Question

任何人都可以帮我解决我的错误吗？服务器返回内部服务器错误500.它看起来我无法获得控制器。任何人都可以解释我的错误在哪里？我认为这是在路由自动完成路径，但我不确定。如果是我该如何解决？非常感谢，伙计们

我的表单自动填充表单元素：

$form['field_father'] = array(
        '#title' => t('Father'),
        '#type' => 'textfield',
        '#autocomplete_route_name' => 'cows.autocomplete',
        '#autocomplete_route_parameters' => array(),
      );

模块路由文件：

cows.form:
 path: '/cows/add'
 defaults:
   _title: 'Add a cow'
   _form: '\Drupal\cows\Form\CowsForm'
 requirements:
   _permission: 'access content'

cows.autocomplete:
  path: '/cows/autocomplete'
  defaults:
    _controller: '\Drupal\cows\Controller\CowsController::autocomplete'
  requirements:
    _permission: 'access content'

控制器代码：

namespace Drupal\cows\Controller;

use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\HttpFoundation\JsonResponse;


class CowsController extends ControllerBase
{
    public function autocomplete(Request $request)
    {
      $matches = [];
      $string = $request->query->get('q');

      $query = \Drupal::database()->select('node__field_name', 'fn');
      $query->fields('fn', ['field_name_value', 'entity_id']);
      $query->addField('fg', 'field_gender_value');
      $query->join('node__field_gender', 'fg', 'fg.entity_id = fn.entity_id ');
      $query->condition('fn.field_name_value', '%' . $string . '%', 'LIKE');
      $query->condition('fg.field_gender_value', array('bull','ox'), 'IN');
      $result = $query->execute();

      foreach ($result as $row) {
        $matches[] = ['value' => $row->entity_id, 'label' => $row->field_name_value];
      }

      return new JsonResponse($matches);
    }
}

非常感谢

Answer 1

使用命名空间来支持Request $请求。

namespace Drupal\cows\Controller;

use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\HttpFoundation\JsonResponse;
/****this is newly added****/
use Symfony\Component\HttpFoundation\Request;

class CowsController extends ControllerBase
{
    public function autocomplete(Request $request)
    {
      $matches = [];
      $string = $request->query->get('q');

      $query = \Drupal::database()->select('node__field_name', 'fn');
      $query->fields('fn', ['field_name_value', 'entity_id']);
      $query->addField('fg', 'field_gender_value');
      $query->join('node__field_gender', 'fg', 'fg.entity_id = fn.entity_id ');
      $query->condition('fn.field_name_value', '%' . $string . '%', 'LIKE');
      $query->condition('fg.field_gender_value', array('bull','ox'), 'IN');
      $result = $query->execute();

      foreach ($result as $row) {
        $matches[] = ['value' => $row->entity_id, 'label' => $row->field_name_value];
      }

      return new JsonResponse($matches);
    }
}

Answer 2

真的很有效。所以问题解决了。我只是想重复一遍 - 我错过了添加Request命名空间：

使用Symfony \ Component \ HttpFoundation \ Request;

谢谢，@ vishwa！

Drupal 8自定义自动填充错误500

2 个答案: