Imagine\Exception\RuntimeException

     */
    public function __call($name, $params)
    {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $object) {
            if ($object->hasMethod($name)) {
                return call_user_func_array([$object, $name], $params);
            }
        }
        throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
    }
 
    /**

    public function getDataCellValue($model, $key, $index)
    {
        if ($this->value !== null) {
            if (is_string($this->value)) {
                return ArrayHelper::getValue($model, $this->value);
            } else {
                return call_user_func($this->value, $model, $key, $index, $this);
            }
        } elseif ($this->attribute !== null) {
            return ArrayHelper::getValue($model, $this->attribute);
        }
        return null;
    }

    /**
     * @inheritdoc
     */
    protected function renderDataCellContent($model, $key, $index)
    {
        if ($this->content === null) {
            return $this->grid->formatter->format($this->getDataCellValue($model, $key, $index), $this->format);
        } else {
            return parent::renderDataCellContent($model, $key, $index);
        }
    }
}

    {
        if ($this->contentOptions instanceof Closure) {
            $options = call_user_func($this->contentOptions, $model, $key, $index, $this);
        } else {
            $options = $this->contentOptions;
        }
        return Html::tag('td', $this->renderDataCellContent($model, $key, $index), $options);
    }
 
    /**
     * Renders the filter cell.
     */
    public function renderFilterCell()

     */
    public function renderTableRow($model, $key, $index)
    {
        $cells = [];
        /* @var $column Column */
        foreach ($this->columns as $column) {
            $cells[] = $column->renderDataCell($model, $key, $index);
        }
        if ($this->rowOptions instanceof Closure) {
            $options = call_user_func($this->rowOptions, $model, $key, $index, $this);
        } else {
            $options = $this->rowOptions;
        }

                $row = call_user_func($this->beforeRow, $model, $key, $index, $this);
                if (!empty($row)) {
                    $rows[] = $row;
                }
            }
 
            $rows[] = $this->renderTableRow($model, $key, $index);
 
            if ($this->afterRow !== null) {
                $row = call_user_func($this->afterRow, $model, $key, $index, $this);
                if (!empty($row)) {
                    $rows[] = $row;
                }

     */
    public function renderItems()
    {
        $caption = $this->renderCaption();
        $columnGroup = $this->renderColumnGroup();
        $tableHeader = $this->showHeader ? $this->renderTableHeader() : false;
        $tableBody = $this->renderTableBody();
        $tableFooter = $this->showFooter ? $this->renderTableFooter() : false;
        $content = array_filter([
            $caption,
            $columnGroup,
            $tableHeader,
            $tableFooter,

    public function renderSection($name)
    {
        switch ($name) {
            case '{summary}':
                return $this->renderSummary();
            case '{items}':
                return $this->renderItems();
            case '{pager}':
                return $this->renderPager();
            case '{sorter}':
                return $this->renderSorter();
            default:
                return false;

    public function renderSection($name)
    {
        switch ($name) {
            case "{errors}":
                return $this->renderErrors();
            default:
                return parent::renderSection($name);
        }
    }
 
    /**
     * Returns the options for the grid view JS widget.
     * @return array the options

     * Runs the widget.
     */
    public function run()
    {
        if ($this->dataProvider->getCount() > 0 || $this->showOnEmpty) {
            $content = preg_replace_callback("/{\\w+}/", function ($matches) {
                $content = $this->renderSection($matches[0]);
 
                return $content === false ? $matches[0] : $content;
            }, $this->layout);
        } else {
            $content = $this->renderEmpty();
        }

    {
        if ($this->dataProvider->getCount() > 0 || $this->showOnEmpty) {
            $content = preg_replace_callback("/{\\w+}/", function ($matches) {
                $content = $this->renderSection($matches[0]);
 
                return $content === false ? $matches[0] : $content;
            }, $this->layout);
        } else {
            $content = $this->renderEmpty();
        }
        $tag = ArrayHelper::remove($this->options, 'tag', 'div');
        echo Html::tag($tag, $content, $this->options);
    }

    {
        $id = $this->options['id'];
        $options = Json::encode($this->getClientOptions());
        $view = $this->getView();
        GridViewAsset::register($view);
        $view->registerJs("jQuery('#$id').yiiGridView($options);");
        parent::run();
    }
 
    /**
     * Renders validator errors of filter model.
     * @return string the rendering result.
     */

    {
        ob_start();
        ob_implicit_flush(false);
        /* @var $widget Widget */
        $config['class'] = get_called_class();
        $widget = Yii::createObject($config);
        $out = $widget->run();
 
        return ob_get_clean() . $out;
    }
 
    private $_id;
 

     */
    public function renderPhpFile($_file_, $_params_ = [])
    {
        ob_start();
        ob_implicit_flush(false);
        extract($_params_, EXTR_OVERWRITE);
        require($_file_);
 
        return ob_get_clean();
    }
 
    /**
     * Renders dynamic content returned by the given PHP statements.

                    $this->renderers[$ext] = Yii::createObject($this->renderers[$ext]);
                }
                /* @var $renderer ViewRenderer */
                $renderer = $this->renderers[$ext];
                $output = $renderer->render($this, $viewFile, $params);
            } else {
                $output = $this->renderPhpFile($viewFile, $params);
            }
            $this->afterRender($viewFile, $params, $output);
        }
 
        array_pop($this->_viewFiles);
        $this->context = $oldContext;

     * @throws InvalidParamException if the view cannot be resolved or the view file does not exist.
     * @see renderFile()
     */
    public function render($view, $params = [], $context = null)
    {
        $viewFile = $this->findViewFile($view, $context);
        return $this->renderFile($viewFile, $params, $context);
    }
 
    /**
     * Finds the view file based on the given view name.
     * @param string $view the view name or the path alias of the view file. Please refer to [[render()]]
     * on how to specify this parameter.

     * These parameters will not be available in the layout.
     * @return string the rendering result.
     * @throws InvalidParamException if the view file or the layout file does not exist.
     */
    public function render($view, $params = [])
    {
        $content = $this->getView()->render($view, $params, $this);
        return $this->renderContent($content);
    }
 
    /**
     * Renders a static string by applying a layout.
     * @param string $content the static string being rendered

        $args = $this->controller->bindActionParams($this, $params);
        Yii::trace('Running action: ' . get_class($this->controller) . '::' . $this->actionMethod . '()', __METHOD__);
        if (Yii::$app->requestedParams === null) {
            Yii::$app->requestedParams = $args;
        }
 
        return call_user_func_array([$this->controller, $this->actionMethod], $args);
    }
}

        }
 
        $result = null;
 
        if ($runAction && $this->beforeAction($action)) {
            // run the action
            $result = $action->runWithParams($params);
 
            $result = $this->afterAction($action, $result);
 
            // call afterAction on modules
            foreach ($modules as $module) {
                /* @var $module Module */

        $parts = $this->createController($route);
        if (is_array($parts)) {
            /* @var $controller Controller */
            list($controller, $actionID) = $parts;
            $oldController = Yii::$app->controller;
            Yii::$app->controller = $controller;
            $result = $controller->runAction($actionID, $params);
            Yii::$app->controller = $oldController;
 
            return $result;
        } else {
            $id = $this->getUniqueId();
            throw new InvalidRouteException('Unable to resolve the request "' . ($id === '' ? $route : $id . '/' . $route) . '".');

            $route = $this->catchAll[0];
            $params = array_splice($this->catchAll, 1);
        }
        try {
            Yii::trace("Route requested: '$route'", __METHOD__);
            $this->requestedRoute = $route;
            $result = $this->runAction($route, $params);
            if ($result instanceof Response) {
                return $result;
            } else {
                $response = $this->getResponse();
                if ($result !== null) {
                    $response->data = $result;

        try {
 
            $this->state = self::STATE_BEFORE_REQUEST;
            $this->trigger(self::EVENT_BEFORE_REQUEST);
 
            $this->state = self::STATE_HANDLING_REQUEST;
            $response = $this->handleRequest($this->getRequest());
 
            $this->state = self::STATE_AFTER_REQUEST;
            $this->trigger(self::EVENT_AFTER_REQUEST);
 
            $this->state = self::STATE_SENDING_RESPONSE;
            $response->send();