PHP admin_critical_warnings_present函数代码示例

 function build_tree(&$content)
 {
     global $CFG;
     if (is_a($content, 'admin_settingpage')) {
         // show hidden pages in tree if hidden page active
         if ($content->check_access() and ($content->name == $this->section or !$content->is_hidden())) {
             $class = $content->name == $this->section ? 'link current' : 'link';
             if ($content->is_hidden()) {
                 $class .= ' hidden';
             }
             $this->create_item($content->visiblename, $CFG->wwwroot . '/' . $CFG->admin . '/settings.php?section=' . $content->name, $CFG->pixpath . '/i/item.gif', $class);
         }
     } else {
         if (is_a($content, 'admin_externalpage')) {
             // show hidden pages in tree if hidden page active
             if ($content->check_access() and ($content->name == $this->section or !$content->is_hidden())) {
                 $class = $content->name == $this->section ? 'link current' : 'link';
                 if ($content->name === 'adminnotifications') {
                     if (admin_critical_warnings_present()) {
                         $class .= ' criticalnotification';
                     }
                 }
                 if ($content->is_hidden()) {
                     $class .= ' hidden';
                 }
                 $this->create_item($content->visiblename, $content->url, $CFG->pixpath . '/i/item.gif', $class);
             }
         } else {
             if (is_a($content, 'admin_category')) {
                 if ($content->check_access() and !$content->is_hidden()) {
                     // check if the category we're currently printing is a parent category for the current page; if it is, we
                     // make a note (in the javascript) that it has to be expanded after the page has loaded
                     if ($this->section != '' and $this->pathtosection[count($this->pathtosection) - 1] == $content->name) {
                         $this->expandjavascript .= 'expand(' . $this->divcounter . ');' . "\n";
                         array_pop($this->pathtosection);
                     }
                     $this->open_folder($content->visiblename);
                     $entries = array_keys($content->children);
                     foreach ($entries as $entry) {
                         $this->build_tree($content->children[$entry]);
                     }
                     $this->close_folder();
                 }
             }
         }
     }
 }

 /**
  * Load the site administration tree
  *
  * This function loads the site administration tree by using the lib/adminlib library functions
  *
  * @param navigation_node $referencebranch A reference to a branch in the settings
  *      navigation tree
  * @param part_of_admin_tree $adminbranch The branch to add, if null generate the admin
  *      tree and start at the beginning
  * @return mixed A key to access the admin tree by
  */
 protected function load_administration_settings(navigation_node $referencebranch = null, part_of_admin_tree $adminbranch = null)
 {
     global $CFG;
     // Check if we are just starting to generate this navigation.
     if ($referencebranch === null) {
         // Require the admin lib then get an admin structure
         if (!function_exists('admin_get_root')) {
             require_once $CFG->dirroot . '/lib/adminlib.php';
         }
         $adminroot = admin_get_root(false, false);
         // This is the active section identifier
         $this->adminsection = $this->page->url->param('section');
         // Disable the navigation from automatically finding the active node
         navigation_node::$autofindactive = false;
         $referencebranch = $this->add(get_string('administrationsite'), null, self::TYPE_SETTING, null, 'root');
         foreach ($adminroot->children as $adminbranch) {
             $this->load_administration_settings($referencebranch, $adminbranch);
         }
         navigation_node::$autofindactive = true;
         // Use the admin structure to locate the active page
         if (!$this->contains_active_node() && ($current = $adminroot->locate($this->adminsection, true))) {
             $currentnode = $this;
             while (($pathkey = array_pop($current->path)) !== null && $currentnode) {
                 $currentnode = $currentnode->get($pathkey);
             }
             if ($currentnode) {
                 $currentnode->make_active();
             }
         } else {
             $this->scan_for_active_node($referencebranch);
         }
         return $referencebranch;
     } else {
         if ($adminbranch->check_access()) {
             // We have a reference branch that we can access and is not hidden `hurrah`
             // Now we need to display it and any children it may have
             $url = null;
             $icon = null;
             if ($adminbranch instanceof admin_settingpage) {
                 $url = new moodle_url('/' . $CFG->admin . '/settings.php', array('section' => $adminbranch->name));
             } else {
                 if ($adminbranch instanceof admin_externalpage) {
                     $url = $adminbranch->url;
                 } else {
                     if (!empty($CFG->linkadmincategories) && $adminbranch instanceof admin_category) {
                         $url = new moodle_url('/' . $CFG->admin . '/category.php', array('category' => $adminbranch->name));
                     }
                 }
             }
             // Add the branch
             $reference = $referencebranch->add($adminbranch->visiblename, $url, self::TYPE_SETTING, null, $adminbranch->name, $icon);
             if ($adminbranch->is_hidden()) {
                 if (($adminbranch instanceof admin_externalpage || $adminbranch instanceof admin_settingpage) && $adminbranch->name == $this->adminsection) {
                     $reference->add_class('hidden');
                 } else {
                     $reference->display = false;
                 }
             }
             // Check if we are generating the admin notifications and whether notificiations exist
             if ($adminbranch->name === 'adminnotifications' && admin_critical_warnings_present()) {
                 $reference->add_class('criticalnotification');
             }
             // Check if this branch has children
             if ($reference && isset($adminbranch->children) && is_array($adminbranch->children) && count($adminbranch->children) > 0) {
                 foreach ($adminbranch->children as $branch) {
                     // Generate the child branches as well now using this branch as the reference
                     $this->load_administration_settings($reference, $branch);
                 }
             } else {
                 $reference->icon = new pix_icon('i/settings', '');
             }
         }
     }
 }