Backend\Modules\Dashboard\Actions\Index::loadData PHP Method

    private function loadData()
    {
        $modules = BackendModel::getModules();
        $filesystem = new Filesystem();
        // fetch the hidden widgets for all groups the user is in
        $hiddenWidgets = [];
        $userGroups = BackendAuthentication::getUser()->getGroups();
        $groupCount = count($userGroups);
        foreach ($userGroups as $group) {
            foreach (BackendGroupsModel::getSetting($group, 'hidden_on_dashboard') as $module => $widgets) {
                foreach ($widgets as $widget) {
                    $hiddenWidgets[] = $module . $widget;
                }
            }
        }
        // only widgets hidden for all user groups should really be hidden
        $hiddenWidgets = array_count_values($hiddenWidgets);
        $hiddenWidgets = array_filter($hiddenWidgets, function ($hiddenCount) use($groupCount) {
            return $hiddenCount === $groupCount;
        });
        // loop all modules
        foreach ($modules as $module) {
            // build pathName
            $pathName = BACKEND_MODULES_PATH . '/' . $module;
            // you have sufficient rights?
            if (BackendAuthentication::isAllowedModule($module) && $filesystem->exists($pathName . '/Widgets')) {
                $finder = new Finder();
                $finder->name('*.php');
                // loop widgets
                foreach ($finder->files()->in($pathName . '/Widgets') as $file) {
                    /** @ver $file \SplFileInfo */
                    $widgetName = $file->getBasename('.php');
                    $className = 'Backend\\Modules\\' . $module . '\\Widgets\\' . $widgetName;
                    if ($module == 'Core') {
                        $className = 'Backend\\Core\\Widgets\\' . $widgetName;
                    }
                    // if the widget is hidden for all the users groups, don't render it
                    if (array_key_exists($module . $widgetName, $hiddenWidgets)) {
                        continue;
                    }
                    if (!class_exists($className)) {
                        throw new BackendException('The widgetfile ' . $className . ' could not be found.');
                    }
                    // create instance
                    /** @var $instance BackendBaseWidget */
                    $instance = new $className($this->getKernel());
                    // has rights
                    if (!$instance->isAllowed()) {
                        continue;
                    }
                    $instance->execute();
                    // user sequence provided?
                    $title = \SpoonFilter::ucfirst(BL::lbl(\SpoonFilter::toCamelCase($module))) . ': ' . BL::lbl(\SpoonFilter::toCamelCase($widgetName));
                    $templatePath = $instance->getTemplatePath();
                    // reset template path
                    if ($templatePath == null) {
                        $templatePath = '/' . $module . '/Layout/Widgets/' . $widgetName . '.html.twig';
                    }
                    $templating = $this->get('template');
                    $content = trim($templating->getContent($templatePath));
                    if (empty($content)) {
                        continue;
                    }
                    // build item
                    $item = array('content' => $content, 'module' => $module, 'widget' => $widgetName, 'title' => $title);
                    // add on new position if no position is set or if the position is already used
                    $this->widgets[] = $item;
                }
            }
        }
    }