php - Symfony2子窗体

所以，我试图将一个表单嵌入到另一个表单中，而不为表单创建类。这是我得到的

    $form = $this
        ->buildForm('UserAlert', $alert)
        ->add('Alert', 'entity', array('class' => 'Blah\MgmtBundle\Entity\Alert', 'property' => 'name', 'required' => true))
        ->add('Site', 'entity', array('class' => 'Blah\MgmtBundle\Entity\Site', 'property' => 'name', 'required' => false))
        ->add('Keyword', 'entity', array('class' => 'Blah\MgmtBundle\Entity\Keyword', 'property' => 'name', 'required' => false))
        ->add('Variant', 'entity', array('class' => 'Blah\MgmtBundle\Entity\Variant', 'property' => 'name', 'required' => false))
        ->add('Name', 'text');


    $uac = $alert->getUserAlertConfig();
    $subform = $this
        ->buildForm('UserAlertConfig', $uac)
        ->add('EmailAlert', 'choice', array('choices' => array('1' => 'Yes', '0' => 'No'), 'required' => true, 'label' => 'Email Alerts'))
        ->add('EmailHours', 'text', array('required' => false, 'label' => 'Email Alert Hours'))
        ->add('TextAlert', 'choice', array('choices' => array('1' => 'Yes', '0' => 'No'), 'required' => true, 'label' => 'Text Alerts'))
        ->add('TextHours', 'text', array('required' => false, 'label' => 'Text Alert Hours'));

    $form->add($subform);
    $form = $form->getForm();

然而，关于getForm()函数，它的说法是

Neither property "form" nor method "getForm()" nor method "isForm()" exists in class "Blah\MgmtBundle\Entity\UserAlert"

有人知道我应该如何使用快速加载的东西让这个工作吗？
这是建筑形式

public function buildForm($model = '', $data)
{
    if (empty($model)) {
        throw new \Exception("Must define a model");
    }
    return $this->get('form.factory')->createBuilder('form', $data, array('data_class' => "\\Blah\\MgmtBundle\\Entity\\$model"));
}


    Stack Trace
in /mnt/www/reporting/vendor/symfony/src/Symfony/Component/Form/Util/PropertyPath.php at line 314
at PropertyPath ->readProperty (object(UserAlert), '0')
in /mnt/www/reporting/vendor/symfony/src/Symfony/Component/Form/Util/PropertyPath.php at line 191
at PropertyPath ->getValue (object(UserAlert))
in /mnt/www/reporting/vendor/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php at line 64
at PropertyPathMapper ->mapDataToForm (object(UserAlert), object(Form))
in /mnt/www/reporting/vendor/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php at line 55
at PropertyPathMapper ->mapDataToForms (object(UserAlert), array('_token' => object(Form), 'Alert' => object(Form), 'Site' => object(Form), 'Keyword' => object(Form), 'Variant' => object(Form), 'Name' => object(Form), 'form' => object(Form)))
in /mnt/www/reporting/vendor/symfony/src/Symfony/Component/Form/Form.php at line 404
at Form ->setData (object(UserAlert))
in /mnt/www/reporting/vendor/symfony/src/Symfony/Component/Form/FormBuilder.php at line 659
at FormBuilder ->getForm ()
in /mnt/www/reporting/src/Blah/MgmtBundle/Controller/AlertController.php at line 96
at AlertController ->editAction ('1')
in at line
at call_user_func_array (array(object(AlertController), 'editAction'), array('1'))
in kernel.root_dir/bootstrap.php.cache at line 438
at HttpKernel ->handleRaw (object(Request), '1')
in kernel.root_dir/bootstrap.php.cache at line 416
at HttpKernel ->handle (object(Request), '1', true)
in /mnt/www/reporting/vendor/symfony/src/Symfony/Bundle/FrameworkBundle/HttpKernel.php at line 44
at HttpKernel ->handle (object(Request), '1', true)
in kernel.root_dir/bootstrap.php.cache at line 612
at Kernel ->handle (object(Request))
in /mnt/www/reporting/web/app_dev.php at line 12

最佳答案

最后为子窗体创建了一个接口并像这样添加它

    $form = $this
        ->buildForm('UserAlert', $alert)
        ->add('Alert', 'entity', array('class' => 'Neokeo\MgmtBundle\Entity\Alert', 'property' => 'name', 'required' => true))
        ->add('Site', 'entity', array('class' => 'Neokeo\MgmtBundle\Entity\Site', 'property' => 'name', 'required' => false))
        ->add('Keyword', 'entity', array('class' => 'Neokeo\MgmtBundle\Entity\Keyword', 'property' => 'name', 'required' => false))
        ->add('Variant', 'entity', array('class' => 'Neokeo\MgmtBundle\Entity\Variant', 'property' => 'name', 'required' => false))
        ->add('Name', 'text');

    $uac = $alert->getUserAlertConfig();



    $subform = $this->buildForm('UserAlertConfig', $uac, new \Neokeo\MgmtBundle\Form\UserAlertConfig)
        ->add('EmailAlert', 'choice', array('choices' => array('0' => 'No', '1' => 'Yes'), 'required' => true, 'label' => 'Email Alerts'))
        ->add('TextAlert', 'choice', array('choices' => array('0' => 'No', '1' => 'Yes'), 'required' => true, 'label' => 'Text Alerts'));

    $form->add($subform, '', array('label' => ''));
    $form = $form->getForm();

如果有人不需要创建接口就可以找到更简单的方法，请告诉我