public function init()
{
$this->_auth = Zend_Auth::getInstance();
if ($this->_auth->hasIdentity()) {
$identity = Zend_Auth::getInstance()->getIdentity();
if (!isset($identity->username)) {
// Don't know how you got here... But you're not authenticated
$this->_helper->redirector("login", "auth");
//Must Log in before accessing anything
}
$this->view->username = $identity->username;
// Determine what sidebars this person has access to
// (Determined at this point by defined groups)
$auth_model = Model_Auth_General::getAuthModel();
if ($auth_model->userInGroup($identity->username, QUIZ_ADMINISTRATORS)) {
$this->view->is_admin = true;
} else {
$this->view->is_admin = false;
}
} else {
$this->_helper->redirector("login", "auth");
//Must Log in before accessing anything
}
$this->view->baseUrl = Zend_Controller_Front::getInstance()->getBaseUrl();
if (!$this->view->is_admin) {
throw new Ecxeption("Unauthorised.", 3005);
}
}
/**
* The Login Action
* @author Ben Evans
*/
public function loginAction()
{
$this->view->headTitle("Login");
$this->view->title = "Login";
if ($this->getRequest()->isPost()) {
$username = $this->_getParam("rqz-username");
$password = $this->_getParam("rqz-password");
//echo("$username $password");
if (isset($username) && isset($password)) {
// We have some Data. Call the Authentication Model
$auth_model = Model_Auth_General::getAuthModel();
$auth_result = $auth_model->authenticate($username, $password);
if ($auth_result === true) {
$auth_storage = $this->_auth->getStorage();
$auth_object = new stdClass();
$auth_object->username = $username;
$auth_object->login_time = time();
$auth_storage->write($auth_object);
$identity = Zend_Auth::getInstance()->getIdentity();
$this->_helper->redirector("index", "index");
}
}
$this->view->msg = "There was a problem with your credentials. Check your username and password, and try again.";
}
}
public function indexAction()
{
$auth_model = Model_Auth_General::getAuthModel();
$result = $auth_model->authenticate("administrator", "fgkjh");
var_dump($result);
die("finished");
}
/**
* This action is the quiz shell.
* It ensures permissions, creates new attempts etc etc.
*
* @author Ben Evans
*/
public function attemptAction()
{
Model_Shell_Debug::getInstance()->log("User Entered the Attempt Action");
$identity = Zend_Auth::getInstance()->getIdentity();
$username = $identity->username;
$auth_model = Model_Auth_General::getAuthModel();
/* Before we do anything, test to make sure we've passed a VALID QUIZ which WE ARE ENTITLED to sit. */
$quiz_id = $this->_getParam("quiz");
if (is_null($quiz_id)) {
throw new Exception("No quiz was passed. Cannot continue.");
}
$vQuiz = Model_Quiz_Quiz::fromID($quiz_id);
if ($vQuiz == null) {
throw new Exception("Quiz ID passed was invalid. Cannot continue.");
}
$mFinished = false;
$mMarking = false;
//Permissions
if ($auth_model->userInGroup($username, $vQuiz->getPermissions_group()) && $vQuiz->getOpen_date() <= strtotime("now")) {
//Have we run out of attempts?
$vAttempts = Model_Quiz_QuizAttempt::getAllFromUser($username, $vQuiz);
if (sizeof($vAttempts) >= $vQuiz->getMax_attempts()) {
//It is possible that we're on our last attempt, and that it's "in progress"...check
$bInProgress = false;
foreach ($vAttempts as $vAttempt) {
if ($vAttempt->getDate_finished() == null) {
$bInProgress = true;
}
}
if (!$bInProgress) {
throw new Exception("You've exceeded your maximum attempts for this quiz. Cannot continue");
}
}
} else {
if (!$this->view->is_admin) {
throw new Exception("Insufficient Permissions to take this quiz / Quiz not open yet");
}
$vAttempts = Model_Quiz_QuizAttempt::getAllFromUser($username, $vQuiz);
}
/* Ok. We're allowed to TAKE the quiz. Are we resuming, or starting a new one? */
$mQuizAttempt = null;
if (is_array($vAttempts)) {
foreach ($vAttempts as $vAttempt) {
if ($vAttempt->getDate_finished() == null) {
$mQuizAttempt = $vAttempt;
break;
}
}
//End Foreach
}
//End If
if ($mQuizAttempt == null) {
$mQuizAttempt = Model_Quiz_QuizAttempt::fromScratch(strtotime("now"), $vQuiz, $username);
}
/* Calculate the total questions needed for this quiz */
$vTCs = $vQuiz->getTestedConcepts();
$vTotalQuestions = 0;
foreach ($vTCs as $vTC) {
$vTotalQuestions = $vTotalQuestions + $vTC->getNumber_tested();
}
/* We have our quizAttempt ready to go. Now we look to see if we're resuming a question or not */
$mQuestionAttempt = $mQuizAttempt->getLastIncompleteQuestion();
if (is_object($mQuestionAttempt) && !$mQuestionAttempt->isValid()) {
$mQuestionAttempt->destroy();
// Remove the Question attempt (Database was reinitialised or something)
$mQuestionAttempt = null;
}
if ($mQuestionAttempt != null) {
/* Are we getting an ANSWER for this question? */
if (array_key_exists("marking", $_POST) && $_POST['marking'] == "1") {
/* Mark it */
$mMarking = true;
}
/* If we reach here, the page has probably been refreshed. We just re-display the last question */
} else {
/* Have we finished this quiz? */
if ($mQuizAttempt->getQuestionAttemptCount() >= $vTotalQuestions) {
//Close this attempt and display a result later on down the page
$mQuizAttempt->setDate_finished(strtotime("now"));
//Calculate and store the final score
$mQuizAttempt->setTotal_score($mQuizAttempt->getTotal_score());
$mFinished = true;
} else {
/* QuizAttempt isn't finished... Fetch a questionBase */
$vQuestionBase = Model_Shell_QuestionChooser::select_next_question($mQuizAttempt, true);
/* Make a GeneratedQuestion */
$vCounter = 0;
//Make sure we don't get any fluke no-text answers
while ($vCounter < 3) {
Model_Shell_Debug::getInstance()->log("vQuestionBase: " . isset($vQuestionBase));
Model_Shell_Debug::getInstance()->log("Generating... from " . $vQuestionBase->getXml());
$vGen = Model_Quiz_GeneratedQuestion::fromQuestionBase($vQuestionBase);
if ($vGen->getCorrect_answer() != "" && $vGen->getCorrect_answer() != "\r\n") {
break;
} else {
$vGen->remove();
}
$vCounter++;
}
if ($vGen->getCorrect_answer() == "" || $vGen->getCorrect_answer() == "\r\n") {
throw new Exception("Error. While generating a question for you, blank answers appeared > 3 times. This should never happen. Either try to refresh this page, or consult your lecturer...");
}
/* Make a QuestionAttempt */
$mQuestionAttempt = Model_Quiz_QuestionAttempt::fromScratch($vQuestionBase, strtotime("now"), strtotime("now"), $mQuizAttempt, $vGen);
}
//End-if_finished_quizAttempt
}
// Pass all relevant information to the view
$this->view->quiz = $vQuiz;
$this->view->question_attempt = $mQuestionAttempt;
$this->view->finished = $mFinished;
$this->view->marking = $mMarking;
$this->view->mQuizAttempt = $mQuizAttempt;
$this->view->vTotalQuestions = $vTotalQuestions;
}
/**
* This action is the quiz shell.
* It ensures permissions, creates new attempts etc etc.
*
* @author Ben Evans
*/
public function attemptAction()
{
Model_Shell_Debug::getInstance()->log("User Entered the Attempt Action");
$identity = Zend_Auth::getInstance()->getIdentity();
$username = $identity->username;
$auth_model = Model_Auth_General::getAuthModel();
/* Before we do anything, test to make sure we've passed a VALID QUIZ which WE ARE ENTITLED to sit. */
$quiz = $this->findQuiz($this->_getParam("quiz"));
$finished = false;
$marking = false;
$now = strtotime("now");
// Permissions
$is_open = $quiz->getOpen_date() <= $now;
if ($auth_model->userInGroup($username, $quiz->getPermissions_group()) && $is_open && !$quiz->hasPendingPrerequisite($username)) {
// Have we run out of attempts?
$quizAttempts = Model_Quiz_QuizAttempt::getAllFromUser($username, $quiz);
if (sizeof($quizAttempts) >= $quiz->getMax_attempts()) {
// It is possible that we're on our last attempt, and that it's "in progress"...check
$quizAttempt = $this->findQuizAttemptInProgress($quizAttempts);
if (!$quizAttempt) {
throw new Exception("You've exceeded your maximum attempts for this quiz. Cannot continue");
}
}
} else {
if (!$this->view->is_admin) {
throw new Exception("Insufficient Permissions to take this quiz / Quiz not open yet / Prerequisites incomplete.");
}
$quizAttempts = Model_Quiz_QuizAttempt::getAllFromUser($username, $quiz);
}
/* Ok. We're allowed to TAKE the quiz. Are we resuming, or starting a new one? */
$quizAttempt = $this->findQuizAttemptInProgress($quizAttempts);
if ($quizAttempt == null) {
$quizAttempt = Model_Quiz_QuizAttempt::fromScratch($now, $quiz, $username);
}
$total_questions = $quiz->getTotalQuestions();
/* We have our quizAttempt ready to go. Now we look to see if we're resuming a question or not */
$questionAttempt = $quizAttempt->getLastIncompleteQuestion();
if (is_object($questionAttempt) && !$questionAttempt->isValid()) {
$questionAttempt->destroy();
// Remove the Question attempt (Database was reinitialised or something)
$questionAttempt = null;
}
if ($questionAttempt != null) {
/* Are we getting an ANSWER for this question? */
//if (array_key_exists("marking", $_POST) && $_POST['marking'] == "1") {
if (1 == $this->getRequest()->getPost('marking')) {
/* Mark it */
$marking = true;
}
My_Logger::log("Marking is {$marking}");
/* If we reach here, the page has probably been refreshed. We just re-display the last question */
} else {
/* Have we finished this quiz? */
if ($quizAttempt->getQuestionAttemptCount() >= $total_questions) {
// Close this attempt and display a result later on down the page
$quizAttempt->setDate_finished($now);
// Calculate and store the final score
$quizAttempt->setTotal_score($quizAttempt->getTotal_score());
$finished = true;
} else {
/* Make a QuestionAttempt */
$questionAttempt = $this->makeQuestionAttempt($quizAttempt, $now);
}
}
// Pass all relevant information to the view
$this->view->setEscape('htmlentities');
$this->view->quiz = $quiz;
$this->view->question_attempt = $questionAttempt;
$this->view->finished = $finished;
$this->view->marking = $marking;
$this->view->mQuizAttempt = $quizAttempt;
$this->view->vTotalQuestions = $total_questions;
$this->view->setEscape('htmlspecialchars_decode');
}
/**
* Shows the Hall of Fame for the Logged in User
*
* @return void
* @author Ben Evans
*/
public function halloffameAction()
{
$this->view->title = "Hall of Fame";
$this->view->headTitle("Hall of Fame");
$identity = Zend_Auth::getInstance()->getIdentity();
$auth_model = Model_Auth_General::getAuthModel();
//Firstly, we have to get the quizzes that we have access to
$vQuizzes = Model_Quiz_Quiz::getAll(true);
$vAvailable = array();
/* Make sure you have permission */
foreach ($vQuizzes as $vQuiz) {
if ($this->view->is_admin) {
$vAvailable[] = $vQuiz;
} else {
if ($auth_model->userInGroup($identity->username, $vQuiz->getPermissions_group()) && $vQuiz->getOpen_date() <= strtotime("now")) {
$vAvailable[] = $vQuiz;
}
}
}
/* Any Quizzes available? */
$quiz_rows = array();
if (sizeof($vAvailable) != 0) {
foreach ($vAvailable as $vQuiz) {
$quiz_row = array();
$quiz_row['name'] = $vQuiz->getName();
$vAttempts = $vQuiz->getQuizAttempts();
$vPassed = array();
if (sizeof($vAttempts) > 0) {
foreach ($vAttempts as $vAttempt) {
//Make sure we're only looking at people who've passed
$vTotalScore = $vAttempt->getTotal_score();
//echo "Comparing " . $vTotalScore . "/". $vQuiz->getTotalQuestions() ." with " . $vQuiz->getPercentage_pass() . "% (".$vAttempt->getID().")<br/>";
if ($vTotalScore / $vQuiz->getTotalQuestions() * 100 >= $vQuiz->getPercentage_pass() && $vAttempt->getDate_finished() != null) {
//echo "Added.<br/>";
$vPassed[] = $vAttempt;
}
}
}
//Did anyone pass?
if (sizeof($vPassed) > 0) {
//Sort results first
usort($vPassed, "sort_by_score");
//Truncate the array if necessary
if (sizeof($vPassed) > MAX_HALLOFFAME) {
array_splice($vPassed, 0, MAX_HALLOFFAME);
}
// And now record the scores
$quiz_row['scores'] = array();
//Now output the scores
foreach ($vPassed as $vp) {
$score_row = array("name" => $vp->getAd_user_cachesamaccountname(), "score" => $vp->getTotal_score(), "time" => $vp->getDate_finished() - $vp->getDate_started());
$quiz_row['scores'][] = $score_row;
}
}
$quiz_rows[] = $quiz_row;
}
//End_foreach_quiz
}
$this->view->quiz_rows = $quiz_rows;
}
