mod/survey/save.php

   1 <?php // $Id$
   2
   3     require_once('../../config.php');
   4     require_once('lib.php');
   5
   6
   7 // Make sure this is a legitimate posting
   8
   9     if (!$formdata = data_submitted("$CFG->wwwroot/mod/survey/view.php")) {
  10         error("You are not supposed to use this script like that.");
  11     }
  12
  13     $id = required_param('id', PARAM_INT);    // Course Module ID
  14
  15     if (! $cm = get_coursemodule_from_id('survey', $id)) {
  16         error("Course Module ID was incorrect");
  17     }
  18
  19     if (! $course = get_record("course", "id", $cm->course)) {
  20         error("Course is misconfigured");
  21     }
  22
  23     require_login($course->id, false, $cm);
  24
  25     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  26     require_capability('mod/survey:participate', $context);
  27
  28     if (! $survey = get_record("survey", "id", $cm->instance)) {
  29         error("Survey ID was incorrect");
  30     }
  31
  32     add_to_log($course->id, "survey", "submit", "view.php?id=$cm->id", "$survey->id", "$cm->id");
  33
  34     $strsurveysaved = get_string('surveysaved', 'survey');
  35
  36     $navigation = build_navigation('', $cm);
  37     print_header_simple("$strsurveysaved", "", $navigation, "");
  38
  39
  40     if (survey_already_done($survey->id, $USER->id)) {
  41         notice(get_string("alreadysubmitted", "survey"), $_SERVER["HTTP_REFERER"]);
  42         exit;
  43     }
  44
  45
  46 // Sort through the data and arrange it
  47 // This is necessary because some of the questions
  48 // may have two answers, eg Question 1 -> 1 and P1
  49
  50     $answers = array();
  51
  52     foreach ($formdata as $key => $val) {
  53         if ($key <> "userid" && $key <> "id") {
  54             if ( substr($key,0,1) == "q") {
  55                 $key = clean_param(substr($key,1), PARAM_ALPHANUM);   // keep everything but the 'q', number or Pnumber
  56             }
  57             if ( substr($key,0,1) == "P") {
  58                 $realkey = (int) substr($key,1);
  59                 $answers[$realkey][1] = $val;
  60             } else {
  61                 $answers[$key][0] = $val;
  62             }
  63         }
  64     }
  65
  66
  67 // Now store the data.
  68
  69     $timenow = time();
  70     foreach ($answers as $key => $val) {
  71
  72         $newdata->time = $timenow;
  73         $newdata->userid = $USER->id;
  74         $newdata->survey = $survey->id;
  75         $newdata->question = $key;
  76         if (!empty($val[0])) {
  77             $newdata->answer1 = $val[0];
  78         } else {
  79             $newdata->answer1 = "";
  80         }
  81         if (!empty($val[1])) {
  82             $newdata->answer2 = $val[1];
  83         } else {
  84             $newdata->answer2 = "";
  85         }
  86
  87         if (! insert_record("survey_answers", $newdata)) {
  88             error("Encountered a problem trying to store your results. Sorry.");
  89         }
  90     }
  91
  92 // Print the page and finish up.
  93
  94     notice(get_string("thanksforanswers","survey", $USER->firstname), "$CFG->wwwroot/course/view.php?id=$course->id");
  95
  96     exit;
  97
  98
  99 ?>