quiz = $quiz; $this->qmsubselect = $qmsubselect; $this->groupstudents = $groupstudents; $this->students = $students; $this->detailedmarks = $detailedmarks; $this->questions = $questions; $this->candelete = $candelete; $this->reporturl = $reporturl; $this->displayoptions = $displayoptions; $this->context = $context; } function build_table(){ global $CFG, $DB; if ($this->rawdata) { // Define some things we need later to process raw data from db. $this->strtimeformat = get_string('strftimedatetime'); parent::build_table(); //end of adding data from attempts data to table / download //now add averages at bottom of table : $params = array($this->quiz->id); $averagesql = "SELECT AVG(qg.grade) AS grade " . "FROM {quiz_grades} qg " . "WHERE quiz=?"; $this->add_separator(); if ($this->is_downloading()){ $namekey = 'lastname'; } else { $namekey = 'fullname'; } if ($this->groupstudents){ list($g_usql, $g_params) = $DB->get_in_or_equal($this->groupstudents); $groupaveragesql = $averagesql." AND qg.userid $g_usql"; $groupaverage = $DB->get_record_sql($groupaveragesql, array_merge($params, $g_params)); $groupaveragerow = array($namekey => get_string('groupavg', 'grades'), 'sumgrades' => round($groupaverage->grade, $this->quiz->decimalpoints), 'feedbacktext'=> strip_tags(quiz_report_feedback_for_grade($groupaverage->grade, $this->quiz->id))); if($this->detailedmarks && $this->qmsubselect) { $avggradebyq = quiz_get_average_grade_for_questions($this->quiz, $this->groupstudents); $groupaveragerow += quiz_format_average_grade_for_questions($avggradebyq, $this->questions, $this->quiz, $this->is_downloading()); } $this->add_data_keyed($groupaveragerow); } list($s_usql, $s_params) = $DB->get_in_or_equal($this->students); $overallaverage = $DB->get_record_sql($averagesql." AND qg.userid $s_usql", array_merge($params, $s_params)); $overallaveragerow = array($namekey => get_string('overallaverage', 'grades'), 'sumgrades' => round($overallaverage->grade, $this->quiz->decimalpoints), 'feedbacktext'=> strip_tags(quiz_report_feedback_for_grade($overallaverage->grade, $this->quiz->id))); if($this->detailedmarks && $this->qmsubselect) { $avggradebyq = quiz_get_average_grade_for_questions($this->quiz, $this->students); $overallaveragerow += quiz_format_average_grade_for_questions($avggradebyq, $this->questions, $this->quiz, $this->is_downloading()); } $this->add_data_keyed($overallaveragerow); } } function wrap_html_start(){ if (!$this->is_downloading()) { if ($this->candelete) { // Start form echo '

'; echo '

'; echo ''; echo '

'; } } } function wrap_html_finish(){ if (!$this->is_downloading()) { // Print "Select all" etc. if ($this->candelete) { $strreallydel = addslashes_js(get_string('deleteattemptcheck','quiz')); echo '

'; echo ''. get_string('selectall', 'quiz').' / '; echo ''. get_string('selectnone', 'quiz').' '; echo ' '; if (has_capability('mod/quiz:grade', $this->context)){ echo ''; } echo ''; echo '

'; // Close form echo '

'; echo '

'; } } } function col_checkbox($attempt){ if ($attempt->attempt){ return ''; } else { return ''; } } function col_picture($attempt){ global $COURSE; return print_user_picture($attempt->userid, $COURSE->id, $attempt->picture, false, true); } function col_timestart($attempt){ if ($attempt->attempt) { $startdate = userdate($attempt->timestart, $this->strtimeformat); if (!$this->is_downloading()) { return ''.$startdate.''; } else { return $startdate; } } else { return '-'; } } function col_timefinish($attempt){ if ($attempt->attempt) { if ($attempt->timefinish) { $timefinish = userdate($attempt->timefinish, $this->strtimeformat); if (!$this->is_downloading()) { return ''.$timefinish.''; } else { return $timefinish; } } else { return '-'; } } else { return '-'; } } function col_duration($attempt){ if ($attempt->timefinish) { return format_time($attempt->duration); } elseif ($attempt->timestart) { return get_string('unfinished', 'quiz'); } else { return '-'; } } function col_sumgrades($attempt){ if ($attempt->timefinish) { $grade = quiz_rescale_grade($attempt->sumgrades, $this->quiz); if (!$this->is_downloading()) { if (isset($this->regradedqs[$attempt->attemptuniqueid])){ $newsumgrade = 0; $oldsumgrade = 0; foreach ($this->questions as $question){ if (isset($this->regradedqs[$attempt->attemptuniqueid][$question->id])){ $newsumgrade += $this->regradedqs[$attempt->attemptuniqueid][$question->id]->newgrade; $oldsumgrade += $this->regradedqs[$attempt->attemptuniqueid][$question->id]->oldgrade; } else { $newsumgrade += $this->gradedstatesbyattempt[$attempt->attemptuniqueid][$question->id]->grade; $oldsumgrade += $this->gradedstatesbyattempt[$attempt->attemptuniqueid][$question->id]->grade; } } $newsumgrade = quiz_rescale_grade($newsumgrade, $this->quiz); $oldsumgrade = quiz_rescale_grade($oldsumgrade, $this->quiz); $grade = "~~$oldsumgrade~~
$newsumgrade"; } $gradehtml = ''.$grade.''; if ($this->qmsubselect && $attempt->gradedattempt){ $gradehtml = '

'.$gradehtml.'

'; } return $gradehtml; } else { return $grade; } } else { return '-'; } } function other_cols($colname, $attempt){ if (preg_match('/^qsgrade([0-9]+)$/', $colname, $matches)){ $questionid = $matches[1]; $question = $this->questions[$questionid]; if (isset($this->gradedstatesbyattempt[$attempt->attemptuniqueid][$questionid])){ $stateforqinattempt = $this->gradedstatesbyattempt[$attempt->attemptuniqueid][$questionid]; } else { $stateforqinattempt = false; } if ($stateforqinattempt && question_state_is_graded($stateforqinattempt)) { $grade = quiz_rescale_grade($stateforqinattempt->grade, $this->quiz); if (!$this->is_downloading()) { if (isset($this->regradedqs[$attempt->attemptuniqueid][$questionid])){ $gradefromdb = $grade; $newgrade = quiz_rescale_grade($this->regradedqs[$attempt->attemptuniqueid][$questionid]->newgrade, $this->quiz); $oldgrade = quiz_rescale_grade($this->regradedqs[$attempt->attemptuniqueid][$questionid]->oldgrade, $this->quiz); $grade = '~~'.$oldgrade.'~~
'. $newgrade; } return link_to_popup_window('/mod/quiz/reviewquestion.php?state='. $stateforqinattempt->id.'&number='.$question->number, 'reviewquestion', $grade, 450, 650, get_string('reviewresponse', 'quiz'), 'none', true); } else { return $grade; } } else { return '--'; } } else { return NULL; } } function col_feedbacktext($attempt){ if ($attempt->timefinish) { if (!$this->is_downloading()) { return quiz_report_feedback_for_grade(quiz_rescale_grade($attempt->sumgrades, $this->quiz), $this->quiz->id); } else { return strip_tags(quiz_report_feedback_for_grade(quiz_rescale_grade($attempt->sumgrades, $this->quiz), $this->quiz->id)); } } else { return '-'; } } function col_regraded($attempt){ if ($attempt->regraded == '') { return ''; } else if ($attempt->regraded == 0) { return get_string('needed', 'quiz_overview'); } else if ($attempt->regraded == 1) { return get_string('done', 'quiz_overview'); } } function query_db($pagesize, $useinitialsbar=true){ // Add table joins so we can sort by question grade // unfortunately can't join all tables necessary to fetch all grades // to get the state for one question per attempt row we must join two tables // and there is a limit to how many joins you can have in one query. In MySQL it // is 61. This means that when having more than 29 questions the query will fail. // So we join just the tables needed to sort the attempts. if($sort = $this->get_sql_sort()) { if ($this->detailedmarks) { $this->sql->from .= ' '; $sortparts = explode(',', $sort); $matches = array(); foreach($sortparts as $sortpart) { $sortpart = trim($sortpart); if (preg_match('/^qsgrade([0-9]+)/', $sortpart, $matches)){ $qid = intval($matches[1]); $this->sql->fields .= ", qs$qid.grade AS qsgrade$qid, qs$qid.event AS qsevent$qid, qs$qid.id AS qsid$qid"; $this->sql->from .= "LEFT JOIN {question_sessions} qns$qid ON qns$qid.attemptid = qa.uniqueid AND qns$qid.questionid = :qid$qid "; $this->sql->from .= "LEFT JOIN {question_states} qs$qid ON qs$qid.id = qns$qid.newgraded "; $this->sql->params['qid'.$qid] = $qid; } } } } parent::query_db($pagesize, $useinitialsbar); if ($this->detailedmarks){ //get all the attempt ids we want to display on this page //or to export for download. if (!$this->is_downloading()) { $attemptids = array(); foreach ($this->rawdata as $attempt){ if ($attempt->attemptuniqueid > 0){ $attemptids[] = $attempt->attemptuniqueid; } } $this->gradedstatesbyattempt = quiz_get_newgraded_states($attemptids, true, 'qs.id, qs.grade, qs.event, qs.question, qs.attempt'); $this->regradedqs = quiz_get_regraded_qs($attemptids); } else { $this->gradedstatesbyattempt = quiz_get_newgraded_states($this->sql, true, 'qs.id, qs.grade, qs.event, qs.question, qs.attempt'); $this->regradedqs = quiz_get_regraded_qs($this->sql); } } } } ?>