/**
* This is the callback function for ALL flows that the flow module responds to.
* All flow processing starts here.
*
* Request Params supported:
* _fid - the id of the flow
* _faction - the name of the action that the user is taking
*
*/
function requestAction()
{
$url = parse_url($this->getRequest()->getRequestUri());
$uri = $url['path'];
$flowFile = $this->getFlowFile();
// Pull the flowId out of the request
$flowId = $this->_getParam('_fid');
$action = $this->_getParam('_faction');
$flow = null;
$session = new Zend_Session_Namespace('flow');
// If the flowId exists on the request then try to continue the existing flow
if (!empty($flowId)) {
$flow = unserialize($session->{$flowId});
$this->flow = $flow;
}
// If no existing flow then create a new one and stick it in the session
if (empty($flow)) {
$flow = new Flow($flowFile, $uri, $this, $this->_request->getControllerName());
$this->flow = $flow;
$flow->process("__INIT__");
}
// Have to always set the controller, because we serialize it but the next request will have a
// Different one
$flow->controller = $this;
$flowId = $flow->id;
// If the user actually tried to do something other than refresh the page
if (!empty($action)) {
// Process the action
$flow->process($action);
// Store the result in the session
$session->{$flowId} = serialize($flow);
// Redirect so that the user can refresh, without warnings from the browser
$this->_helper->redirector->gotoUrl($uri . "?_fid={$flow->id}");
}
// Otherwise, we will just render using the same state info.
// Store the result in the session
$session->{$flowId} = serialize($flow);
$flow->render();
$session->{$flowId} = serialize($flow);
}
