mirror of
https://github.com/moodle/moodle.git
synced 2025-01-18 22:08:20 +01:00
406 lines
19 KiB
PHP
406 lines
19 KiB
PHP
<?php //$Id$
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define('B_QUIZRESULTS_NAME_FORMAT_FULL', 1);
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define('B_QUIZRESULTS_NAME_FORMAT_ID', 2);
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define('B_QUIZRESULTS_NAME_FORMAT_ANON', 3);
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define('B_QUIZRESULTS_GRADE_FORMAT_PCT', 1);
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define('B_QUIZRESULTS_GRADE_FORMAT_FRA', 2);
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define('B_QUIZRESULTS_GRADE_FORMAT_ABS', 3);
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class block_quiz_results extends block_base {
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function init() {
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$this->title = get_string('formaltitle', 'block_quiz_results');
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$this->version = 2005082300;
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}
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function applicable_formats() {
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return array('course' => true, 'mod-quiz' => true);
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}
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function get_content() {
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global $USER, $CFG;
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if ($this->content !== NULL) {
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return $this->content;
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}
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$this->content = new stdClass;
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$this->content->text = '';
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$this->content->footer = '';
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if (empty($this->instance)) {
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return $this->content;
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}
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if($this->instance->pagetype == 'course-view') {
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// We need to see if we are monitoring a quiz
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$quizid = empty($this->config->quizid) ? 0 : $this->config->quizid;
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$courseid = $this->instance->pageid;
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}
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else {
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// Assuming we are displayed in the quiz view page
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$quizid = $this->instance->pageid;
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// A trick to take advantage of instance config and save queries
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if(empty($this->config->courseid)) {
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$modrecord = get_record('modules', 'name', 'quiz');
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$cmrecord = get_record('course_modules', 'module', $modrecord->id, 'instance', $quizid);
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$this->config->courseid = intval($cmrecord->course);
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$this->instance_config_commit();
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}
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$courseid = $this->config->courseid;
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}
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$context = get_context_instance(CONTEXT_COURSE, $courseid);
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if(empty($quizid)) {
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$this->content->text = get_string('error_emptyquizid', 'block_quiz_results');
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return $this->content;
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}
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// Get the quiz record
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$quiz = get_record('quiz', 'id', $quizid);
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if(empty($quiz)) {
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$this->content->text = get_string('error_emptyquizrecord', 'block_quiz_results');
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return $this->content;
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}
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// Get the grades for this quiz
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$grades = get_records('quiz_grades', 'quiz', $quizid, 'grade, timemodified DESC');
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if(empty($grades)) {
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// No grades, sorry
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// The block will hide itself in this case
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return $this->content;
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}
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if(empty($this->config->showbest) && empty($this->config->showworst)) {
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$this->content->text = get_string('configuredtoshownothing', 'block_quiz_results');
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return $this->content;
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}
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$groupmode = NOGROUPS;
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$best = array();
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$worst = array();
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$nameformat = intval(empty($this->config->nameformat) ? B_QUIZRESULTS_NAME_FORMAT_FULL : $this->config->nameformat);
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// If the block is configured to operate in group mode, or if the name display format
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// is other than "fullname", then we need to retrieve the full course record
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if(!empty($this->config->usegroups) || $nameformat != B_QUIZRESULTS_NAME_FORMAT_FULL) {
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$course = get_record_select('course', 'id = '.$courseid, 'groupmode, groupmodeforce, student');
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}
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if(!empty($this->config->usegroups)) {
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// The block was configured to operate in group mode
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if($course->groupmodeforce) {
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$groupmode = $course->groupmode;
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}
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else {
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$module = get_record_sql('SELECT cm.groupmode FROM '.$CFG->prefix.'modules m LEFT JOIN '.$CFG->prefix.'course_modules cm ON m.id = cm.module WHERE m.name = \'quiz\' AND cm.instance = '.$quizid);
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$groupmode = $module->groupmode;
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}
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// The actual groupmode for the quiz is now known to be $groupmode
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}
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if(has_capability('moodle/site:accessallgroups', $context) && $groupmode == SEPARATEGROUPS) {
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// We 'll make an exception in this case
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$groupmode = VISIBLEGROUPS;
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}
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switch($groupmode) {
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case VISIBLEGROUPS:
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// Display group-mode results
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$groups = get_groups($courseid);
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if(empty($groups)) {
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// No groups exist, sorry
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$this->content->text = get_string('error_nogroupsexist', 'block_quiz_results');
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return $this->content;
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}
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// Find out all the userids which have a submitted grade
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$userids = array();
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foreach($grades as $grade) {
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$userids[] = $grade->userid;
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}
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// Now find which groups these users belong in
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$groupofuser = get_records_sql(
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'SELECT m.userid, m.groupid, g.name FROM '.$CFG->prefix.'groups g LEFT JOIN '.$CFG->prefix.'groups_members m ON g.id = m.groupid '.
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'WHERE g.courseid = '.$courseid.' AND m.userid IN ('.implode(',', $userids).')'
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);
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$groupgrades = array();
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// OK... now, iterate the grades again and sum them up for each group
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foreach($grades as $grade) {
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if(isset($groupofuser[$grade->userid])) {
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// Count this result only if the user is in a group
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$groupid = $groupofuser[$grade->userid]->groupid;
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if(!isset($groupgrades[$groupid])) {
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$groupgrades[$groupid] = array('sum' => (float)$grade->grade, 'number' => 1, 'group' => $groupofuser[$grade->userid]->name);
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}
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else {
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$groupgrades[$groupid]['sum'] += $grade->grade;
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++$groupgrades[$groupid]['number'];
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}
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}
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}
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foreach($groupgrades as $groupid => $groupgrade) {
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$groupgrades[$groupid]['average'] = $groupgrades[$groupid]['sum'] / $groupgrades[$groupid]['number'];
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}
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// Sort groupgrades according to average grade, ascending
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uasort($groupgrades, create_function('$a, $b', 'if($a["average"] == $b["average"]) return 0; return ($a["average"] > $b["average"] ? 1 : -1);'));
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// How many groups do we have with graded member submissions to show?
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$numbest = empty($this->config->showbest) ? 0 : min($this->config->showbest, count($groupgrades));
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$numworst = empty($this->config->showworst) ? 0 : min($this->config->showworst, count($groupgrades) - $numbest);
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// Collect all the group results we are going to use in $best and $worst
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$remaining = $numbest;
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$groupgrade = end($groupgrades);
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while($remaining--) {
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$best[key($groupgrades)] = $groupgrade['average'];
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$groupgrade = prev($groupgrades);
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}
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$remaining = $numworst;
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$groupgrade = reset($groupgrades);
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while($remaining--) {
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$worst[key($groupgrades)] = $groupgrade['average'];
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$groupgrade = next($groupgrades);
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}
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// Ready for output!
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$gradeformat = intval(empty($this->config->gradeformat) ? B_QUIZRESULTS_GRADE_FORMAT_PCT : $this->config->gradeformat);
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if($this->instance->pagetype != 'mod-quiz-view') {
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// Don't show header and link to the quiz if we ARE at the quiz...
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$this->content->text .= '<h1><a href="'.$CFG->wwwroot.'/mod/quiz/view.php?q='.$quizid.'">'.$quiz->name.'</a></h1>';
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}
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$rank = 0;
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if(!empty($best)) {
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$this->content->text .= '<table class="grades"><caption>';
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$this->content->text .= ($numbest == 1?get_string('bestgroupgrade', 'block_quiz_results'):get_string('bestgroupgrades', 'block_quiz_results', $numbest));
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$this->content->text .= '</caption><colgroup class="number" /><colgroup class="name" /><colgroup class="grade" /><tbody>';
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foreach($best as $groupid => $averagegrade) {
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switch($nameformat) {
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case B_QUIZRESULTS_NAME_FORMAT_ANON:
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case B_QUIZRESULTS_NAME_FORMAT_ID:
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$thisname = get_string('group');
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break;
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default:
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case B_QUIZRESULTS_NAME_FORMAT_FULL:
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$thisname = '<a href="'.$CFG->wwwroot.'/course/group.php?group='.$groupid.'&id='.$courseid.'">'.$groupgrades[$groupid]['group'].'</a>';
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break;
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}
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$this->content->text .= '<tr><td>'.(++$rank).'.</td><td>'.$thisname.'</td><td>';
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switch($gradeformat) {
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case B_QUIZRESULTS_GRADE_FORMAT_FRA:
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$this->content->text .= (format_float($averagegrade,$quiz->decimalpoints).'/'.$quiz->grade);
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break;
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case B_QUIZRESULTS_GRADE_FORMAT_ABS:
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$this->content->text .= format_float($averagegrade,$quiz->decimalpoints);
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break;
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default:
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case B_QUIZRESULTS_GRADE_FORMAT_PCT:
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$this->content->text .= round((float)$averagegrade / (float)$quiz->grade * 100).'%';
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break;
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}
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$this->content->text .= '</td></tr>';
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}
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$this->content->text .= '</tbody></table>';
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}
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$rank = 0;
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if(!empty($worst)) {
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$worst = array_reverse($worst, true);
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$this->content->text .= '<table class="grades"><caption>';
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$this->content->text .= ($numworst == 1?get_string('worstgroupgrade', 'block_quiz_results'):get_string('worstgroupgrades', 'block_quiz_results', $numworst));
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$this->content->text .= '</caption><colgroup class="number" /><colgroup class="name" /><colgroup class="grade" /><tbody>';
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foreach($worst as $groupid => $averagegrade) {
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switch($nameformat) {
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case B_QUIZRESULTS_NAME_FORMAT_ANON:
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case B_QUIZRESULTS_NAME_FORMAT_ID:
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$thisname = get_string('group');
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break;
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default:
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case B_QUIZRESULTS_NAME_FORMAT_FULL:
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$thisname = '<a href="'.$CFG->wwwroot.'/course/group.php?group='.$groupid.'&id='.$courseid.'">'.$groupgrades[$groupid]['group'].'</a>';
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break;
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}
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$this->content->text .= '<tr><td>'.(++$rank).'.</td><td>'.$thisname.'</td><td>';
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switch($gradeformat) {
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case B_QUIZRESULTS_GRADE_FORMAT_FRA:
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$this->content->text .= (format_float($averagegrade,$quiz->decimalpoints).'/'.$quiz->grade);
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break;
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case B_QUIZRESULTS_GRADE_FORMAT_ABS:
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$this->content->text .= format_float($averagegrade,$quiz->decimalpoints);
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break;
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default:
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case B_QUIZRESULTS_GRADE_FORMAT_PCT:
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$this->content->text .= round((float)$averagegrade / (float)$quiz->grade * 100).'%';
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break;
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}
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$this->content->text .= '</td></tr>';
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}
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$this->content->text .= '</tbody></table>';
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}
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break;
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case SEPARATEGROUPS:
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// This is going to be just like no-groups mode, only we 'll filter
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// out the grades from people not in our group.
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if(empty($USER) || empty($USER->id)) {
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// Not logged in, so show nothing
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return $this->content;
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}
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$mygroups = get_groups($courseid, $USER->id);
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if(empty($mygroups)) {
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// Not member of a group, show nothing
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return $this->content;
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}
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$mygroupsusers = get_records_list('groups_members', 'groupid', implode(',', array_keys($mygroups)), '', 'userid, id');
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// There should be at least one user there, ourselves. So no more tests.
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// Just filter out the grades belonging to other users, and proceed as if there were no groups
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$strallowedusers = implode(',', array_keys($mygroupsusers));
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$grades = array_filter($grades, create_function('$el', '$allowed = explode(",", "'.$strallowedusers.'"); return in_array($el->userid, $allowed);'));
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// NO break; HERE, JUST GO AHEAD
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default:
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case NOGROUPS:
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// Single user mode
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$numbest = empty($this->config->showbest) ? 0 : min($this->config->showbest, count($grades));
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$numworst = empty($this->config->showworst) ? 0 : min($this->config->showworst, count($grades) - $numbest);
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// Collect all the usernames we are going to need
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$remaining = $numbest;
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$grade = end($grades);
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while($remaining--) {
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$best[$grade->userid] = $grade->id;
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$grade = prev($grades);
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}
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$remaining = $numworst;
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$grade = reset($grades);
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while($remaining--) {
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$worst[$grade->userid] = $grade->id;
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$grade = next($grades);
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}
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if(empty($best) && empty($worst)) {
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// Nothing to show, for some reason...
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return $this->content;
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}
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// Now grab all the users from the database
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$userids = array_merge(array_keys($best), array_keys($worst));
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$users = get_records_list('user', 'id', implode(',',$userids), '', 'id, firstname, lastname, idnumber');
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// Ready for output!
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$gradeformat = intval(empty($this->config->gradeformat) ? B_QUIZRESULTS_GRADE_FORMAT_PCT : $this->config->gradeformat);
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if($this->instance->pagetype != 'mod-quiz-view') {
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// Don't show header and link to the quiz if we ARE at the quiz...
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$this->content->text .= '<h1><a href="'.$CFG->wwwroot.'/mod/quiz/view.php?q='.$quizid.'">'.$quiz->name.'</a></h1>';
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}
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$rank = 0;
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if(!empty($best)) {
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$this->content->text .= '<table class="grades"><caption>';
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$this->content->text .= ($numbest == 1?get_string('bestgrade', 'block_quiz_results'):get_string('bestgrades', 'block_quiz_results', $numbest));
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$this->content->text .= '</caption><colgroup class="number" /><colgroup class="name" /><colgroup class="grade" /><tbody>';
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foreach($best as $userid => $gradeid) {
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switch($nameformat) {
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case B_QUIZRESULTS_NAME_FORMAT_ID:
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$thisname = $course->student.' '.intval($users[$userid]->idnumber);
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break;
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case B_QUIZRESULTS_NAME_FORMAT_ANON:
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$thisname = $course->student;
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break;
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default:
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case B_QUIZRESULTS_NAME_FORMAT_FULL:
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$thisname = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$userid.'&course='.$courseid.'">'.fullname($users[$userid]).'</a>';
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break;
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}
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$this->content->text .= '<tr><td>'.(++$rank).'.</td><td>'.$thisname.'</td><td>';
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switch($gradeformat) {
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case B_QUIZRESULTS_GRADE_FORMAT_FRA:
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$this->content->text .= (format_float($grades[$gradeid]->grade,$quiz->decimalpoints).'/'.$quiz->grade);
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break;
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case B_QUIZRESULTS_GRADE_FORMAT_ABS:
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$this->content->text .= format_float($grades[$gradeid]->grade,$quiz->decimalpoints);
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break;
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default:
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case B_QUIZRESULTS_GRADE_FORMAT_PCT:
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if ($quiz->grade) {
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$this->content->text .= round((float)$grades[$gradeid]->grade / (float)$quiz->grade * 100).'%';
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} else {
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$this->content->text .= '--%';
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}
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break;
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}
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$this->content->text .= '</td></tr>';
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}
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$this->content->text .= '</tbody></table>';
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}
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$rank = 0;
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if(!empty($worst)) {
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$worst = array_reverse($worst, true);
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$this->content->text .= '<table class="grades"><caption>';
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$this->content->text .= ($numworst == 1?get_string('worstgrade', 'block_quiz_results'):get_string('worstgrades', 'block_quiz_results', $numworst));
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$this->content->text .= '</caption><colgroup class="number" /><colgroup class="name" /><colgroup class="grade" /><tbody>';
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foreach($worst as $userid => $gradeid) {
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switch($nameformat) {
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case B_QUIZRESULTS_NAME_FORMAT_ID:
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$thisname = $course->student.' '.intval($users[$userid]->idnumber);
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break;
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case B_QUIZRESULTS_NAME_FORMAT_ANON:
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$thisname = $course->student;
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break;
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default:
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case B_QUIZRESULTS_NAME_FORMAT_FULL:
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$thisname = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$userid.'&course='.$courseid.'">'.fullname($users[$userid]).'</a>';
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break;
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}
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$this->content->text .= '<tr><td>'.(++$rank).'.</td><td>'.$thisname.'</td><td>';
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switch($gradeformat) {
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case B_QUIZRESULTS_GRADE_FORMAT_FRA:
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$this->content->text .= (format_float($grades[$gradeid]->grade,$quiz->decimalpoints).'/'.$quiz->grade);
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break;
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case B_QUIZRESULTS_GRADE_FORMAT_ABS:
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$this->content->text .= format_float($grades[$gradeid]->grade,$quiz->decimalpoints);
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break;
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default:
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case B_QUIZRESULTS_GRADE_FORMAT_PCT:
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$this->content->text .= round((float)$grades[$gradeid]->grade / (float)$quiz->grade * 100).'%';
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break;
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}
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$this->content->text .= '</td></tr>';
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}
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$this->content->text .= '</tbody></table>';
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}
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break;
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}
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return $this->content;
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}
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function instance_allow_multiple() {
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return true;
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}
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}
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?>
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