DefaultController.php in Matrix field 8.2

Namespace

Drupal\matrix\Controller

File

src/Controller/DefaultController.php

<?php

namespace Drupal\matrix\Controller;

use Drupal\Core\Controller\ControllerBase;

/**
 * Default controller for the matrix module.
 */
class DefaultController extends ControllerBase {
  public function matrix_custom_calculation_callback() {
    $callback = $_POST['callback'];
    $data = explode(",", $_POST['data']);
    $functions = \Drupal::moduleHandler()
      ->invokeAll('matrix_functions');

    //ensure the callback is allowed
    if (!in_array($callback, array_keys($functions['calculation']))) {
      drupal_json_output([
        'error' => t('Calcuation callback function not available'),
      ]);
      exit;
    }

    //ensure the data is safe
    foreach ($data as $id => $d) {
      $data[$id] = check_plain($d);
    }
    $result = call_user_func($callback, $data);
    drupal_json_output([
      'data' => check_plain($result),
    ]);
    exit;
  }

}

Classes

Name	Description
DefaultController	Default controller for the matrix module.