如何在Symfony 2表单字段中设置默认值? [英] How to set a default value in a Symfony 2 form field?
问题描述
我一直试图用 Symfony 2
来设置一个表单。
因此,我遵循教程,我创建了一个特殊的类来创建表单并在控制器外部处理验证过程(如文档所示)。
但是现在我需要自动填充字段,我听说我必须在ProductType.php中创建表单(用于我的产品)。
但是我不知道该怎么做,下面是我在ProductType.php中的buildForm函数:
class QuotesType extends AbstractType
{
private $ id;
public function __construct($ id){
$ this-> product_id = $ id;
$ b $ public function buildForm(FormBuilder $ builder,array $ options)
{
$ builder
- > add('user_name','文本')
- > add('user_lastname','text')
- > add('user_email','email')
- > add('user_comments', 'textarea')
- > add('user_product_id','hidden',array(
'data'=> $ this-> product_id,
));
;
$ / code>
它显然不起作用,因为我得到一个SQL错误,说我的字段是null。
如何将一个默认值赋给user_product_id?我应该直接向对象做什么?
编辑:
这是我的代码的一部分实体:
命名空间QN\MainBundle\Entity;
使用Doctrine \ORM\Mapping作为ORM;
使用Symfony \ Component \Vididator\Constraints作为Assert;
$ b $ ** ** b $ b * QN\MainBundle\Entity\Quotes
*
* @ ORM\Table()
* @ORM \Entity(repositoryClass =QN\MainBundle\Entity\QuotesRepository)
* /
class Quotes
{
public function __construct($ p_id )
{
$ this-> date = new \Datetime('today');
$ b $ **
* @var integer $ id
*
* @ ORM\Column(name =id,type =integer)
* @ ORM \Id
* @ ORM\GeneratedValue(strategy =AUTO)
* /
private $ id;
$ b $ **
* @var整数$ user_product_id
*
* @ ORM\Column(name =user_product_id,type =integer)
* /
private $ user_product_id =1;
$ b $ ** b $ b * @var datetime $ date
*
* @ ORM\Column(name =date,type =datetime)
* /
私人$日期;
以及我的控制器:
public function requestAction($ id)
{
$ repository = $ this-> getDoctrine()
- > getEntityManager()
- > ; getRepository( 'QNMainBundle:分类');
$ categories = $ repository-> findAll();
$ quote =新行情($ id);
$ form = $ this-> createForm(new QuotesType(),$ quote);
$ formHandler = new QuotesHandler($ form,$ this-> get('request'),$ this-> getDoctrine() - > getEntityManager());
if($ formHandler-> process())
{
return $ this-> redirect($ this-> generateUrl('QNMain_Product',array(' id'=> $ id)));
$ b return $ this-> render('QNMainBundle:Main:requestaform.html.twig',array(
'categories'=> $ categories,
'id'=> $ id,
'form'=> $ form-> createView(),
));
$ / code>
我的处理程序:
namespace QN\MainBundle\Form;
使用Symfony \ Component \Form\Form;
使用Symfony \Component\HttpFoundation\Request;
使用Doctrine \ORM \EntityManager;
使用QN\MainBundle\Entity\Quotes;
class QuotesHandler
{
protected $ form;
保护$请求;
保护$ em;
public function __construct(Form $ form,Request $ request,EntityManager $ em)
{
$ this-> form = $ form;
$ this-> request = $ request;
$ this-> em = $ em;
$ b $ public function process()
{
if($ this-> request-> getMethod()=='POST')
{
$ this-> form-> bindRequest($ this-> request);
$ b $ if if($ this-> form-> isValid())
{
$ this-> onSuccess($ this-> form-> getData( ));
返回true;
}
}
return false;
}
public function onSuccess(Quotes $ quote)
{
$ this-> em-> persist($ quote);
$ this-> em-> flush();
}
}
我也把这里 Date
我尝试在实体中设置,在这两种情况下我都可能会做错事,因为我无法让它工作.Date不在 buildForm
函数,我不知道是否应该..
在这里要做的就是创建一个安全漏洞:任何人都可以在 user_product_id
字段中注入任何标识,并欺骗你的应用程序。不要提到渲染一个字段并且不显示它是没有用的。
您可以将默认值设置为 user_product_id
在您的实体中:
/ **
* @ ORM \Annotations ...
* /
private $ user_product_id = 9000;
I've been trying to set up a form with Symfony 2
.
So I followed the tutorial and I've created a special class for creating the form and handling the validation process outside the controller (as shown in the documentation)
But now I need to fill in a field automatically, I've heard that I have to do it in the ProductType.php, where the form (for my product) is created.
But I don't know how to do, here is my buildForm function in ProductType.php :
class QuotesType extends AbstractType
{
private $id;
public function __construct($id){
$this->product_id = $id;
}
public function buildForm(FormBuilder $builder, array $options)
{
$builder
->add('user_name', 'text')
->add('user_lastname', 'text')
->add('user_email', 'email')
->add('user_comments', 'textarea')
->add('user_product_id', 'hidden', array(
'data' => $this->product_id,
));
;
}
and it obviously doesnt work since I got a SQL error saying that my field is null.
How can I put a default value to the user_product_id ? should I do it directly to the object ?
EDIT:
Here is a part of the code of my entity :
namespace QN\MainBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* QN\MainBundle\Entity\Quotes
*
* @ORM\Table()
* @ORM\Entity(repositoryClass="QN\MainBundle\Entity\QuotesRepository")
*/
class Quotes
{
public function __construct($p_id)
{
$this->date = new \Datetime('today');
}
/**
* @var integer $id
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var integer $user_product_id
*
* @ORM\Column(name="user_product_id", type="integer")
*/
private $user_product_id = "1";
/**
* @var datetime $date
*
* @ORM\Column(name="date", type="datetime")
*/
private $date;
And my controller :
public function requestAction($id)
{
$repository = $this->getDoctrine()
->getEntityManager()
->getRepository('QNMainBundle:Categories');
$categories = $repository->findAll();
$quote = new Quotes($id);
$form = $this->createForm(new QuotesType(), $quote);
$formHandler = new QuotesHandler($form, $this->get('request'), $this->getDoctrine()->getEntityManager());
if( $formHandler->process() )
{
return $this->redirect( $this->generateUrl('QNMain_Product', array('id' => $id)) );
}
return $this->render('QNMainBundle:Main:requestaform.html.twig', array(
'categories' => $categories,
'id' => $id,
'form' => $form->createView(),
));
}
My Handler :
namespace QN\MainBundle\Form;
use Symfony\Component\Form\Form;
use Symfony\Component\HttpFoundation\Request;
use Doctrine\ORM\EntityManager;
use QN\MainBundle\Entity\Quotes;
class QuotesHandler
{
protected $form;
protected $request;
protected $em;
public function __construct(Form $form, Request $request, EntityManager $em)
{
$this->form = $form;
$this->request = $request;
$this->em = $em;
}
public function process()
{
if( $this->request->getMethod() == 'POST' )
{
$this->form->bindRequest($this->request);
if( $this->form->isValid() )
{
$this->onSuccess($this->form->getData());
return true;
}
}
return false;
}
public function onSuccess(Quotes $quote)
{
$this->em->persist($quote);
$this->em->flush();
}
}
I've also put here the Date
I try to set up in the entity, I might do something wrong in both case since I can't make it work neither ..Date is not in the buildForm
function, I don't know if I should ..
What you're trying to do here is creating a security hole: anyone would be able to inject any ID in the user_product_id
field and dupe you application. Not mentioning that it's useless to render a field and to not show it.
You can set a default value to user_product_id
in your entity:
/**
* @ORM\Annotations...
*/
private $user_product_id = 9000;
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