mod/scorm/datamodel.php

   1 <?php
   2     require_once('../../config.php');
   3     require_once('locallib.php');
   4
   5     $id = optional_param('id', '', PARAM_INT);       // Course Module ID, or
   6     $a = optional_param('a', '', PARAM_INT);         // scorm ID
   7     $scoid = required_param('scoid', PARAM_INT);  // sco ID
   8     $attempt = required_param('attempt', PARAM_INT);  // attempt number
   9 //    $attempt = $SESSION->scorm_attempt;
  10
  11
  12     if (!empty($id)) {
  13         if (! $cm = get_record("course_modules", "id", $id)) {
  14             error("Course Module ID was incorrect");
  15         }
  16         if (! $course = get_record("course", "id", $cm->course)) {
  17             error("Course is misconfigured");
  18         }
  19         if (! $scorm = get_record("scorm", "id", $cm->instance)) {
  20             error("Course module is incorrect");
  21         }
  22     } else if (!empty($a)) {
  23         if (! $scorm = get_record("scorm", "id", $a)) {
  24             error("Course module is incorrect");
  25         }
  26         if (! $course = get_record("course", "id", $scorm->course)) {
  27             error("Course is misconfigured");
  28         }
  29         if (! $cm = get_coursemodule_from_instance("scorm", $scorm->id, $course->id)) {
  30             error("Course Module ID was incorrect");
  31         }
  32     } else {
  33         error('A required parameter is missing');
  34     }
  35
  36     require_login($course->id, false, $cm);
  37
  38     if (confirm_sesskey() && (!empty($scoid))) {
  39         $result = true;
  40         $request = null;
  41         if (has_capability('mod/scorm:savetrack', get_context_instance(CONTEXT_MODULE,$cm->id))) {
  42             foreach ($_POST as $element => $value) {
  43                 $element = str_replace('__','.',$element);
  44                 if (substr($element,0,3) == 'cmi') {
  45                     $netelement = preg_replace('/\.N(\d+)\./',"\.\$1\.",$element);
  46                     $result = scorm_insert_track($USER->id, $scorm->id, $scoid, $attempt, $netelement, $value) && $result;
  47                 }
  48                 if (substr($element,0,15) == 'adl.nav.request') {
  49                     // SCORM 2004 Sequencing Request
  50                     require_once('datamodels/sequencinglib.php');
  51
  52                     $search = array('@continue@', '@previous@', '@\{target=(\S+)\}choice@', '@exit@', '@exitAll@', '@abandon@', '@abandonAll@');
  53                     $replace = array('continue_', 'previous_', '\1', 'exit_', 'exitall_', 'abandon_', 'abandonall');
  54                     $action = preg_replace($search, $replace, $value);
  55
  56                     if ($action != $value) {
  57                         // Evaluating navigation request
  58                         $valid = scorm_sequencing_overall ($scoid,$USER->id,$action);
  59                         $valid = 'true';
  60
  61                         // Set valid request
  62                         $search = array('@continue@', '@previous@', '@\{target=(\S+)\}choice@');
  63                         $replace = array('true', 'true', 'true');
  64                         $matched = preg_replace($search, $replace, $value);
  65                         if ($matched == 'true') {
  66                             $request = 'adl.nav.request_valid["'.$action.'"] = "'.$valid.'";';
  67                         }
  68                     }
  69                 }
  70             }
  71         }
  72         if ($result) {
  73             echo "true\n0";
  74         } else {
  75             echo "false\n101";
  76         }
  77         if ($request != null) {
  78             echo "\n".$request;
  79         }
  80     }
  81 ?>
  82