您必须调用

$form->handleRequest（$request）

您还需要使用

$em->persist（$entity）->flush（）持久化实体

下面是一个基于代码的示例。这是处理表单时控制器的一部分：

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