mod/scorm/prereqs.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 // This page is called via AJAX to repopulte the TOC when LMSFinish() is called.
  18
  19 require_once('../../config.php');
  20 require_once($CFG->dirroot.'/mod/scorm/locallib.php');
  21
  22 $id = optional_param('id', '', PARAM_INT);                  // Course Module ID, or
  23 $a = optional_param('a', '', PARAM_INT);                    // scorm ID
  24 $scoid = required_param('scoid', PARAM_INT);                // sco ID
  25 $attempt = required_param('attempt', PARAM_INT);            // attempt number
  26 $mode = optional_param('mode', 'normal', PARAM_ALPHA);      // navigation mode
  27 $currentorg = optional_param('currentorg', '', PARAM_RAW);  // selected organization.
  28
  29 if (!empty($id)) {
  30     if (! $cm = get_coursemodule_from_id('scorm', $id)) {
  31         print_error('invalidcoursemodule');
  32     }
  33     if (! $course = $DB->get_record("course", array("id" => $cm->course))) {
  34         print_error('coursemisconf');
  35     }
  36     if (! $scorm = $DB->get_record("scorm", array("id" => $cm->instance))) {
  37         print_error('invalidcoursemodule');
  38     }
  39 } else if (!empty($a)) {
  40     if (! $scorm = $DB->get_record("scorm", array("id" => $a))) {
  41         print_error('invalidcoursemodule');
  42     }
  43     if (! $course = $DB->get_record("course", array("id" => $scorm->course))) {
  44         print_error('coursemisconf');
  45     }
  46     if (! $cm = get_coursemodule_from_instance("scorm", $scorm->id, $course->id)) {
  47         print_error('invalidcoursemodule');
  48     }
  49 } else {
  50     print_error('missingparameter');
  51 }
  52
  53 // PARAM_RAW is used for $currentorg, validate it against records stored in the table.
  54 if (!empty($currentorg)) {
  55     if (!$DB->record_exists('scorm_scoes', array('scorm' => $scorm->id, 'identifier' => $currentorg))) {
  56         $currentorg = '';
  57     }
  58 }
  59
  60 $PAGE->set_url('/mod/scorm/prereqs.php', array('scoid' => $scoid, 'attempt' => $attempt, 'id' => $cm->id));
  61
  62 require_login($course, false, $cm);
  63
  64 $scorm->version = strtolower(clean_param($scorm->version, PARAM_SAFEDIR));   // Just to be safe.
  65 if (!file_exists($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php')) {
  66     $scorm->version = 'scorm_12';
  67 }
  68 require_once($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php');
  69
  70
  71 if (confirm_sesskey() && (!empty($scoid))) {
  72     $result = true;
  73     $request = null;
  74     if (has_capability('mod/scorm:savetrack', context_module::instance($cm->id))) {
  75         $result = scorm_get_toc($USER, $scorm, $cm->id, TOCJSLINK, $currentorg, $scoid, $mode, $attempt, true, false);
  76         echo $result->toc;
  77     }
  78 }