mod/survey/save.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 saving the results of a users survey and displaying
  20  * the final message.
  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     require_once('lib.php');
  29
  30
  31 // Make sure this is a legitimate posting
  32
  33     if (!$formdata = data_submitted() or !confirm_sesskey()) {
  34         print_error('cannotcallscript');
  35     }
  36
  37     $id = required_param('id', PARAM_INT);    // Course Module ID
  38
  39     if (! $cm = get_coursemodule_from_id('survey', $id)) {
  40         print_error('invalidcoursemodule');
  41     }
  42
  43     if (! $course = $DB->get_record("course", array("id"=>$cm->course))) {
  44         print_error('coursemisconf');
  45     }
  46
  47     $PAGE->set_url('/mod/survey/save.php', array('id'=>$id));
  48     require_login($course, false, $cm);
  49
  50     $context = context_module::instance($cm->id);
  51     require_capability('mod/survey:participate', $context);
  52
  53     if (! $survey = $DB->get_record("survey", array("id"=>$cm->instance))) {
  54         print_error('invalidsurveyid', 'survey');
  55     }
  56
  57     $strsurveysaved = get_string('surveysaved', 'survey');
  58
  59     $PAGE->set_title($strsurveysaved);
  60     $PAGE->set_heading($course->fullname);
  61     echo $OUTPUT->header();
  62     echo $OUTPUT->heading($survey->name);
  63
  64     if (survey_already_done($survey->id, $USER->id)) {
  65         notice(get_string("alreadysubmitted", "survey"), get_local_referer(false));
  66         exit;
  67     }
  68
  69
  70 // Sort through the data and arrange it
  71 // This is necessary because some of the questions
  72 // may have two answers, eg Question 1 -> 1 and P1
  73
  74     $answers = array();
  75
  76     foreach ($formdata as $key => $val) {
  77         if ($key <> "userid" && $key <> "id") {
  78             if ( substr($key,0,1) == "q") {
  79                 $key = clean_param(substr($key,1), PARAM_ALPHANUM);   // keep everything but the 'q', number or Pnumber
  80             }
  81             if ( substr($key,0,1) == "P") {
  82                 $realkey = (int) substr($key,1);
  83                 $answers[$realkey][1] = $val;
  84             } else {
  85                 $answers[$key][0] = $val;
  86             }
  87         }
  88     }
  89
  90
  91 // Now store the data.
  92
  93     $timenow = time();
  94     foreach ($answers as $key => $val) {
  95         if ($key != 'sesskey') {
  96             $newdata = new stdClass();
  97             $newdata->time = $timenow;
  98             $newdata->userid = $USER->id;
  99             $newdata->survey = $survey->id;
 100             $newdata->question = $key;
 101             if (!empty($val[0])) {
 102                 $newdata->answer1 = $val[0];
 103             } else {
 104                 $newdata->answer1 = "";
 105             }
 106             if (!empty($val[1])) {
 107                 $newdata->answer2 = $val[1];
 108             } else {
 109                 $newdata->answer2 = "";
 110             }
 111
 112             $DB->insert_record("survey_answers", $newdata);
 113         }
 114     }
 115
 116     $params = array(
 117         'context' => $context,
 118         'courseid' => $course->id,
 119         'other' => array('surveyid' => $survey->id)
 120     );
 121     $event = \mod_survey\event\response_submitted::create($params);
 122     $event->trigger();
 123
 124 // Print the page and finish up.
 125
 126     notice(get_string("thanksforanswers","survey", $USER->firstname), "$CFG->wwwroot/course/view.php?id=$course->id");
 127
 128     exit;
 129
 130
 131