mod/survey/download.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This file is responsible for producing the downloadable versions of a survey
  20  * module.
  21  *
  22  * @package   mod_survey
  23  * @copyright 1999 onwards Martin Dougiamas  {@link http://moodle.com}
  24  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 require_once ("../../config.php");
  28
  29 // Check that all the parameters have been provided.
  30
  31 $id    = required_param('id', PARAM_INT);    // Course Module ID
  32 $type  = optional_param('type', 'xls', PARAM_ALPHA);
  33 $group = optional_param('group', 0, PARAM_INT);
  34
  35 if (! $cm = get_coursemodule_from_id('survey', $id)) {
  36     print_error('invalidcoursemodule');
  37 }
  38
  39 if (! $course = $DB->get_record("course", array("id"=>$cm->course))) {
  40     print_error('coursemisconf');
  41 }
  42
  43 $context = context_module::instance($cm->id);
  44
  45 $PAGE->set_url('/mod/survey/download.php', array('id'=>$id, 'type'=>$type, 'group'=>$group));
  46
  47 require_login($course, false, $cm);
  48 require_capability('mod/survey:download', $context) ;
  49
  50 if (! $survey = $DB->get_record("survey", array("id"=>$cm->instance))) {
  51     print_error('invalidsurveyid', 'survey');
  52 }
  53
  54 $params = array(
  55     'objectid' => $survey->id,
  56     'context' => $context,
  57     'courseid' => $course->id,
  58     'other' => array('type' => $type, 'groupid' => $group)
  59 );
  60 $event = \mod_survey\event\report_downloaded::create($params);
  61 $event->trigger();
  62
  63 /// Check to see if groups are being used in this survey
  64
  65 $groupmode = groups_get_activity_groupmode($cm);   // Groups are being used
  66
  67 if ($groupmode and $group) {
  68     $users = get_users_by_capability($context, 'mod/survey:participate', '', '', '', '', $group, null, false);
  69 } else {
  70     $users = get_users_by_capability($context, 'mod/survey:participate', '', '', '', '', '', null, false);
  71     $group = false;
  72 }
  73
  74 // The order of the questions
  75 $order = explode(",", $survey->questions);
  76
  77 // Get the actual questions from the database
  78 $questions = $DB->get_records_list("survey_questions", "id", $order);
  79
  80 // Get an ordered array of questions
  81 $orderedquestions = array();
  82
  83 $virtualscales = false;
  84 foreach ($order as $qid) {
  85     $orderedquestions[$qid] = $questions[$qid];
  86     // Check if this question is using virtual scales
  87     if (!$virtualscales && $questions[$qid]->type < 0) {
  88         $virtualscales = true;
  89     }
  90 }
  91 $nestedorder = array();//will contain the subquestions attached to the main questions
  92 $preparray = array();
  93
  94 foreach ($orderedquestions as $qid=>$question) {
  95     //$orderedquestions[$qid]->text = get_string($question->text, "survey");
  96     if (!empty($question->multi)) {
  97         $actualqids = explode(",", $questions[$qid]->multi);
  98         foreach ($actualqids as $subqid) {
  99             if (!empty($orderedquestions[$subqid]->type)) {
 100                 $orderedquestions[$subqid]->type = $questions[$qid]->type;
 101             }
 102         }
 103     } else {
 104         $actualqids = array($qid);
 105     }
 106     if ($virtualscales && $questions[$qid]->type < 0) {
 107         $nestedorder[$qid] = $actualqids;
 108     } else if (!$virtualscales && $question->type >= 0) {
 109         $nestedorder[$qid] = $actualqids;
 110     } else {
 111         //todo andrew this was added by me. Is it correct?
 112         $nestedorder[$qid] = array();
 113     }
 114 }
 115
 116 $reversednestedorder = array();
 117 foreach ($nestedorder as $qid=>$subqidarray) {
 118     foreach ($subqidarray as $subqui) {
 119         $reversednestedorder[$subqui] = $qid;
 120     }
 121 }
 122
 123 //need to get info on the sub-questions from the db and merge the arrays of questions
 124 $allquestions = array_merge($questions, $DB->get_records_list("survey_questions", "id", array_keys($reversednestedorder)));
 125
 126 //array_merge() messes up the keys so reinstate them
 127 $questions = array();
 128 foreach($allquestions as $question) {
 129     $questions[$question->id] = $question;
 130
 131     //while were iterating over the questions get the question text
 132     $questions[$question->id]->text = get_string($questions[$question->id]->text, "survey");
 133 }
 134 unset($allquestions);
 135
 136 // Get and collate all the results in one big array
 137 if (! $surveyanswers = $DB->get_records("survey_answers", array("survey"=>$survey->id), "time ASC")) {
 138     print_error('cannotfindanswer', 'survey');
 139 }
 140
 141 $results = array();
 142
 143 foreach ($surveyanswers as $surveyanswer) {
 144     if (!$group || isset($users[$surveyanswer->userid])) {
 145         //$questionid = $reversednestedorder[$surveyanswer->question];
 146         $questionid = $surveyanswer->question;
 147         if (!array_key_exists($surveyanswer->userid, $results)) {
 148             $results[$surveyanswer->userid] = array('time'=>$surveyanswer->time);
 149         }
 150         $results[$surveyanswer->userid][$questionid]['answer1'] = $surveyanswer->answer1;
 151         $results[$surveyanswer->userid][$questionid]['answer2'] = $surveyanswer->answer2;
 152     }
 153 }
 154
 155 // Output the file as a valid ODS spreadsheet if required
 156 $coursecontext = context_course::instance($course->id);
 157 $courseshortname = format_string($course->shortname, true, array('context' => $coursecontext));
 158
 159 if ($type == "ods") {
 160     require_once("$CFG->libdir/odslib.class.php");
 161
 162 /// Calculate file name
 163     $downloadfilename = clean_filename(strip_tags($courseshortname.' '.format_string($survey->name, true))).'.ods';
 164 /// Creating a workbook
 165     $workbook = new MoodleODSWorkbook("-");
 166 /// Sending HTTP headers
 167     $workbook->send($downloadfilename);
 168 /// Creating the first worksheet
 169     $myxls = $workbook->add_worksheet(core_text::substr(strip_tags(format_string($survey->name,true)), 0, 31));
 170
 171     $header = array("surveyid","surveyname","userid","firstname","lastname","email","idnumber","time", "notes");
 172     $col=0;
 173     foreach ($header as $item) {
 174         $myxls->write_string(0,$col++,$item);
 175     }
 176
 177     foreach ($nestedorder as $key => $nestedquestions) {
 178         foreach ($nestedquestions as $key2 => $qid) {
 179             $question = $questions[$qid];
 180             if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 181                 $myxls->write_string(0,$col++,"$question->text");
 182             }
 183             if ($question->type == "2" || $question->type == "3")  {
 184                 $myxls->write_string(0,$col++,"$question->text (preferred)");
 185             }
 186         }
 187     }
 188
 189 //      $date = $workbook->addformat();
 190 //      $date->set_num_format('mmmm-d-yyyy h:mm:ss AM/PM'); // ?? adjust the settings to reflect the PHP format below
 191
 192     $row = 0;
 193     foreach ($results as $user => $rest) {
 194         $col = 0;
 195         $row++;
 196         if (! $u = $DB->get_record("user", array("id"=>$user))) {
 197             print_error('invaliduserid');
 198         }
 199         if ($n = $DB->get_record("survey_analysis", array("survey"=>$survey->id, "userid"=>$user))) {
 200             $notes = $n->notes;
 201         } else {
 202             $notes = "No notes made";
 203         }
 204         $myxls->write_string($row,$col++,$survey->id);
 205         $myxls->write_string($row,$col++,strip_tags(format_text($survey->name,true)));
 206         $myxls->write_string($row,$col++,$user);
 207         $myxls->write_string($row,$col++,$u->firstname);
 208         $myxls->write_string($row,$col++,$u->lastname);
 209         $myxls->write_string($row,$col++,$u->email);
 210         $myxls->write_string($row,$col++,$u->idnumber);
 211         $myxls->write_string($row,$col++, userdate($results[$user]["time"], "%d-%b-%Y %I:%M:%S %p") );
 212 //          $myxls->write_number($row,$col++,$results[$user]["time"],$date);
 213         $myxls->write_string($row,$col++,$notes);
 214
 215         foreach ($nestedorder as $key => $nestedquestions) {
 216             foreach ($nestedquestions as $key2 => $qid) {
 217                 $question = $questions[$qid];
 218                 if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 219                     $myxls->write_string($row,$col++, $results[$user][$qid]["answer1"] );
 220                 }
 221                 if ($question->type == "2" || $question->type == "3")  {
 222                     $myxls->write_string($row, $col++, $results[$user][$qid]["answer2"] );
 223                 }
 224             }
 225         }
 226     }
 227     $workbook->close();
 228
 229     exit;
 230 }
 231
 232 // Output the file as a valid Excel spreadsheet if required
 233
 234 if ($type == "xls") {
 235     require_once("$CFG->libdir/excellib.class.php");
 236
 237 /// Calculate file name
 238     $downloadfilename = clean_filename(strip_tags($courseshortname.' '.format_string($survey->name,true))).'.xls';
 239 /// Creating a workbook
 240     $workbook = new MoodleExcelWorkbook("-");
 241 /// Sending HTTP headers
 242     $workbook->send($downloadfilename);
 243 /// Creating the first worksheet
 244     $myxls = $workbook->add_worksheet(core_text::substr(strip_tags(format_string($survey->name,true)), 0, 31));
 245
 246     $header = array("surveyid","surveyname","userid","firstname","lastname","email","idnumber","time", "notes");
 247     $col=0;
 248     foreach ($header as $item) {
 249         $myxls->write_string(0,$col++,$item);
 250     }
 251
 252     foreach ($nestedorder as $key => $nestedquestions) {
 253         foreach ($nestedquestions as $key2 => $qid) {
 254             $question = $questions[$qid];
 255
 256             if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 257                 $myxls->write_string(0,$col++,"$question->text");
 258             }
 259             if ($question->type == "2" || $question->type == "3")  {
 260                 $myxls->write_string(0,$col++,"$question->text (preferred)");
 261             }
 262         }
 263     }
 264
 265 //      $date = $workbook->addformat();
 266 //      $date->set_num_format('mmmm-d-yyyy h:mm:ss AM/PM'); // ?? adjust the settings to reflect the PHP format below
 267
 268     $row = 0;
 269     foreach ($results as $user => $rest) {
 270         $col = 0;
 271         $row++;
 272         if (! $u = $DB->get_record("user", array("id"=>$user))) {
 273             print_error('invaliduserid');
 274         }
 275         if ($n = $DB->get_record("survey_analysis", array("survey"=>$survey->id, "userid"=>$user))) {
 276             $notes = $n->notes;
 277         } else {
 278             $notes = "No notes made";
 279         }
 280         $myxls->write_string($row,$col++,$survey->id);
 281         $myxls->write_string($row,$col++,strip_tags(format_text($survey->name,true)));
 282         $myxls->write_string($row,$col++,$user);
 283         $myxls->write_string($row,$col++,$u->firstname);
 284         $myxls->write_string($row,$col++,$u->lastname);
 285         $myxls->write_string($row,$col++,$u->email);
 286         $myxls->write_string($row,$col++,$u->idnumber);
 287         $myxls->write_string($row,$col++, userdate($results[$user]["time"], "%d-%b-%Y %I:%M:%S %p") );
 288 //          $myxls->write_number($row,$col++,$results[$user]["time"],$date);
 289         $myxls->write_string($row,$col++,$notes);
 290
 291         foreach ($nestedorder as $key => $nestedquestions) {
 292             foreach ($nestedquestions as $key2 => $qid) {
 293                 $question = $questions[$qid];
 294                 if (($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")
 295                     && array_key_exists($qid, $results[$user]) ){
 296                 $myxls->write_string($row,$col++, $results[$user][$qid]["answer1"] );
 297             }
 298                 if (($question->type == "2" || $question->type == "3")
 299                     && array_key_exists($qid, $results[$user]) ){
 300                 $myxls->write_string($row, $col++, $results[$user][$qid]["answer2"] );
 301             }
 302         }
 303     }
 304     }
 305     $workbook->close();
 306
 307     exit;
 308 }
 309
 310 // Otherwise, return the text file.
 311
 312 // Print header to force download
 313
 314 header("Content-Type: application/download\n");
 315
 316 $downloadfilename = clean_filename(strip_tags($courseshortname.' '.format_string($survey->name,true)));
 317 header("Content-Disposition: attachment; filename=\"$downloadfilename.txt\"");
 318
 319 // Print names of all the fields
 320
 321 echo "surveyid    surveyname    userid    firstname    lastname    email    idnumber    time    ";
 322
 323 foreach ($nestedorder as $key => $nestedquestions) {
 324     foreach ($nestedquestions as $key2 => $qid) {
 325         $question = $questions[$qid];
 326     if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 327         echo "$question->text    ";
 328     }
 329     if ($question->type == "2" || $question->type == "3")  {
 330          echo "$question->text (preferred)    ";
 331     }
 332 }
 333 }
 334 echo "\n";
 335
 336 // Print all the lines of data.
 337 foreach ($results as $user => $rest) {
 338     if (! $u = $DB->get_record("user", array("id"=>$user))) {
 339         print_error('invaliduserid');
 340     }
 341     echo $survey->id."\t";
 342     echo strip_tags(format_string($survey->name,true))."\t";
 343     echo $user."\t";
 344     echo $u->firstname."\t";
 345     echo $u->lastname."\t";
 346     echo $u->email."\t";
 347     echo $u->idnumber."\t";
 348     echo userdate($results[$user]["time"], "%d-%b-%Y %I:%M:%S %p")."\t";
 349
 350     foreach ($nestedorder as $key => $nestedquestions) {
 351         foreach ($nestedquestions as $key2 => $qid) {
 352             $question = $questions[$qid];
 353
 354             if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 355                 echo $results[$user][$qid]["answer1"]."    ";
 356             }
 357             if ($question->type == "2" || $question->type == "3")  {
 358                 echo $results[$user][$qid]["answer2"]."    ";
 359             }
 360         }
 361     }
 362     echo "\n";
 363 }
 364
 365 exit;