Symfony 表单集合

Question

我正在尝试在其他表单类型中添加一个 formType。

客户类型：

class CustomerType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('firstname', 'text', array(
                    'required' => 'required'
                ))
                ->add('middlename')
                ->add('lastname')
                ->add('email', 'email')
                ->add('groups', 'entity', array(
                    'class' => 'MV\CMSBundle\Entity\Group',
                    'property' => 'name',
                    'query_builder' => function(EntityRepository $er) {
                        return $er->createQueryBuilder('g')
                                  ->orderBy('g.name', 'ASC');
                    }
                ))
                ->add('profile', 'collection', array(
                    'type' => new ProfileType()
                ));
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'MV\CMSBundle\Entity\User',
        ));
    }

    public function getName()
    {
        return 'customer';
    }
}

个人资料类型：

class ProfileType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('isActive', 'checkbox', array(
                    'required' => false
                ))
                ->add('phone')
                ->add('address')
                ->add('city')
                ->add('zipcode')
                ->add('country')
                ;
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'MV\NameBundle\Entity\Profile',
        ));
    }

    public function getName()
    {
        return 'profile';
    }
}

然后我收到这条消息：

Expected argument of type "array or (\Traversable and \ArrayAccess)", "MV\NameBundle\Entity\Profile" given.

如果我评论该行，我会得到：（只是为了检查会出现什么问题；））

The form's view data is expected to be of type scalar, array or an instance of \ArrayAccess, but is an instance of class MV\NameBundle\Entity\Profile. You can avoid this error by setting the "data_class" option to "MV\NameBundle\Entity\Profile" or by adding a view transformer that transforms an instance of class MV\NameBundle\Entity\Profile to scalar, array or an instance of \ArrayAccess. 

我做错了什么？

Symfony2：2.1.8-DEV

Answer 1

不清楚您的Customer 实体和Profile 实体之间的映射是什么，但我想有两个选项：

---

选项 1：您拥有 OneToOne 关系（一个客户只能拥有一个个人资料）。因此，您根本不需要收藏，只需要embed a single object。

->add('profile', new ProfileType());

---

选项 2：您需要多对一关系（一个客户可以有多个个人资料）。在这种情况下，您需要使用embed a collection of forms。如果这是您想要的，请在您的客户实体中将 $profile 重命名为 $profiles，然后执行以下操作：

   //MV\CMSBundle\Entity\Customer  
   use Doctrine\Common\Collections\ArrayCollection;
   /**
   * Your mapping here. 
   * 
   * @ORM\ManyToOne(targetEntity="MV\NameBundle\Entity\Profile")
   */
   protected $profiles;

    public function __construct()
    {
         //This is why you had an error, this is missing from your entity
         //An object was sent instead of a collection.
         $this->profiles = new ArrayCollection();
    }

最后，更新你的数据库。