Current Path : C:/Users/Mahmood/Desktop/moodle/mod/quiz/ |
Current File : C:/Users/Mahmood/Desktop/moodle/mod/quiz/view.php |
<?php // This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. /** * This page is the entry page into the quiz UI. Displays information about the * quiz to students and teachers, and lets students see their previous attempts. * * @package mod_quiz * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com} * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ require_once(__DIR__ . '/../../config.php'); require_once($CFG->libdir.'/gradelib.php'); require_once($CFG->dirroot.'/mod/quiz/locallib.php'); require_once($CFG->libdir . '/completionlib.php'); require_once($CFG->dirroot . '/course/format/lib.php'); $id = optional_param('id', 0, PARAM_INT); // Course Module ID, or ... $q = optional_param('q', 0, PARAM_INT); // Quiz ID. if ($id) { if (!$cm = get_coursemodule_from_id('quiz', $id)) { print_error('invalidcoursemodule'); } if (!$course = $DB->get_record('course', array('id' => $cm->course))) { print_error('coursemisconf'); } } else { if (!$quiz = $DB->get_record('quiz', array('id' => $q))) { print_error('invalidquizid', 'quiz'); } if (!$course = $DB->get_record('course', array('id' => $quiz->course))) { print_error('invalidcourseid'); } if (!$cm = get_coursemodule_from_instance("quiz", $quiz->id, $course->id)) { print_error('invalidcoursemodule'); } } // Check login and get context. require_login($course, false, $cm); $context = context_module::instance($cm->id); require_capability('mod/quiz:view', $context); // Cache some other capabilities we use several times. $canattempt = has_capability('mod/quiz:attempt', $context); $canreviewmine = has_capability('mod/quiz:reviewmyattempts', $context); $canpreview = has_capability('mod/quiz:preview', $context); // Create an object to manage all the other (non-roles) access rules. $timenow = time(); $quizobj = quiz::create($cm->instance, $USER->id); $accessmanager = new quiz_access_manager($quizobj, $timenow, has_capability('mod/quiz:ignoretimelimits', $context, null, false)); $quiz = $quizobj->get_quiz(); // Trigger course_module_viewed event and completion. quiz_view($quiz, $course, $cm, $context); // Initialize $PAGE, compute blocks. $PAGE->set_url('/mod/quiz/view.php', array('id' => $cm->id)); // Create view object which collects all the information the renderer will need. $viewobj = new mod_quiz_view_object(); $viewobj->accessmanager = $accessmanager; $viewobj->canreviewmine = $canreviewmine || $canpreview; // Get this user's attempts. $attempts = quiz_get_user_attempts($quiz->id, $USER->id, 'finished', true); $lastfinishedattempt = end($attempts); $unfinished = false; $unfinishedattemptid = null; if ($unfinishedattempt = quiz_get_user_attempt_unfinished($quiz->id, $USER->id)) { $attempts[] = $unfinishedattempt; // If the attempt is now overdue, deal with that - and pass isonline = false. // We want the student notified in this case. $quizobj->create_attempt_object($unfinishedattempt)->handle_if_time_expired(time(), false); $unfinished = $unfinishedattempt->state == quiz_attempt::IN_PROGRESS || $unfinishedattempt->state == quiz_attempt::OVERDUE; if (!$unfinished) { $lastfinishedattempt = $unfinishedattempt; } $unfinishedattemptid = $unfinishedattempt->id; $unfinishedattempt = null; // To make it clear we do not use this again. } $numattempts = count($attempts); $viewobj->attempts = $attempts; $viewobj->attemptobjs = array(); foreach ($attempts as $attempt) { $viewobj->attemptobjs[] = new quiz_attempt($attempt, $quiz, $cm, $course, false); } // Work out the final grade, checking whether it was overridden in the gradebook. if (!$canpreview) { $mygrade = quiz_get_best_grade($quiz, $USER->id); } else if ($lastfinishedattempt) { // Users who can preview the quiz don't get a proper grade, so work out a // plausible value to display instead, so the page looks right. $mygrade = quiz_rescale_grade($lastfinishedattempt->sumgrades, $quiz, false); } else { $mygrade = null; } $mygradeoverridden = false; $gradebookfeedback = ''; $grading_info = grade_get_grades($course->id, 'mod', 'quiz', $quiz->id, $USER->id); if (!empty($grading_info->items)) { $item = $grading_info->items[0]; if (isset($item->grades[$USER->id])) { $grade = $item->grades[$USER->id]; if ($grade->overridden) { $mygrade = $grade->grade + 0; // Convert to number. $mygradeoverridden = true; } if (!empty($grade->str_feedback)) { $gradebookfeedback = $grade->str_feedback; } } } $title = $course->shortname . ': ' . format_string($quiz->name); $PAGE->set_title($title); $PAGE->set_heading($course->fullname); $output = $PAGE->get_renderer('mod_quiz'); // Print table with existing attempts. if ($attempts) { // Work out which columns we need, taking account what data is available in each attempt. list($someoptions, $alloptions) = quiz_get_combined_reviewoptions($quiz, $attempts); $viewobj->attemptcolumn = $quiz->attempts != 1; $viewobj->gradecolumn = $someoptions->marks >= question_display_options::MARK_AND_MAX && quiz_has_grades($quiz); $viewobj->markcolumn = $viewobj->gradecolumn && ($quiz->grade != $quiz->sumgrades); $viewobj->overallstats = $lastfinishedattempt && $alloptions->marks >= question_display_options::MARK_AND_MAX; $viewobj->feedbackcolumn = quiz_has_feedback($quiz) && $alloptions->overallfeedback; } $viewobj->timenow = $timenow; $viewobj->numattempts = $numattempts; $viewobj->mygrade = $mygrade; $viewobj->moreattempts = $unfinished || !$accessmanager->is_finished($numattempts, $lastfinishedattempt); $viewobj->mygradeoverridden = $mygradeoverridden; $viewobj->gradebookfeedback = $gradebookfeedback; $viewobj->lastfinishedattempt = $lastfinishedattempt; $viewobj->canedit = has_capability('mod/quiz:manage', $context); $viewobj->editurl = new moodle_url('/mod/quiz/edit.php', array('cmid' => $cm->id)); $viewobj->backtocourseurl = new moodle_url('/course/view.php', array('id' => $course->id)); $viewobj->startattempturl = $quizobj->start_attempt_url(); if ($accessmanager->is_preflight_check_required($unfinishedattemptid)) { $viewobj->preflightcheckform = $accessmanager->get_preflight_check_form( $viewobj->startattempturl, $unfinishedattemptid); } $viewobj->popuprequired = $accessmanager->attempt_must_be_in_popup(); $viewobj->popupoptions = $accessmanager->get_popup_options(); // Display information about this quiz. $viewobj->infomessages = $viewobj->accessmanager->describe_rules(); if ($quiz->attempts != 1) { $viewobj->infomessages[] = get_string('gradingmethod', 'quiz', quiz_get_grading_option_name($quiz->grademethod)); } // Determine wheter a start attempt button should be displayed. $viewobj->quizhasquestions = $quizobj->has_questions(); $viewobj->preventmessages = array(); if (!$viewobj->quizhasquestions) { $viewobj->buttontext = ''; } else { if ($unfinished) { if ($canattempt) { $viewobj->buttontext = get_string('continueattemptquiz', 'quiz'); } else if ($canpreview) { $viewobj->buttontext = get_string('continuepreview', 'quiz'); } } else { if ($canattempt) { $viewobj->preventmessages = $viewobj->accessmanager->prevent_new_attempt( $viewobj->numattempts, $viewobj->lastfinishedattempt); if ($viewobj->preventmessages) { $viewobj->buttontext = ''; } else if ($viewobj->numattempts == 0) { $viewobj->buttontext = get_string('attemptquiznow', 'quiz'); } else { $viewobj->buttontext = get_string('reattemptquiz', 'quiz'); } } else if ($canpreview) { $viewobj->buttontext = get_string('previewquiznow', 'quiz'); } } // If, so far, we think a button should be printed, so check if they will be // allowed to access it. if ($viewobj->buttontext) { if (!$viewobj->moreattempts) { $viewobj->buttontext = ''; } else if ($canattempt && $viewobj->preventmessages = $viewobj->accessmanager->prevent_access()) { $viewobj->buttontext = ''; } } } $viewobj->showbacktocourse = ($viewobj->buttontext === '' && course_get_format($course)->has_view_page()); echo $OUTPUT->header(); if (isguestuser()) { // Guests can't do a quiz, so offer them a choice of logging in or going back. echo $output->view_page_guest($course, $quiz, $cm, $context, $viewobj->infomessages); } else if (!isguestuser() && !($canattempt || $canpreview || $viewobj->canreviewmine)) { // If they are not enrolled in this course in a good enough role, tell them to enrol. echo $output->view_page_notenrolled($course, $quiz, $cm, $context, $viewobj->infomessages); } else { echo $output->view_page($course, $quiz, $cm, $context, $viewobj); } echo $OUTPUT->footer();