course_content.module in Course 8.3

File

modules/course_content/course_content.module

<?php

use Drupal\Core\Form\FormStateInterface;
use Drupal\node\Entity\NodeType;
use Drupal\node\NodeInterface;

/**
 * Implements hook_form_FORM_ID_alter().
 */
function course_content_form_node_type_form_alter(&$form, FormStateInterface $form_state) {
  $node = $form_state
    ->getFormObject()
    ->getEntity();

  // Alter the node type's configuration form to add our setting.
  $form['course']['course_content_enabled'] = array(
    '#title' => t('Use as course content'),
    '#type' => 'checkbox',
    '#default_value' => $node
      ->getThirdPartySetting('course_content', 'use'),
    '#description' => t('This content type will be used as %course content.', array(
      '%course' => 'Course',
    )),
  );
  $form['#entity_builders'][] = 'course_content_form_node_type_edit_form_builder';
}

/**
 * Set third party course setting on form submit.
 */
function course_content_form_node_type_edit_form_builder($entity_type, NodeType $node_type, &$form, FormStateInterface $form_state) {
  if ($form_state
    ->getValue('course_content_enabled')) {
    $node_type
      ->setThirdPartySetting('course_content', 'use', $form_state
      ->getValue('course_content_enabled'));
    return;
  }
  $node_type
    ->unsetThirdPartySetting('course_content', 'use');
}

/**
 * Implements hook_node_access().
 *
 * Check node access.
 */
function course_content_node_access(NodeInterface $node, $op, $account) {
  if ($op == 'view') {
    if (($courseObject = course_get_course_object('content', $node
      ->id())) && $courseObject
      ->getOption('private')) {

      // This object is inside of a course and the object is private.
      if ($courseObject
        ->getFulfillment($account)
        ->id()) {

        // The user can take the object, so grant access. Make sure it is not
        // cached in case of a revocation.
        return \Drupal\Core\Access\AccessResult::allowed()
          ->setCacheMaxAge(0);
      }
      else {

        // Deny access, make sure it is not cached.
        return \Drupal\Core\Access\AccessResult::forbidden()
          ->setCacheMaxAge(0);
      }
    }
  }
}

Functions

Name	Description
course_content_form_node_type_edit_form_builder	Set third party course setting on form submit.
course_content_form_node_type_form_alter	Implements hook_form_FORM_ID_alter().
course_content_node_access	Implements hook_node_access().