mod/survey/download.php

   1 <?php // $Id$
   2
   3     require_once ("../../config.php");
   4
   5 // Check that all the parameters have been provided.
   6
   7     $id    = required_param('id', PARAM_INT);    // Course Module ID
   8     $type  = optional_param('type', 'xls', PARAM_ALPHA);
   9     $group = optional_param('group', 0, PARAM_INT);
  10
  11     if (! $cm = get_coursemodule_from_id('survey', $id)) {
  12         error("Course Module ID was incorrect");
  13     }
  14
  15     if (! $course = get_record("course", "id", $cm->course)) {
  16         error("Course is misconfigured");
  17     }
  18
  19     require_login($course->id, false, $cm);
  20     require_capability('mod/survey:download', get_context_instance(CONTEXT_MODULE, $cm->id)) ;
  21
  22     if (! $survey = get_record("survey", "id", $cm->instance)) {
  23         error("Survey ID was incorrect");
  24     }
  25
  26     add_to_log($course->id, "survey", "download", "download.php?id=$cm->id&amp;type=$type", "$survey->id", $cm->id);
  27
  28 /// Check to see if groups are being used in this survey
  29
  30     $groupmode = groups_get_activity_groupmode($cm);   // Groups are being used
  31
  32     if ($groupmode and $group) {
  33         $users = groups_get_members($group);
  34     } else {
  35         $users = get_course_users($course->id);
  36         $group = false;
  37     }
  38
  39 // Get all the questions and their proper order
  40
  41     $questions = get_records_list("survey_questions", "id", $survey->questions);
  42     $order = explode(",", $survey->questions);
  43
  44     $virtualscales = false;
  45     foreach ($order as $key => $qid) {  // Do we have virtual scales?
  46         $question = $questions[$qid];
  47         if ($question->type < 0) {
  48             $virtualscales = true;
  49             break;
  50         }
  51     }
  52
  53     $fullorderlist = "";
  54     foreach ($order as $key => $qid) {    // build up list of actual questions
  55         $question = $questions[$qid];
  56
  57         if (!(empty($fullorderlist))) {
  58             $fullorderlist .= ",";
  59         }
  60
  61         if ($question->multi) {
  62             $addlist = $question->multi;
  63         } else {
  64             $addlist = $qid;
  65         }
  66
  67         if ($virtualscales && ($question->type < 0)) {        // only use them
  68             $fullorderlist .= $addlist;
  69
  70         } else if (!$virtualscales && ($question->type >= 0)){   // ignore them
  71             $fullorderlist .= $addlist;
  72         }
  73     }
  74
  75     $fullquestions = get_records_list("survey_questions", "id", $fullorderlist);
  76
  77 //  Question type of multi-questions overrides the type of single questions
  78     foreach ($order as $key => $qid) {
  79         $question = $questions[$qid];
  80
  81         if ($question->multi) {
  82             $subs = explode(",", $question->multi);
  83             while (list ($skey, $sqid) = each ($subs)) {
  84                 $fullquestions["$sqid"]->type = $question->type;
  85             }
  86         }
  87     }
  88
  89     $order     = explode(",", $fullorderlist);
  90     $questions = $fullquestions;
  91
  92 //  Translate all the question texts
  93
  94     foreach ($questions as $key => $question) {
  95         $questions[$key]->text = get_string($question->text, "survey");
  96     }
  97
  98
  99 // Get and collate all the results in one big array
 100
 101     if (! $aaa = get_records("survey_answers", "survey", "$survey->id", "time ASC")) {
 102         error("There are no answers for this survey yet.");
 103     }
 104
 105     foreach ($aaa as $a) {
 106         if (!$group or isset($users[$a->userid])) {
 107             if (empty($results["$a->userid"])) { // init new array
 108                 $results["$a->userid"]["time"] = $a->time;
 109                 foreach ($order as $key => $qid) {
 110                     $results["$a->userid"]["$qid"]["answer1"] = "";
 111                     $results["$a->userid"]["$qid"]["answer2"] = "";
 112                 }
 113             }
 114             $results["$a->userid"]["$a->question"]["answer1"] = $a->answer1;
 115             $results["$a->userid"]["$a->question"]["answer2"] = $a->answer2;
 116         }
 117     }
 118
 119 // Output the file as a valid ODS spreadsheet if required
 120
 121     if ($type == "ods") {
 122         require_once("$CFG->libdir/odslib.class.php");
 123
 124     /// Calculate file name
 125         $downloadfilename = clean_filename("$course->shortname ".strip_tags(format_string($survey->name,true))).'.ods';
 126     /// Creating a workbook
 127         $workbook = new MoodleODSWorkbook("-");
 128     /// Sending HTTP headers
 129         $workbook->send($downloadfilename);
 130     /// Creating the first worksheet
 131         $myxls =& $workbook->add_worksheet(substr(strip_tags(format_string($survey->name,true)), 0, 31));
 132
 133         $header = array("surveyid","surveyname","userid","firstname","lastname","email","idnumber","time", "notes");
 134         $col=0;
 135         foreach ($header as $item) {
 136             $myxls->write_string(0,$col++,$item);
 137         }
 138         foreach ($order as $key => $qid) {
 139             $question = $questions["$qid"];
 140             if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 141                 $myxls->write_string(0,$col++,"$question->text");
 142             }
 143             if ($question->type == "2" || $question->type == "3")  {
 144                 $myxls->write_string(0,$col++,"$question->text (preferred)");
 145             }
 146         }
 147
 148 //      $date = $workbook->addformat();
 149 //      $date->set_num_format('mmmm-d-yyyy h:mm:ss AM/PM'); // ?? adjust the settings to reflect the PHP format below
 150
 151         $row = 0;
 152         foreach ($results as $user => $rest) {
 153             $col = 0;
 154             $row++;
 155             if (! $u = get_record("user", "id", $user)) {
 156                 error("Error finding student # $user");
 157             }
 158             if ($n = get_record("survey_analysis", "survey", $survey->id, "userid", $user)) {
 159                 $notes = $n->notes;
 160             } else {
 161                 $notes = "No notes made";
 162             }
 163             $myxls->write_string($row,$col++,$survey->id);
 164             $myxls->write_string($row,$col++,strip_tags(format_text($survey->name,true)));
 165             $myxls->write_string($row,$col++,$user);
 166             $myxls->write_string($row,$col++,$u->firstname);
 167             $myxls->write_string($row,$col++,$u->lastname);
 168             $myxls->write_string($row,$col++,$u->email);
 169             $myxls->write_string($row,$col++,$u->idnumber);
 170             $myxls->write_string($row,$col++, userdate($results["$user"]["time"], "%d-%b-%Y %I:%M:%S %p") );
 171 //          $myxls->write_number($row,$col++,$results["$user"]["time"],$date);
 172             $myxls->write_string($row,$col++,$notes);
 173
 174             foreach ($order as $key => $qid) {
 175                 $question = $questions["$qid"];
 176                 if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 177                     $myxls->write_string($row,$col++, $results["$user"]["$qid"]["answer1"] );
 178                 }
 179                 if ($question->type == "2" || $question->type == "3")  {
 180                     $myxls->write_string($row, $col++, $results["$user"]["$qid"]["answer2"] );
 181                 }
 182             }
 183         }
 184         $workbook->close();
 185
 186         exit;
 187     }
 188
 189 // Output the file as a valid Excel spreadsheet if required
 190
 191     if ($type == "xls") {
 192         require_once("$CFG->libdir/excellib.class.php");
 193
 194     /// Calculate file name
 195         $downloadfilename = clean_filename("$course->shortname ".strip_tags(format_string($survey->name,true))).'.xls';
 196     /// Creating a workbook
 197         $workbook = new MoodleExcelWorkbook("-");
 198     /// Sending HTTP headers
 199         $workbook->send($downloadfilename);
 200     /// Creating the first worksheet
 201         $myxls =& $workbook->add_worksheet(substr(strip_tags(format_string($survey->name,true)), 0, 31));
 202
 203         $header = array("surveyid","surveyname","userid","firstname","lastname","email","idnumber","time", "notes");
 204         $col=0;
 205         foreach ($header as $item) {
 206             $myxls->write_string(0,$col++,$item);
 207         }
 208         foreach ($order as $key => $qid) {
 209             $question = $questions["$qid"];
 210             if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 211                 $myxls->write_string(0,$col++,"$question->text");
 212             }
 213             if ($question->type == "2" || $question->type == "3")  {
 214                 $myxls->write_string(0,$col++,"$question->text (preferred)");
 215             }
 216         }
 217
 218 //      $date = $workbook->addformat();
 219 //      $date->set_num_format('mmmm-d-yyyy h:mm:ss AM/PM'); // ?? adjust the settings to reflect the PHP format below
 220
 221         $row = 0;
 222         foreach ($results as $user => $rest) {
 223             $col = 0;
 224             $row++;
 225             if (! $u = get_record("user", "id", $user)) {
 226                 error("Error finding student # $user");
 227             }
 228             if ($n = get_record("survey_analysis", "survey", $survey->id, "userid", $user)) {
 229                 $notes = $n->notes;
 230             } else {
 231                 $notes = "No notes made";
 232             }
 233             $myxls->write_string($row,$col++,$survey->id);
 234             $myxls->write_string($row,$col++,strip_tags(format_text($survey->name,true)));
 235             $myxls->write_string($row,$col++,$user);
 236             $myxls->write_string($row,$col++,$u->firstname);
 237             $myxls->write_string($row,$col++,$u->lastname);
 238             $myxls->write_string($row,$col++,$u->email);
 239             $myxls->write_string($row,$col++,$u->idnumber);
 240             $myxls->write_string($row,$col++, userdate($results["$user"]["time"], "%d-%b-%Y %I:%M:%S %p") );
 241 //          $myxls->write_number($row,$col++,$results["$user"]["time"],$date);
 242             $myxls->write_string($row,$col++,$notes);
 243
 244             foreach ($order as $key => $qid) {
 245                 $question = $questions["$qid"];
 246                 if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 247                     $myxls->write_string($row,$col++, $results["$user"]["$qid"]["answer1"] );
 248                 }
 249                 if ($question->type == "2" || $question->type == "3")  {
 250                     $myxls->write_string($row, $col++, $results["$user"]["$qid"]["answer2"] );
 251                 }
 252             }
 253         }
 254         $workbook->close();
 255
 256         exit;
 257     }
 258
 259 // Otherwise, return the text file.
 260
 261 // Print header to force download
 262
 263     header("Content-Type: application/download\n");
 264
 265     $downloadfilename = clean_filename("$course->shortname ".strip_tags(format_string($survey->name,true)));
 266     header("Content-Disposition: attachment; filename=\"$downloadfilename.txt\"");
 267
 268 // Print names of all the fields
 269
 270     echo "surveyid    surveyname    userid    firstname    lastname    email    idnumber    time    ";
 271     foreach ($order as $key => $qid) {
 272         $question = $questions["$qid"];
 273         if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 274             echo "$question->text    ";
 275         }
 276         if ($question->type == "2" || $question->type == "3")  {
 277              echo "$question->text (preferred)    ";
 278         }
 279     }
 280     echo "\n";
 281
 282 // Print all the lines of data.
 283
 284     foreach ($results as $user => $rest) {
 285         if (! $u = get_record("user", "id", $user)) {
 286             error("Error finding student # $user");
 287         }
 288         echo $survey->id."\t";
 289         echo strip_tags(format_string($survey->name,true))."\t";
 290         echo $user."\t";
 291         echo $u->firstname."\t";
 292         echo $u->lastname."\t";
 293         echo $u->email."\t";
 294         echo $u->idnumber."\t";
 295         echo userdate($results["$user"]["time"], "%d-%b-%Y %I:%M:%S %p")."\t";
 296
 297         foreach ($order as $key => $qid) {
 298             $question = $questions["$qid"];
 299             if ($question->type == "0" || $question->type == "1" || $question->type == "3" || $question->type == "-1")  {
 300                 echo $results["$user"]["$qid"]["answer1"]."    ";
 301             }
 302             if ($question->type == "2" || $question->type == "3")  {
 303                 echo $results["$user"]["$qid"]["answer2"]."    ";
 304             }
 305         }
 306         echo "\n";
 307     }
 308     exit;
 309
 310
 311 ?>