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602 lines
27 KiB
PHP
602 lines
27 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Displays the lesson statistics.
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*
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* @package mod
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* @subpackage lesson
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* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or late
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**/
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require_once('../../config.php');
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require_once($CFG->dirroot.'/mod/lesson/locallib.php');
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$id = required_param('id', PARAM_INT); // Course Module ID
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$pageid = optional_param('pageid', null, PARAM_INT); // Lesson Page ID
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$action = optional_param('action', 'reportoverview', PARAM_ALPHA); // action to take
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$nothingtodisplay = false;
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$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
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$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
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$lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
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require_login($course, false, $cm);
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$context = context_module::instance($cm->id);
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require_capability('mod/lesson:manage', $context);
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$ufields = user_picture::fields('u'); // These fields are enough
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$params = array("lessonid" => $lesson->id);
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list($sort, $sortparams) = users_order_by_sql('u');
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$params = array_merge($params, $sortparams);
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// TODO: Improve this. Fetching all students always is crazy!
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if (!empty($cm->groupingid)) {
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$params["groupingid"] = $cm->groupingid;
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$sql = "SELECT DISTINCT $ufields
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FROM {lesson_attempts} a
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INNER JOIN {user} u ON u.id = a.userid
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INNER JOIN {groups_members} gm ON gm.userid = u.id
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INNER JOIN {groupings_groups} gg ON gm.groupid = gg.groupid
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WHERE a.lessonid = :lessonid AND
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gg.groupingid = :groupingid
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ORDER BY $sort";
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} else {
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$sql = "SELECT DISTINCT $ufields
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FROM {user} u,
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{lesson_attempts} a
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WHERE a.lessonid = :lessonid and
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u.id = a.userid
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ORDER BY $sort";
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}
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if (! $students = $DB->get_records_sql($sql, $params)) {
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$nothingtodisplay = true;
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}
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$url = new moodle_url('/mod/lesson/report.php', array('id'=>$id));
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if ($action !== 'reportoverview') {
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$url->param('action', $action);
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}
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if ($pageid !== null) {
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$url->param('pageid', $pageid);
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}
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$PAGE->set_url($url);
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if ($action == 'reportoverview') {
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$PAGE->navbar->add(get_string('reports', 'lesson'));
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$PAGE->navbar->add(get_string('overview', 'lesson'));
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}
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$lessonoutput = $PAGE->get_renderer('mod_lesson');
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if (! $attempts = $DB->get_records('lesson_attempts', array('lessonid' => $lesson->id), 'timeseen')) {
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$nothingtodisplay = true;
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}
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if (! $grades = $DB->get_records('lesson_grades', array('lessonid' => $lesson->id), 'completed')) {
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$grades = array();
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}
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if (! $times = $DB->get_records('lesson_timer', array('lessonid' => $lesson->id), 'starttime')) {
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$times = array();
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}
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if ($nothingtodisplay) {
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echo $lessonoutput->header($lesson, $cm, $action, false, null, get_string('nolessonattempts', 'lesson'));
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echo $OUTPUT->notification(get_string('nolessonattempts', 'lesson'));
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echo $OUTPUT->footer();
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exit();
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}
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if ($action === 'delete') {
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/// Process any form data before fetching attempts, grades and times
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if (has_capability('mod/lesson:edit', $context) and $form = data_submitted() and confirm_sesskey()) {
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/// Cycle through array of userids with nested arrays of tries
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if (!empty($form->attempts)) {
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foreach ($form->attempts as $userid => $tries) {
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// Modifier IS VERY IMPORTANT! What does it do?
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// Well, it is for when you delete multiple attempts for the same user.
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// If you delete try 1 and 3 for a user, then after deleting try 1, try 3 then
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// becomes try 2 (because try 1 is gone and all tries after try 1 get decremented).
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// So, the modifier makes sure that the submitted try refers to the current try in the
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// database - hope this all makes sense :)
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$modifier = 0;
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foreach ($tries as $try => $junk) {
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$try -= $modifier;
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/// Clean up the timer table by removing using the order - this is silly, it should be linked to specific attempt (skodak)
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$params = array ("userid" => $userid, "lessonid" => $lesson->id);
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$timers = $DB->get_records_sql("SELECT id FROM {lesson_timer}
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WHERE userid = :userid AND lessonid = :lessonid
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ORDER BY starttime", $params, $try, 1);
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if ($timers) {
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$timer = reset($timers);
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$DB->delete_records('lesson_timer', array('id' => $timer->id));
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}
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/// Remove the grade from the grades and high_scores tables - this is silly, it should be linked to specific attempt (skodak)
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$grades = $DB->get_records_sql("SELECT id FROM {lesson_grades}
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WHERE userid = :userid AND lessonid = :lessonid
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ORDER BY completed", $params, $try, 1);
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if ($grades) {
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$grade = reset($grades);
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$DB->delete_records('lesson_grades', array('id' => $grade->id));
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$DB->delete_records('lesson_high_scores', array('gradeid' => $grade->id, 'lessonid' => $lesson->id, 'userid' => $userid));
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}
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/// Remove attempts and update the retry number
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$DB->delete_records('lesson_attempts', array('userid' => $userid, 'lessonid' => $lesson->id, 'retry' => $try));
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$DB->execute("UPDATE {lesson_attempts} SET retry = retry - 1 WHERE userid = ? AND lessonid = ? AND retry > ?", array($userid, $lesson->id, $try));
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/// Remove seen branches and update the retry number
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$DB->delete_records('lesson_branch', array('userid' => $userid, 'lessonid' => $lesson->id, 'retry' => $try));
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$DB->execute("UPDATE {lesson_branch} SET retry = retry - 1 WHERE userid = ? AND lessonid = ? AND retry > ?", array($userid, $lesson->id, $try));
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/// update central gradebook
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lesson_update_grades($lesson, $userid);
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$modifier++;
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}
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}
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}
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}
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redirect(new moodle_url($PAGE->url, array('action'=>'reportoverview')));
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} else if ($action === 'reportoverview') {
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/**************************************************************************
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this action is for default view and overview view
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**************************************************************************/
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echo $lessonoutput->header($lesson, $cm, $action, false, null, get_string('overview', 'lesson'));
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$course_context = context_course::instance($course->id);
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if (has_capability('gradereport/grader:view', $course_context) && has_capability('moodle/grade:viewall', $course_context)) {
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$seeallgradeslink = new moodle_url('/grade/report/grader/index.php', array('id'=>$course->id));
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$seeallgradeslink = html_writer::link($seeallgradeslink, get_string('seeallcoursegrades', 'grades'));
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echo $OUTPUT->box($seeallgradeslink, 'allcoursegrades');
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}
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$studentdata = array();
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// build an array for output
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foreach ($attempts as $attempt) {
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// if the user is not in the array or if the retry number is not in the sub array, add the data for that try.
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if (!array_key_exists($attempt->userid, $studentdata) || !array_key_exists($attempt->retry, $studentdata[$attempt->userid])) {
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// restore/setup defaults
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$n = 0;
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$timestart = 0;
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$timeend = 0;
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$usergrade = null;
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// search for the grade record for this try. if not there, the nulls defined above will be used.
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foreach($grades as $grade) {
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// check to see if the grade matches the correct user
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if ($grade->userid == $attempt->userid) {
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// see if n is = to the retry
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if ($n == $attempt->retry) {
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// get grade info
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$usergrade = round($grade->grade, 2); // round it here so we only have to do it once
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break;
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}
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$n++; // if not equal, then increment n
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}
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}
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$n = 0;
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// search for the time record for this try. if not there, the nulls defined above will be used.
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foreach($times as $time) {
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// check to see if the grade matches the correct user
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if ($time->userid == $attempt->userid) {
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// see if n is = to the retry
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if ($n == $attempt->retry) {
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// get grade info
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$timeend = $time->lessontime;
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$timestart = $time->starttime;
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break;
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}
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$n++; // if not equal, then increment n
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}
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}
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// build up the array.
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// this array represents each student and all of their tries at the lesson
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$studentdata[$attempt->userid][$attempt->retry] = array( "timestart" => $timestart,
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"timeend" => $timeend,
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"grade" => $usergrade,
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"try" => $attempt->retry,
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"userid" => $attempt->userid);
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}
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}
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// set all the stats variables
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$numofattempts = 0;
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$avescore = 0;
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$avetime = 0;
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$highscore = null;
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$lowscore = null;
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$hightime = null;
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$lowtime = null;
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$table = new html_table();
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// set up the table object
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$table->head = array(get_string('name'), get_string('attempts', 'lesson'), get_string('highscore', 'lesson'));
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$table->align = array('center', 'left', 'left');
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$table->wrap = array('nowrap', 'nowrap', 'nowrap');
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$table->attributes['class'] = 'standardtable generaltable';
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$table->size = array(null, '70%', null);
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// print out the $studentdata array
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// going through each student that has attempted the lesson, so, each student should have something to be displayed
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foreach ($students as $student) {
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// check to see if the student has attempts to print out
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if (array_key_exists($student->id, $studentdata)) {
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// set/reset some variables
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$attempts = array();
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// gather the data for each user attempt
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$bestgrade = 0;
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$bestgradefound = false;
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// $tries holds all the tries/retries a student has done
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$tries = $studentdata[$student->id];
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$studentname = "{$student->lastname}, $student->firstname";
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foreach ($tries as $try) {
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// start to build up the checkbox and link
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if (has_capability('mod/lesson:edit', $context)) {
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$temp = '<input type="checkbox" id="attempts" name="attempts['.$try['userid'].']['.$try['try'].']" /> ';
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} else {
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$temp = '';
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}
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$temp .= "<a href=\"report.php?id=$cm->id&action=reportdetail&userid=".$try['userid'].'&try='.$try['try'].'">';
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if ($try["grade"] !== null) { // if null then not done yet
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// this is what the link does when the user has completed the try
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$timetotake = $try["timeend"] - $try["timestart"];
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$temp .= $try["grade"]."%";
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$bestgradefound = true;
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if ($try["grade"] > $bestgrade) {
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$bestgrade = $try["grade"];
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}
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$temp .= " ".userdate($try["timestart"]);
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$temp .= ", (".format_time($timetotake).")</a>";
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} else {
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// this is what the link does/looks like when the user has not completed the try
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$temp .= get_string("notcompleted", "lesson");
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$temp .= " ".userdate($try["timestart"])."</a>";
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$timetotake = null;
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}
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// build up the attempts array
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$attempts[] = $temp;
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// run these lines for the stats only if the user finnished the lesson
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if ($try["grade"] !== null) {
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$numofattempts++;
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$avescore += $try["grade"];
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$avetime += $timetotake;
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if ($try["grade"] > $highscore || $highscore === null) {
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$highscore = $try["grade"];
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}
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if ($try["grade"] < $lowscore || $lowscore === null) {
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$lowscore = $try["grade"];
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}
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if ($timetotake > $hightime || $hightime == null) {
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$hightime = $timetotake;
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}
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if ($timetotake < $lowtime || $lowtime == null) {
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$lowtime = $timetotake;
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}
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}
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}
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// get line breaks in after each attempt
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$attempts = implode("<br />\n", $attempts);
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// add it to the table data[] object
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$table->data[] = array($studentname, $attempts, $bestgrade."%");
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}
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}
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// print it all out !
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if (has_capability('mod/lesson:edit', $context)) {
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echo "<form id=\"theform\" method=\"post\" action=\"report.php\">\n
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<input type=\"hidden\" name=\"sesskey\" value=\"".sesskey()."\" />\n
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<input type=\"hidden\" name=\"id\" value=\"$cm->id\" />\n";
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}
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echo html_writer::table($table);
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if (has_capability('mod/lesson:edit', $context)) {
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$checklinks = '<a href="javascript: checkall();">'.get_string('selectall').'</a> / ';
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$checklinks .= '<a href="javascript: checknone();">'.get_string('deselectall').'</a>';
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$checklinks .= html_writer::label('action', 'menuaction', false, array('class' => 'accesshide'));
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$checklinks .= html_writer::select(array('delete' => get_string('deleteselected')), 'action', 0, array(''=>'choosedots'), array('id'=>'actionid', 'class' => 'autosubmit'));
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$PAGE->requires->yui_module('moodle-core-formautosubmit',
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'M.core.init_formautosubmit',
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array(array('selectid' => 'actionid', 'nothing' => false))
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);
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echo $OUTPUT->box($checklinks, 'center');
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echo '</form>';
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}
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// some stat calculations
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if ($numofattempts == 0) {
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$avescore = get_string("notcompleted", "lesson");
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} else {
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$avescore = format_float($avescore/$numofattempts, 2);
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}
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if ($avetime == null) {
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$avetime = get_string("notcompleted", "lesson");
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} else {
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$avetime = format_float($avetime/$numofattempts, 0);
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$avetime = format_time($avetime);
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}
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if ($hightime == null) {
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$hightime = get_string("notcompleted", "lesson");
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} else {
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$hightime = format_time($hightime);
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}
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if ($lowtime == null) {
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$lowtime = get_string("notcompleted", "lesson");
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} else {
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$lowtime = format_time($lowtime);
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}
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if ($highscore === null) {
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$highscore = get_string("notcompleted", "lesson");
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}
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if ($lowscore === null) {
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$lowscore = get_string("notcompleted", "lesson");
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}
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// output the stats
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echo $OUTPUT->heading(get_string('lessonstats', 'lesson'), 3);
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$stattable = new html_table();
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$stattable->head = array(get_string('averagescore', 'lesson'), get_string('averagetime', 'lesson'),
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get_string('highscore', 'lesson'), get_string('lowscore', 'lesson'),
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get_string('hightime', 'lesson'), get_string('lowtime', 'lesson'));
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$stattable->align = array('center', 'center', 'center', 'center', 'center', 'center');
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$stattable->wrap = array('nowrap', 'nowrap', 'nowrap', 'nowrap', 'nowrap', 'nowrap');
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$stattable->attributes['class'] = 'standardtable generaltable';
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if (is_numeric($highscore)) {
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$highscore .= '%';
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}
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if (is_numeric($lowscore)) {
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$lowscore .= '%';
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}
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$stattable->data[] = array($avescore.'%', $avetime, $highscore, $lowscore, $hightime, $lowtime);
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echo html_writer::table($stattable);
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} else if ($action === 'reportdetail') {
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/**************************************************************************
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this action is for a student detailed view and for the general detailed view
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General flow of this section of the code
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1. Generate a object which holds values for the statistics for each question/answer
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2. Cycle through all the pages to create a object. Foreach page, see if the student actually answered
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the page. Then process the page appropriatly. Display all info about the question,
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Highlight correct answers, show how the user answered the question, and display statistics
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about each page
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3. Print out info about the try (if needed)
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4. Print out the object which contains all the try info
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**************************************************************************/
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echo $lessonoutput->header($lesson, $cm, $action, false, null, get_string('detailedstats', 'lesson'));
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$course_context = context_course::instance($course->id);
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if (has_capability('gradereport/grader:view', $course_context) && has_capability('moodle/grade:viewall', $course_context)) {
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$seeallgradeslink = new moodle_url('/grade/report/grader/index.php', array('id'=>$course->id));
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$seeallgradeslink = html_writer::link($seeallgradeslink, get_string('seeallcoursegrades', 'grades'));
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echo $OUTPUT->box($seeallgradeslink, 'allcoursegrades');
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}
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$formattextdefoptions = new stdClass;
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$formattextdefoptions->para = false; //I'll use it widely in this page
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$formattextdefoptions->overflowdiv = true;
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$userid = optional_param('userid', null, PARAM_INT); // if empty, then will display the general detailed view
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$try = optional_param('try', null, PARAM_INT);
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$lessonpages = $lesson->load_all_pages();
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foreach ($lessonpages as $lessonpage) {
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if ($lessonpage->prevpageid == 0) {
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$pageid = $lessonpage->id;
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}
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}
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// now gather the stats into an object
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$firstpageid = $pageid;
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$pagestats = array();
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while ($pageid != 0) { // EOL
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$page = $lessonpages[$pageid];
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$params = array ("lessonid" => $lesson->id, "pageid" => $page->id);
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if ($allanswers = $DB->get_records_select("lesson_attempts", "lessonid = :lessonid AND pageid = :pageid", $params, "timeseen")) {
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// get them ready for processing
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$orderedanswers = array();
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foreach ($allanswers as $singleanswer) {
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// ordering them like this, will help to find the single attempt record that we want to keep.
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$orderedanswers[$singleanswer->userid][$singleanswer->retry][] = $singleanswer;
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}
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|
// this is foreach user and for each try for that user, keep one attempt record
|
|
foreach ($orderedanswers as $orderedanswer) {
|
|
foreach($orderedanswer as $tries) {
|
|
$page->stats($pagestats, $tries);
|
|
}
|
|
}
|
|
} else {
|
|
// no one answered yet...
|
|
}
|
|
//unset($orderedanswers); initialized above now
|
|
$pageid = $page->nextpageid;
|
|
}
|
|
|
|
$manager = lesson_page_type_manager::get($lesson);
|
|
$qtypes = $manager->get_page_type_strings();
|
|
|
|
$answerpages = array();
|
|
$answerpage = "";
|
|
$pageid = $firstpageid;
|
|
// cycle through all the pages
|
|
// foreach page, add to the $answerpages[] array all the data that is needed
|
|
// from the question, the users attempt, and the statistics
|
|
// grayout pages that the user did not answer and Branch, end of branch, cluster
|
|
// and end of cluster pages
|
|
while ($pageid != 0) { // EOL
|
|
$page = $lessonpages[$pageid];
|
|
$answerpage = new stdClass;
|
|
$data ='';
|
|
|
|
$answerdata = new stdClass;
|
|
// Set some defaults for the answer data.
|
|
$answerdata->score = null;
|
|
$answerdata->response = null;
|
|
$answerdata->responseformat = FORMAT_PLAIN;
|
|
|
|
$answerpage->title = format_string($page->title);
|
|
|
|
$options = new stdClass;
|
|
$options->noclean = true;
|
|
$options->overflowdiv = true;
|
|
$answerpage->contents = format_text($page->contents, $page->contentsformat, $options);
|
|
|
|
$answerpage->qtype = $qtypes[$page->qtype].$page->option_description_string();
|
|
$answerpage->grayout = $page->grayout;
|
|
$answerpage->context = $context;
|
|
|
|
if (empty($userid)) {
|
|
// there is no userid, so set these vars and display stats.
|
|
$answerpage->grayout = 0;
|
|
$useranswer = null;
|
|
} elseif ($useranswers = $DB->get_records("lesson_attempts",array("lessonid"=>$lesson->id, "userid"=>$userid, "retry"=>$try,"pageid"=>$page->id), "timeseen")) {
|
|
// get the user's answer for this page
|
|
// need to find the right one
|
|
$i = 0;
|
|
foreach ($useranswers as $userattempt) {
|
|
$useranswer = $userattempt;
|
|
$i++;
|
|
if ($lesson->maxattempts == $i) {
|
|
break; // reached maxattempts, break out
|
|
}
|
|
}
|
|
} else {
|
|
// user did not answer this page, gray it out and set some nulls
|
|
$answerpage->grayout = 1;
|
|
$useranswer = null;
|
|
}
|
|
$i = 0;
|
|
$n = 0;
|
|
$answerpages[] = $page->report_answers(clone($answerpage), clone($answerdata), $useranswer, $pagestats, $i, $n);
|
|
$pageid = $page->nextpageid;
|
|
}
|
|
|
|
/// actually start printing something
|
|
$table = new html_table();
|
|
$table->wrap = array();
|
|
$table->width = "60%";
|
|
if (!empty($userid)) {
|
|
// if looking at a students try, print out some basic stats at the top
|
|
|
|
// print out users name
|
|
//$headingobject->lastname = $students[$userid]->lastname;
|
|
//$headingobject->firstname = $students[$userid]->firstname;
|
|
//$headingobject->attempt = $try + 1;
|
|
//print_heading(get_string("studentattemptlesson", "lesson", $headingobject));
|
|
echo $OUTPUT->heading(get_string('attempt', 'lesson', $try+1), 3);
|
|
|
|
$table->head = array();
|
|
$table->align = array('right', 'left');
|
|
$table->attributes['class'] = 'compacttable generaltable';
|
|
|
|
$params = array("lessonid"=>$lesson->id, "userid"=>$userid);
|
|
if (!$grades = $DB->get_records_select("lesson_grades", "lessonid = :lessonid and userid = :userid", $params, "completed", "*", $try, 1)) {
|
|
$grade = -1;
|
|
$completed = -1;
|
|
} else {
|
|
$grade = current($grades);
|
|
$completed = $grade->completed;
|
|
$grade = round($grade->grade, 2);
|
|
}
|
|
if (!$times = $DB->get_records_select("lesson_timer", "lessonid = :lessonid and userid = :userid", $params, "starttime", "*", $try, 1)) {
|
|
$timetotake = -1;
|
|
} else {
|
|
$timetotake = current($times);
|
|
$timetotake = $timetotake->lessontime - $timetotake->starttime;
|
|
}
|
|
|
|
if ($timetotake == -1 || $completed == -1 || $grade == -1) {
|
|
$table->align = array("center");
|
|
|
|
$table->data[] = array(get_string("notcompleted", "lesson"));
|
|
} else {
|
|
$user = $students[$userid];
|
|
|
|
$gradeinfo = lesson_grade($lesson, $try, $user->id);
|
|
|
|
$table->data[] = array(get_string('name').':', $OUTPUT->user_picture($user, array('courseid'=>$course->id)).fullname($user, true));
|
|
$table->data[] = array(get_string("timetaken", "lesson").":", format_time($timetotake));
|
|
$table->data[] = array(get_string("completed", "lesson").":", userdate($completed));
|
|
$table->data[] = array(get_string('rawgrade', 'lesson').':', $gradeinfo->earned.'/'.$gradeinfo->total);
|
|
$table->data[] = array(get_string("grade", "lesson").":", $grade."%");
|
|
}
|
|
echo html_writer::table($table);
|
|
|
|
// Don't want this class for later tables
|
|
$table->attributes['class'] = '';
|
|
}
|
|
|
|
|
|
$table->align = array('left', 'left');
|
|
$table->size = array('70%', null);
|
|
$table->attributes['class'] = 'compacttable generaltable';
|
|
|
|
foreach ($answerpages as $page) {
|
|
unset($table->data);
|
|
if ($page->grayout) { // set the color of text
|
|
$fontstart = "<span class=\"dimmed\">";
|
|
$fontend = "</font>";
|
|
$fontstart2 = $fontstart;
|
|
$fontend2 = $fontend;
|
|
} else {
|
|
$fontstart = "";
|
|
$fontend = "";
|
|
$fontstart2 = "";
|
|
$fontend2 = "";
|
|
}
|
|
|
|
$table->head = array($fontstart2.$page->qtype.": ".format_string($page->title).$fontend2, $fontstart2.get_string("classstats", "lesson").$fontend2);
|
|
$table->data[] = array($fontstart.get_string("question", "lesson").": <br />".$fontend.$fontstart2.$page->contents.$fontend2, " ");
|
|
$table->data[] = array($fontstart.get_string("answer", "lesson").":".$fontend, ' ');
|
|
// apply the font to each answer
|
|
if (!empty($page->answerdata)) {
|
|
foreach ($page->answerdata->answers as $answer){
|
|
$modified = array();
|
|
foreach ($answer as $single) {
|
|
// need to apply a font to each one
|
|
$modified[] = $fontstart2.$single.$fontend2;
|
|
}
|
|
$table->data[] = $modified;
|
|
}
|
|
if (isset($page->answerdata->response)) {
|
|
$table->data[] = array($fontstart.get_string("response", "lesson").": <br />".$fontend.$fontstart2.format_text($page->answerdata->response,$page->answerdata->responseformat,$formattextdefoptions).$fontend2, " ");
|
|
}
|
|
$table->data[] = array($page->answerdata->score, " ");
|
|
} else {
|
|
$table->data[] = array(get_string('didnotanswerquestion', 'lesson'), " ");
|
|
}
|
|
echo html_writer::table($table);
|
|
}
|
|
} else {
|
|
print_error('unknowaction');
|
|
}
|
|
|
|
/// Finish the page
|
|
echo $OUTPUT->footer();
|