function _views_discover_default_views

Scan all modules for default views and rebuild the default views cache.

Return value

An associative array of all known default views.

File

includes/cache.inc, line 98

Code

function _views_discover_default_views($reset = FALSE) {
    static $cache = NULL;
    if (!isset($cache) || $reset) {
        $index = views_cache_get('views_default_views_index', TRUE);
        // Retrieve each cached default view
        if (!$reset && isset($index->data) && is_array($index->data)) {
            $cache = array();
            foreach ($index->data as $view_name) {
                $data = views_cache_get('views_default:' . $view_name, TRUE);
                if (isset($data->data) && is_object($data->data)) {
                    $cache[$view_name] = $data->data;
                }
            }
        }
        else {
            views_include_default_views();
            $cache = array();
            foreach (module_implements('views_default_views') as $module) {
                $results = call_user_func($module . "_views_default_views");
                if (!empty($results) && is_array($results)) {
                    foreach ($results as $name => $view) {
                        // Only views with a sufficiently high api version are eligible.
                        if (!empty($view->api_version) && $view->api_version >= 2) {
                            // Do not cache dead handlers.
                            $view->destroy();
                            if (!isset($cache[$name])) {
                                $cache[$name] = $view;
                            }
                            else {
                                watchdog('view', "View name '@name' is already taken", array(
                                    '@name' => $name,
                                ), WATCHDOG_ERROR);
                            }
                        }
                    }
                }
            }
            // Allow modules to modify default views before they are cached.
            drupal_alter('views_default_views', $cache);
            // Cache the index
            $index = array_keys($cache);
            views_cache_set('views_default_views_index', $index, TRUE);
            // Cache each view
            foreach ($cache as $name => $view) {
                views_cache_set('views_default:' . $name, $view, TRUE);
            }
        }
    }
    return $cache;
}