如何根据Symfony2/3中的用户角色自定义表单字段? [英] How to customize form field based on user roles in Symfony2/3?

问题描述

是否有正确的方法来根据请求它的用户的角色自定义表单?

我的场景非常简单:如果用户没有授予 ROLE_ADMIN 权限，我需要隐藏一些字段.我试图避免 Twig 上的字段显示，但是

My scenario is pretty simple: I need to hide some fields if the user has not the ROLE_ADMIN granted. I tried to avoid the field display on Twig, but

  {% if is_granted('ROLE_ADMIN') %}
              {{form_row(form.field)}}
  {% endif %}

不起作用，因为表单构建器绕过了这个检查.

not works, because the form builder bypass this check.

Symfony 版本:2.8.2

Symfony version: 2.8.2

编辑

感谢@Rooneyl 建议，我找到了解决方案:

Thanks to the @Rooneyl suggestion I've found the solution:

首先，您需要将 'role' 键添加到 options 参数中.因此，在 configureOptions() $options['role'] 中总是 ROLE_USER.

At first, you need to add the 'role' key to the options parameter. So, in the configureOptions() $options['role'] is always ROLE_USER.

/**
 * @param OptionsResolver $resolver
 */
public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'MyBundle\Entity\Ticket',
        'role' => 'ROLE_USER'
    ));
}

然后在控制器中你必须传递 getRoles() 数组:

Then in the controller you have to pass the getRoles() array:

$user_roles = $this->getUser()->getRoles();
$form = $this->createForm('MyBundle\Form\TicketType', $ticket, array('role' => $user_roles));

推荐答案

您可以使用传递给表单构建器的选项来说明生成了哪些元素.
通过这种方式，您可以更改已完成的内容和验证(使用 validation_groups).
例如，您的控制器(假设角色是一个数组)；
您的控制器；

You could use an option passed to the form builder to say what elements are generated.
This way you can change the content and validation that gets done (using validation_groups).
For example, your controller (assuming roles is an array);
you controller;

$form = $this->createForm(new MyType(), $user, ['role' => $this->getUser()->getRoles()]);

还有你的表格:

<?php 
namespace AppBundle\Form\Entity;

use AppBundle\Entity\UserRepository;
use Symfony\Component\Form\AbstractType,
    Symfony\Component\Form\FormBuilderInterface,
    Symfony\Component\OptionsResolver\OptionsResolver;

class MyType extends AbstractType 
{
    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\User',
            'validation_groups' => ['create'],
            'role' => ['ROLE_USER']
        ));
    }

    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // dump($options['roles']);
        if (in_array('ROLE_ADMIN', $options['role'])) {
            // do as you want if admin
            $builder
                ->add('name', 'text');
        } else {
            $builder
                ->add('supername', 'text');
        }
    }

    /**
     * @return string
     */
    public function getName()
    {
        return 'appbundle_my_form';
    }

}

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