DocumentController::processActionStart

protected function processActionStart()
{
	$this->checkRequiredGetParams(array(
		'primaryAction'
	));
	if($this->errorCollection->hasErrors())
	{
		$this->sendJsonErrorResponse();
	}
	$currentUrl = $this->getApplication()->getCurUri();
	$currentUrl = CHTTP::urlDeleteParams($currentUrl, array('document_action'));
	$currentUrl = CHTTP::urlAddParams($currentUrl, array('document_action' => $this->request->getQuery('primaryAction')), array('encode' => true));
	$this->renderStartPage(array(
		'action' => $this->request->getQuery('primaryAction'),
		'url' => $currentUrl,
	));
}