SYMFONY2:如何将标签，attr添加到实体中以显示形式(Conternatype form，实体ContactMe

Question

如何将 label, trim, attr => [placeholder => "Field name"]添加到实体中以显示形式(形式contactMessAgeType，entity contactmessage(？我正在尝试在一个文件 ->实体类ContactMessage中配置表单字段和实体字段。那可能吗？如果是，怎么样？如果没有，该怎么办？

我的实体：

 use SymfonyComponentValidatorConstraints as Assert;
 use DoctrineORMMapping as ORM;
 /**
 * php app/console doctrine:schema:validate
 * php app/console doctrine:schema:update --force
 *
 * Class ContactMessage
 * @see http://symfony.com/doc/2.8/doctrine/registration_form.html
 *
 * @ORMEntity
 * @ORMTable(name="contact_messages", options={"collate"="utf8_general_ci"})
 */
class ContactMessage
{
    public function __construct()
    {
        $this->createdDateTime = new DateTime("now");
    }
/**
 * @ORMColumn(type="integer", nullable=false, options={"unsigned":true, "length":11})
 * @ORMId
 * @ORMGeneratedValue(strategy="AUTO")
 *
 * @var integer
 */
protected $id;
/**
 * @AssertNotBlank()
 *
 * @ORMColumn(type="string", name="sender_name", nullable=false, length=255, options={})
 *
 * @var string
 */
protected $senderName;
/**
 * @AssertNotBlank()
 *
 * @ORMColumn(type="string", name="sender_email", nullable=false, length=512, options={"default":""})
 *
 * @var string
 */
protected $senderEmail;
/**
 *
 *
 * @ORMColumn(type="string", name="sender_message", nullable=false, length=4096, options={"default":""})
 *
 * @var string
 */
protected $senderMessage;
/**
 *
 * @ORMColumn(type="string", name="sender_phone_number", nullable=false, length=16, options={"default":""})
 *
 * @var string
 */
protected $senderPhoneNumber;
/**
 * @ORMColumn(type="datetime", name="created_date_time", nullable=false,  options={"default": "0000-00-00 00:00:00"})
 *
 * @var DateTime
 */
protected $createdDateTime;
}

Answer 1

我不确定您的问题，但是您可以在yout formType中添加标签和占位符：

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('senderName', TextType::class, [
            'required' => false,
            'label'    => 'Your label',
            'attr'     => [
                'placeholder' => 'Your placeholder',
            ],
        ]);
}