这就是我的代码段的样子。
// ---这是我控制器中的代码----
$registrationForm = $this->createFormBuilder()
->add('email')
->add('password', 'repeated', array('type' => 'password', 'invalid_message' => 'Passwords do not match'))
->getForm();
return $this->render('AcmeHelloBundle:Default:index.html.twig', array('form' => $registrationForm->createView()));
// --- This is the twig file code----
<form action="#" method="post" {{ form_enctype(form) }}>
{{ form_errors(form) }}
{{ form_row( form.email, { 'label': 'E-Mail:' } ) }}
{{ form_errors( form.password ) }}
{{ form_row( form.password.first, { 'label': 'Your password:' } ) }}
{{ form_row( form.password.second, { 'label': 'Repeat Password:' } ) }}
{{ form_rest( form ) }}
<input type="submit" value="Register" />
</form>
任何人都可以建议使用表单构建器的原因吗?
答案 0 :(得分:8)
在Symfony 2中,验证由域对象处理。因此,您必须将实体(域对象)传递给表单。
控制器中的代码:
public function testAction()
{
$registration = new \Acme\DemoBundle\Entity\Registration();
$registrationForm = $this->createFormBuilder($registration)
->add('email')
->add('password', 'repeated', array('type' => 'password', 'invalid_message' => 'Passwords do not match'))
->getForm();
$request = $this->get('request');
if ('POST' == $request->getMethod()) {
$registrationForm->bindRequest($request);
if ($registrationForm->isValid()) {
return new RedirectResponse($this->generateUrl('registration_thanks'));
}
}
return $this->render('AcmeDemoBundle:Demo:test.html.twig', array('form' => $registrationForm->createView()));
}
1)表单构建器将使用您实体的属性映射表单字段,并使用您的实体属性值来保存表单字段值。
$registrationForm = $this->createFormBuilder($registration)...
2)bind将使用发布的所有数据来保存表单字段值
$registrationForm->bindRequest($request);
3)启动验证
$registrationForm->isValid()
4)如果发布的数据有效,您必须重定向到某个操作以通知用户一切正常,以避免显示来自您的broswer的警告消息,询问您是否确定要重新发布数据。
return new RedirectResponse($this->generateUrl('registration_thanks'));
实体代码:
<?php
namespace Acme\DemoBundle\Entity;
class Registration
{
private $email;
private $password;
public function getEmail()
{
return $this->email;
}
public function setEmail($email)
{
$this->email = $email;
}
public function getPassword()
{
return $this->password;
}
public function setPassword($password)
{
$this->password = $password;
}
}
验证文档:http://symfony.com/doc/current/book/validation.html
注意:无需在密码实体属性上添加一些验证,repeatType为您完成