function views_ajax

Menu callback to load a view via AJAX.

Related topics

File

core/modules/views/includes/ajax.inc, line 16

Handles the server side AJAX interactions of Views.

Code

function views_ajax() {
  if (isset($_REQUEST['view_name']) && isset($_REQUEST['view_display_id'])) {
    $name = $_REQUEST['view_name'];
    $display_id = $_REQUEST['view_display_id'];
    $args = isset($_REQUEST['view_args']) && $_REQUEST['view_args'] !== '' ? explode('/', $_REQUEST['view_args']) : array();
    $path = isset($_REQUEST['view_path']) ? rawurldecode($_REQUEST['view_path']) : NULL;
    $dom_id = isset($_REQUEST['view_dom_id']) ? preg_replace('/[^a-zA-Z0-9_-]+/', '-', $_REQUEST['view_dom_id']) : NULL;
    $pager_element = isset($_REQUEST['pager_element']) ? intval($_REQUEST['pager_element']) : NULL;

    $commands = array();

    // Remove all of this stuff from $_GET so it doesn't end up in pagers and tablesort URLs.
    foreach (array('view_name', 'view_display_id', 'view_args', 'view_path', 'view_dom_id', 'pager_element', 'view_base_path', 'ajax_html_ids', 'ajax_page_state') as $key) {
      if (isset($_GET[$key])) {
        unset($_GET[$key]);
      }
      if (isset($_REQUEST[$key])) {
        unset($_REQUEST[$key]);
      }
      if (isset($_POST[$key])) {
        unset($_POST[$key]);
      }
    }

    // Load the view.
    $view = views_get_view($name);
    if ($view && $view->access($display_id) && $view->set_display($display_id) && $view->display_handler->use_ajax()) {
      // Fix 'q' for paging.
      if (!empty($path)) {
        $_GET['q'] = $path;
      }

      // Add all $_POST data, because AJAX is always a post and many things,
      // such as tablesorts, exposed filters and paging assume $_GET.
      $_GET = $_POST + $_GET;

      // Overwrite the destination.
      // @see backdrop_get_destination()
      $origin_destination = $path;
      $query = backdrop_http_build_query(backdrop_get_query_parameters());
      if ($query != '') {
        $origin_destination .= '?' . $query;
      }
      $destination = &backdrop_static('backdrop_get_destination');
      $destination = array('destination' => $origin_destination);

      // Override the display's pager_element with the one actually used.
      if (isset($pager_element)) {
        $commands[] = views_ajax_command_scroll_top('.view-dom-id-' . $dom_id);
        $view->display[$display_id]->handler->set_option('pager_element', $pager_element);
      }
      // Reuse the same DOM id so it matches that in Backdrop.settings.
      $view->dom_id = $dom_id;

      $commands[] = ajax_command_replace('.view-dom-id-' . $dom_id, $view->preview($display_id, $args));
    }
    backdrop_alter('views_ajax_data', $commands, $view);
    return array('#type' => 'ajax', '#commands' => $commands);
  }
}