gistfile1.txt

<?php
namespace Examplecms\Bundle\ExampleCoreBundle\Form;

use Symfony\Component\Form\AbstractType,
    Symfony\Component\Form\FormBuilder;

use Examplecms\Bundle\ExampleCoreBundle\Form\EventListener\SearchCriteriaSubscriber,
    Examplecms\Bundle\ExampleCoreBundle\Validator\Constraints as ExamplecmsAssert;

/**
 * Search form.
 */
class SearchType extends AbstractType
{
    /**
     * @param FormBuilder $builder The builder object
     * @param array       $options Its options
     */
    public function buildForm(FormBuilder $builder, array $options)
    {
      // Take into account search_criteria_1
      if ($options['search_criteria_1']) {
          $subscriber = new SearchCriteriaSubscriber(
              $builder->getFormFactory(),
              array('searchCriteria' => 'search_criteria_1')
          );
          $builder->addEventSubscriber($subscriber);
      }

      // Take into account search_criteria_2
      if ($options['search_criteria_2']) {
          $subscriber = new SearchCriteriaSubscriber(
              $builder->getFormFactory(),
              array('searchCriteria' => 'search_criteria_2')
          );
          $builder->addEventSubscriber($subscriber);
      }

      // Take into account search_criteria_3
      if ($options['search_criteria_3']) {
          $subscriber = new SearchCriteriaSubscriber(
              $builder->getFormFactory(),
              array('searchCriteria' => 'search_criteria_3')
          );
          $builder->addEventSubscriber($subscriber);
      }

      // Take into account search_criteria_4
      if ($options['search_criteria_4']) {
          $subscriber = new SearchCriteriaSubscriber(
              $builder->getFormFactory(),
              array('searchCriteria' => 'search_criteria_4')
          );
          $builder->addEventSubscriber($subscriber);
      }

      // ...
      }
    }

    /**
    * @param array $options
     *
    * @return array
    */
    public function getDefaultOptions(array $options)
    {
      return array(
        'search_criteria_1' => false,
        'search_criteria_2' => false,
        'search_criteria_3' => false,
        'search_criteria_4' => false,
        'search_criteria_5' => false,
        'search_criteria_6' => false,
        'search_criteria_7' => false,
        'search_criteria_8' => false,
        'search_criteria_9' => false,
        // ...
        'validation_constraint' => new ExamplecmsAssert\Search(),
      );
    }

    /**
     * @return string The name of the form
     */
    public function getName()
    {
      return 'search';
    }
}