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<?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 file is responsible for producing the downloadable versions of a survey
* module.
*
* @package mod_survey
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once ("../../config.php");
// Check that all the parameters have been provided.
$id = required_param('id', PARAM_INT); // Course Module ID
$type = optional_param('type', 'xls', PARAM_ALPHA);
$group = optional_param('group', 0, PARAM_INT);
if (! $cm = get_coursemodule_from_id('survey', $id)) {
print_error('invalidcoursemodule');
}
if (! $course = $DB->get_record("course", array("id"=>$cm->course))) {
print_error('coursemisconf');
}
$context = context_module::instance($cm->id);
$PAGE->set_url('/mod/survey/download.php', array('id'=>$id, 'type'=>$type, 'group'=>$group));
require_login($course, false, $cm);
require_capability('mod/survey:download', $context) ;
if (! $survey = $DB->get_record("survey", array("id"=>$cm->instance))) {
print_error('invalidsurveyid', 'survey');
}
$params = array(
'objectid' => $survey->id,
'context' => $context,
'courseid' => $course->id,
'other' => array('type' => $type, 'groupid' => $group)
);
$event = \mod_survey\event\report_downloaded::create($params);
$event->trigger();
/// Check to see if groups are being used in this survey
$groupmode = groups_get_activity_groupmode($cm); // Groups are being used
if ($groupmode and $group) {
$users = get_users_by_capability($context, 'mod/survey:participate', '', '', '', '', $group, null, false);
} else {
$users = get_users_by_capability($context, 'mod/survey:participate', '', '', '', '', '', null, false);
$group = false;
}
// The order of the questions
$order = explode(",", $survey->questions);
// Get the actual questions from the database
$questions = $DB->get_records_list("survey_questions", "id", $order);
// Get an ordered array of questions
$orderedquestions = array();
$virtualscales = false;
foreach ($order as $qid) {
$orderedquestions[$qid] = $questions[$qid];
// Check if this question is using virtual scales
if (!$virtualscales && $questions[$qid]->type < 0) {
$virtualscales = true;
}
}
$nestedorder = array();//will contain the subquestions attached to the main questions
$preparray = array();
foreach ($orderedquestions as $qid=>$question) {
//$orderedquestions[$qid]->text = get_string($question->text, "survey");
if (!empty($question->multi)) {
$actualqids = explode(",", $questions[$qid]->multi);
foreach ($actualqids as $subqid) {
if (!empty($orderedquestions[$subqid]->type)) {
$orderedquestions[$subqid]->type = $questions[$qid]->type;
}
}
} else {
$actualqids = array($qid);
}
if ($virtualscales && $questions[$qid]->type < 0) {
$nestedorder[$qid] = $actualqids;
} else if (!$virtualscales && $question->type >= 0) {
$nestedorder[$qid] = $actualqids;
} else {
//todo andrew this was added by me. Is it correct?
$nestedorder[$qid] = array();
}
}
$reversednestedorder = array();
foreach ($nestedorder as $qid=>$subqidarray) {
foreach ($subqidarray as $subqui) {
$reversednestedorder[$subqui] = $qid;
}
}
//need to get info on the sub-questions from the db and merge the arrays of questions
$allquestions = array_merge($questions, $DB->get_records_list("survey_questions", "id", array_keys($reversednestedorder)));
//array_merge() messes up the keys so reinstate them
$questions = array();
foreach($allquestions as $question) {
$questions[$question->id] = $question;
//while were iterating over the questions get the question text
$questions[$question->id]->text = get_string($questions[$question->id]->text, "survey");
}
unset($allquestions);
// Get and collate all the results in one big array
if (! $surveyanswers = $DB->get_records("survey_answers", array("survey"=>$survey->id), "time ASC")) {
print_error('cannotfindanswer', 'survey');
}
$results = array();
foreach ($surveyanswers as $surveyanswer) {
if (!$group || isset($users[$surveyanswer->userid])) {
//$questionid = $reversednestedorder[$surveyanswer->question];
$questionid = $surveyanswer->question;
if (!array_key_exists($surveyanswer->userid, $results)) {
$results[$surveyanswer->userid] = array('time'=>$surveyanswer->time);
}
$results[$surveyanswer->userid][$questionid]['answer1'] = $surveyanswer->answer1;
$results[$surveyanswer->userid][$questionid]['answer2'] = $surveyanswer->answer2;
}
}
// Output the file as a valid ODS spreadsheet if required
$coursecontext = context_course::instance($course->id);
$courseshortname = format_string($course->shortname, true, array('context' => $coursecontext));
if ($type == "ods") {
require_once("$CFG->libdir/odslib.class.php");
/// Calculate file name
$downloadfilename = clean_filename(strip_tags($courseshortname.' '.format_string($survey->name, true))).'.ods';
/// Creating a workbook
$workbook = new MoodleODSWorkbook("-");
/// Sending HTTP headers
$workbook->send($downloadfilename);
/// Creating the first worksheet
$myxls = $workbook->add_worksheet(core_text::substr(strip_tags(format_string($survey->name,true)), 0, 31));
$header = array("surveyid","surveyname","userid","firstname","lastname","email","idnumber","time", "notes");
$col=0;
foreach ($header as $item) {
$myxls->write_string(0,$col++,$item);
}
foreach ($nestedorder as $key => $nestedquestions) {
foreach ($nestedquestions as $key2 => $qid) {
$question = $questions[$qid];
if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1") {
$myxls->write_string(0,$col++,"$question->text");
}
if ($question->type == "2" || $question->type == "3") {
$myxls->write_string(0,$col++,"$question->text (preferred)");
}
}
}
// $date = $workbook->addformat();
// $date->set_num_format('mmmm-d-yyyy h:mm:ss AM/PM'); // ?? adjust the settings to reflect the PHP format below
$row = 0;
foreach ($results as $user => $rest) {
$col = 0;
$row++;
if (! $u = $DB->get_record("user", array("id"=>$user))) {
print_error('invaliduserid');
}
if ($n = $DB->get_record("survey_analysis", array("survey"=>$survey->id, "userid"=>$user))) {
$notes = $n->notes;
} else {
$notes = "No notes made";
}
$myxls->write_string($row,$col++,$survey->id);
$myxls->write_string($row,$col++,strip_tags(format_text($survey->name,true)));
$myxls->write_string($row,$col++,$user);
$myxls->write_string($row,$col++,$u->firstname);
$myxls->write_string($row,$col++,$u->lastname);
$myxls->write_string($row,$col++,$u->email);
$myxls->write_string($row,$col++,$u->idnumber);
$myxls->write_string($row,$col++, userdate($results[$user]["time"], "%d-%b-%Y %I:%M:%S %p") );
// $myxls->write_number($row,$col++,$results[$user]["time"],$date);
$myxls->write_string($row,$col++,$notes);
foreach ($nestedorder as $key => $nestedquestions) {
foreach ($nestedquestions as $key2 => $qid) {
$question = $questions[$qid];
if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1") {
$myxls->write_string($row,$col++, $results[$user][$qid]["answer1"] );
}
if ($question->type == "2" || $question->type == "3") {
$myxls->write_string($row, $col++, $results[$user][$qid]["answer2"] );
}
}
}
}
$workbook->close();
exit;
}
// Output the file as a valid Excel spreadsheet if required
if ($type == "xls") {
require_once("$CFG->libdir/excellib.class.php");
/// Calculate file name
$downloadfilename = clean_filename(strip_tags($courseshortname.' '.format_string($survey->name,true))).'.xls';
/// Creating a workbook
$workbook = new MoodleExcelWorkbook("-");
/// Sending HTTP headers
$workbook->send($downloadfilename);
/// Creating the first worksheet
$myxls = $workbook->add_worksheet(core_text::substr(strip_tags(format_string($survey->name,true)), 0, 31));
$header = array("surveyid","surveyname","userid","firstname","lastname","email","idnumber","time", "notes");
$col=0;
foreach ($header as $item) {
$myxls->write_string(0,$col++,$item);
}
foreach ($nestedorder as $key => $nestedquestions) {
foreach ($nestedquestions as $key2 => $qid) {
$question = $questions[$qid];
if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1") {
$myxls->write_string(0,$col++,"$question->text");
}
if ($question->type == "2" || $question->type == "3") {
$myxls->write_string(0,$col++,"$question->text (preferred)");
}
}
}
// $date = $workbook->addformat();
// $date->set_num_format('mmmm-d-yyyy h:mm:ss AM/PM'); // ?? adjust the settings to reflect the PHP format below
$row = 0;
foreach ($results as $user => $rest) {
$col = 0;
$row++;
if (! $u = $DB->get_record("user", array("id"=>$user))) {
print_error('invaliduserid');
}
if ($n = $DB->get_record("survey_analysis", array("survey"=>$survey->id, "userid"=>$user))) {
$notes = $n->notes;
} else {
$notes = "No notes made";
}
$myxls->write_string($row,$col++,$survey->id);
$myxls->write_string($row,$col++,strip_tags(format_text($survey->name,true)));
$myxls->write_string($row,$col++,$user);
$myxls->write_string($row,$col++,$u->firstname);
$myxls->write_string($row,$col++,$u->lastname);
$myxls->write_string($row,$col++,$u->email);
$myxls->write_string($row,$col++,$u->idnumber);
$myxls->write_string($row,$col++, userdate($results[$user]["time"], "%d-%b-%Y %I:%M:%S %p") );
// $myxls->write_number($row,$col++,$results[$user]["time"],$date);
$myxls->write_string($row,$col++,$notes);
foreach ($nestedorder as $key => $nestedquestions) {
foreach ($nestedquestions as $key2 => $qid) {
$question = $questions[$qid];
if (($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")
&& array_key_exists($qid, $results[$user]) ){
$myxls->write_string($row,$col++, $results[$user][$qid]["answer1"] );
}
if (($question->type == "2" || $question->type == "3")
&& array_key_exists($qid, $results[$user]) ){
$myxls->write_string($row, $col++, $results[$user][$qid]["answer2"] );
}
}
}
}
$workbook->close();
exit;
}
// Otherwise, return the text file.
// Print header to force download
header("Content-Type: application/download\n");
$downloadfilename = clean_filename(strip_tags($courseshortname.' '.format_string($survey->name,true)));
header("Content-Disposition: attachment; filename=\"$downloadfilename.txt\"");
// Print names of all the fields
echo "surveyid surveyname userid firstname lastname email idnumber time ";
foreach ($nestedorder as $key => $nestedquestions) {
foreach ($nestedquestions as $key2 => $qid) {
$question = $questions[$qid];
if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1") {
echo "$question->text ";
}
if ($question->type == "2" || $question->type == "3") {
echo "$question->text (preferred) ";
}
}
}
echo "\n";
// Print all the lines of data.
foreach ($results as $user => $rest) {
if (! $u = $DB->get_record("user", array("id"=>$user))) {
print_error('invaliduserid');
}
echo $survey->id."\t";
echo strip_tags(format_string($survey->name,true))."\t";
echo $user."\t";
echo $u->firstname."\t";
echo $u->lastname."\t";
echo $u->email."\t";
echo $u->idnumber."\t";
echo userdate($results[$user]["time"], "%d-%b-%Y %I:%M:%S %p")."\t";
foreach ($nestedorder as $key => $nestedquestions) {
foreach ($nestedquestions as $key2 => $qid) {
$question = $questions[$qid];
if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1") {
echo $results[$user][$qid]["answer1"]." ";
}
if ($question->type == "2" || $question->type == "3") {
echo $results[$user][$qid]["answer2"]." ";
}
}
}
echo "\n";
}
exit;