public function CourseObjectBook::overrideNavigation in Course 7

Same name and namespace in other branches

1. 6 modules/course_book/course_book.classes.inc \CourseObjectBook::overrideNavigation()
2. 7.2 modules/course_book/course_book.classes.inc \CourseObjectBook::overrideNavigation()

Overrides navigation links.

Overrides CourseObject::overrideNavigation

File

modules/course_book/course_book.classes.inc, line 102

Class

CourseObjectBook

Code

public function overrideNavigation() {
  $links = parent::overrideNavigation();
  $node = node_load(arg(1));
  if (isset($node->book)) {
    $book_link = $node->book;
    if ($prev = book_prev($book_link)) {
      $links['prev'] = l(t('Previous'), $prev['href']);
    }
    if ($next = book_next($book_link)) {
      $links['next'] = l(t('Next'), $next['href']);
    }
  }
  return $links;
}