/**
* Appends stored position coordinates (x,y) from user profile to nodes.
* Return original array if no positions stored or user is not logged in.
*
* @param \NetAssist\Graph\Nodes[] Nodes to append
* @return \NetAssist\Graph\Nodes[] Nodes with appended positions
*/
private function appendUserPositions($nodes)
{
try {
//get user identity information
$identity = $this->auth->getIdentity();
if (!$identity || $identity == null) {
//if user is not logged in
return $nodes;
}
//get user identifier
$uid = $this->auth->getUserId();
//get users saved nodes positions
$u_nodes = UserNodes::findFirst(array(array("uid" => $uid)));
if ($u_nodes == null) {
//nothing found, return nodes
return $nodes;
}
//read nodes positions
foreach ($nodes as $node) {
if (array_key_exists($node->id, $u_nodes->positions)) {
$pos = (object) $u_nodes->positions[$node->id];
$node->x = $pos->x;
$node->y = $pos->y;
}
}
} catch (Exception $e) {
//log an exception error
error_log(sprintf("Couldn't fetch user graph position, error: %s", addslashes($e->getMessage())), 0);
}
return $nodes;
}
/**
* POST /Graph/Positions
* Save user node positions
*/
public function savePositionsAction()
{
//disable view rendering, we rendering JSON instead of HTML
$this->view->setRenderLevel(View::LEVEL_NO_RENDER);
//Get user identity
$identity = $this->auth->getIdentity();
if (!$identity) {
//If user is not logged in, send HTTP 417
return $this->response->setStatusCode(417, "User is not logged in");
}
try {
//get user identitiy
$uid = $this->auth->getUserId();
//get MongoDate object for current time
$m_now = new \MongoDate(time());
//fetch user record
$user = Users::findById($uid);
if ($user == false) {
//user record not found, send HTTP 403
return $this->response->setStatusCode(403, "User not found");
}
//fetch user saved nodes positions
$u_nodes = UserNodes::findFirst(array(array("uid" => $uid)));
if ($u_nodes == false) {
//nothing exists yet, add new
$u_nodes = new UserNodes();
$u_nodes->uid = $uid;
}
//update modification time
$u_nodes->lastModified = $m_now;
//read JSON from request data
$rawBody = $this->request->getJsonRawBody(true);
//iterate over expected array
foreach ($rawBody as $pos) {
//save node position
$node_id = (int) $pos['id'];
$position = new NodePosition();
//save coordinates
$position->x = (double) $pos['x'];
$position->y = (double) $pos['y'];
$position->node_id = $node_id;
$u_nodes->positions[$node_id] = $position;
}
//save data to the database
if ($u_nodes->save() == false) {
//we have an error, send http 500
return $this->sendStateResponse(false, 500, "MongoDB save failure");
}
} catch (Exception $e) {
//we have an exception error, send http 500, log error
error_log(sprintf("Error during saving nodes positions: %s", addslashes($e->getMessage())), 0);
return $this->sendStateResponse(false, 500, "MongoDB save failure");
}
//success
return $this->sendStateResponse(true);
}
