/** * In single-page quiz mode, check the answers that have been provided and update the status in the * database. * * @param Array $potentialAnswers The potential answers that need checking. * * @return Boolean Returns true when we have all of our answers, and we're allowed to carry on for grading. */ function check_quizzes_canWeContinue_checkAnswersFromOnePageQuiz($potentialAnswers) { $resultsList = array('answer_list' => array(), 'wrong_answer_list' => array(), 'error_answer_list' => array()); // ### 1 - Extract a list of actual answers from the potential answers. $resultsList = $this->check_quizzes_canWeContinue_extractAnswerData($potentialAnswers); // ### 2 - Save the progress so far. This updates the internal progress variable too. No grading goes on // but it stores the answers to be graded in the next bit of code. $this->unchecked_QuizAnswersToGrade = $resultsList; // ### 3 - Has the timer expired? If so, then do no further checking and return true too allow the code // to continue if ('expired' == WPCW_arrays_getValue($potentialAnswers, 'timerexpired')) { return true; } $answerCountSoFar = count($resultsList['answer_list']); // ### 4 - See if we expect uploads, because that may explain the difference in answers v.s. expected answer counts if we're // paging and now on the final review page. Uploads are a special case, and we add any missing ones back from what's been saved. if ($this->unitQuizDetails->want_uploads) { foreach ($this->unitQuizDetails->questions as $questionID => $questionDetails) { // Got an upload question where the answer is not in the final count if ('upload' == $questionDetails->question_type && !isset($resultsList['answer_list'][$questionID]) && isset($this->unitQuizProgress->quiz_data[$questionID])) { // Update internal variable of data we have, as we'll need this for saving $this->unchecked_QuizAnswersToGrade['answer_list'][$questionID] = $this->unitQuizProgress->quiz_data[$questionID]['their_answer_raw']; $answerCountSoFar++; } } } // ### 5 - Check that we have enough answers given how many questions there are. // If there are not enough answers, then re-render the form with the answered questions // marked, and highlight the fields that have errors. if ($this->unitQuizDetails->questions && $answerCountSoFar < count($this->unitQuizDetails->questions)) { // Error - not all questions are answered echo WPCW_UnitFrontend::message_createMessage_error(__('Please provide an answer for all of the questions on this page.', 'wp_courseware')); // This will trigger the form to show again with missing answers, using the ansers the user provided // through what has been stored in $this->unchecked_QuizAnswersToGrade // User may not continue - as quiz is not complete. return false; } return true; }
/** * Function called when user starting a quiz and needs to kick off the timer. */ function WPCW_AJAX_units_handleQuizTimerBegin() { // Security check if (!wp_verify_nonce(WPCW_arrays_getValue($_POST, 'progress_nonce'), 'wpcw-progress-nonce')) { die(__('Security check failed!', 'wp_courseware')); } // Get unit and quiz ID $unitID = intval(WPCW_arrays_getValue($_POST, 'unitid')); $quizID = intval(WPCW_arrays_getValue($_POST, 'quizid')); // Get the post object for this quiz item. $post = get_post($unitID); if (!$post) { echo WPCW_UnitFrontend::message_createMessage_error(__('Error - could not start the timer for the quiz.', 'wp_courseware') . ' ' . __('Could not find training unit.', 'wp_courseware')); die; } // Initalise the unit details $fe = new WPCW_UnitFrontend($post); // #### Get associated data for this unit. No course/module data, then it's not a unit if (!$fe->check_unit_doesUnitHaveParentData()) { echo WPCW_UnitFrontend::message_createMessage_error(__('Error - could not start the timer for the quiz.', 'wp_courseware') . ' ' . __('Could not find course details for unit.', 'wp_courseware')); die; } // #### User not allowed access to content if (!$fe->check_user_canUserAccessCourse()) { echo $fe->message_user_cannotAccessCourse(); die; } // #### See if we're in a position to retake this quiz? if (!$fe->check_quizzes_canUserRequestRetake()) { echo WPCW_UnitFrontend::message_createMessage_error(__('Error - could not start the timer for the quiz.', 'wp_courseware') . ' ' . __('You are not permitted to retake this quiz.', 'wp_courseware')); die; } // Trigger the upgrade to progress so that we can start the quiz, and trigger the timer. $fe->update_quizzes_beginQuiz(); // Only complete if allowed to continue. echo $fe->render_detailsForUnit(false, true); die; }