/**
* @param null|string $controller
* @param null|string $action
* @param array $arguments
* @return string
* @throws \MVCFundamental\Exception\InternalServerErrorException
*/
public function callControllerAction($controller = null, $action = null, array $arguments = array())
{
$this->boot();
$controller_name = $controller;
if (empty($controller)) {
$controller = $this->getOption('default_controller_name');
}
if (empty($action)) {
$action = $this->getOption('default_action_name');
}
if (!empty($controller)) {
if (!is_object($controller)) {
$ctrl = $this->get('locator')->locateController($controller);
if (!empty($ctrl)) {
$controller = new $ctrl();
} else {
throw new InternalServerErrorException(sprintf('Unknown controller "%s"!', $controller_name));
}
}
$arguments = array_merge(Helper::getDefaultEnvParameters(), $arguments);
$action = $this->get('locator')->locateControllerAction($action, $controller);
if (!method_exists($controller, $action) || !is_callable(array($controller, $action))) {
throw new InternalServerErrorException(sprintf('Action "%s" in controller "%s" is not known or not callable!', $action, $controller_name));
}
$result = Helper::fetchArguments($action, $arguments, $controller);
// result as a raw content: a string
if (is_string($result)) {
return $result;
// result as an array like ( view_file , params )
} elseif (is_array($result)) {
$view_file = $this->get('template_engine')->getTemplate($result[0]);
if (!empty($view_file)) {
return $this->render($view_file, isset($result[1]) && is_array($result[1]) ? array_merge($arguments, $result[1]) : $arguments);
}
// a reponse object
} elseif (is_object($result) && ($ri = AppKernel::getApi('response')) && $result instanceof $ri) {
$this->set('response', $result);
}
}
return '';
}
