Question

我试图创建一个简单的s2表单作为包含数据的表的过滤器。

由于我没有适当的实体，我已经制作了一个简单的模型类 - YearModel

namespace MyBundle\Model\Filter;

class YearModel
{

    /**
     * @var array
     */
    private $years = array();

    /**
     * @return array
     */
    public function getYears()
    {
        return $this->years;
    }

    /**
     * @param $year
     * @return YearModel
     */
    public function addYear( $year )
    {
        /** .... logic to add new year... */
    }

    /**
     * @param $year
     * @return YearModel
     */
    public function removeYear( $year )
    {
        /** .... logic to remove one ... */
    }
}

然后为该特定过滤器创建了一个FormType：

namespace MyBundle\Form\Filter;

use /** sue statements */

class YearFilterType extends AbstractType
{
    const FILTER_TYPE_NAME = 'years_formfilter';


    public function buildForm( FormBuilderInterface $builder, array $options )
    {
      $builder->add('years', 'choice', array(
        'required'      => true,
        'placeholder'   => false,
      ));

    }

    public function setDefaultOptions( OptionsResolverInterface $resolver )
    {
       $resolver->setDefaults(array(
          'csrf_protection' => false,
          'data_class'      => "MyBundle\\Model\\Filter\\YearModel"
       ));
    }

    public function getName()
    {
       return self::FILTER_TYPE_NAME;
    }
}

我的控制器看起来像这样：

class MyController extends Controller 
{

  public function indexAction(Request $o_request)
  {

    // jsut for demo purpose
    $o_now = new \DateTime();
    // create a new instance of YearModel
    $o_filter_model = new MyBundle\Model\Filter\YearModel();
    // prepopulate with some mandatory data
    $o_filter_model->addYear( (int) $o_now->format('Y') );
    // create s2-form 
    $o_filter_form = $this->_createFilterForm( $o_filter_model );


    if( $o_request->getMethod == 'post' )
    {
      $o_filter_form->handleRequest( $o_request );
    }

    /** .... vodoo-magic ... */

    $a_twig_vars = array(
      'a_data_for_the_table' => $a_found_entries,
      'o_filter_form'        => $o_filter_form->createView(),
    );

    return $this->render("MyBundle:MyController:index.html.twig", $a_twig_vars)

  }

  private function _createFilterForm( MyBundle\Model\Filter\YearModel $o_filter_model)
  {
      $a_form_option = array(
      'method'          => 'POST',
      'attr'            => array(
          'novalidate'     => 'novalidate',
          'accept-charset' => 'UTF-8',
      ),
      );

      $o_filter_model = $this->createForm( new MyBundle\Form\Filter\YearFilterType(), $o_filter_model, $a_form_option );

      $o_filter_model->add('submit', 'submit', array(
      'label' => 'refresh',
      ));

      return $o_filter_model;
    }
}

正如你所知 - 它是一个非常基本的东西，但由于某些原因，下拉列表总是空的，即使$o_filter_model->getYears()返回一个多年的关联数组

我失踪了什么？！

更新另一个想法，我忘了提到：

多年的下拉列表并非真正的静态。
当年应始终在列表中
其他年份（来自DB）可能会出现

这样，我总是＆＃34;添加＆＃34;当年控制器内！所有其他年份都将从DB中读取（为了实现这一点，我尝试使用FormEvent::PRE_SET_DATA事件）

/** in the formBuild-method ... */
cb_pre_set_data = function( FormEvent $o_event ) use ($em) {
   // get model-object
   // find all other years...
};

$builder->addEventListener(FormEvents::PRE_SET_DATA, $cb_pre_set_data);

Symfony2：如何为当前（和所有可用）年份创建简单的表单过滤器

0 个答案: