course/rest.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  * Provide interface for topics AJAX course formats
  20  *
  21  * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package course
  24  */
  25
  26 if (!defined('AJAX_SCRIPT')) {
  27     define('AJAX_SCRIPT', true);
  28 }
  29 require_once(__DIR__ . '/../config.php');
  30 require_once($CFG->dirroot.'/course/lib.php');
  31
  32 // Initialise ALL the incoming parameters here, up front.
  33 $courseid   = required_param('courseId', PARAM_INT);
  34 $class      = required_param('class', PARAM_ALPHA);
  35 $field      = optional_param('field', '', PARAM_ALPHA);
  36 $sectionid  = optional_param('sectionId', 0, PARAM_INT);
  37 $beforeid   = optional_param('beforeId', 0, PARAM_INT);
  38 $value      = optional_param('value', 0, PARAM_INT);
  39 $id         = optional_param('id', 0, PARAM_INT);
  40
  41 $PAGE->set_url('/course/rest.php', array('courseId'=>$courseid,'class'=>$class));
  42
  43 //NOTE: when making any changes here please make sure it is using the same access control as course/mod.php !!
  44
  45 $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
  46 // Check user is logged in and set contexts if we are dealing with resource
  47 if (in_array($class, array('resource'))) {
  48     $cm = get_coursemodule_from_id(null, $id, $course->id, false, MUST_EXIST);
  49     require_login($course, false, $cm);
  50     $modcontext = context_module::instance($cm->id);
  51 } else {
  52     require_login($course);
  53 }
  54 $coursecontext = context_course::instance($course->id);
  55 require_sesskey();
  56
  57 echo $OUTPUT->header(); // send headers
  58
  59 if ($class === 'section' && $field === 'move') {
  60     if (!$DB->record_exists('course_sections', array('course' => $course->id, 'section' => $id))) {
  61         throw new moodle_exception('AJAX commands.php: Bad Section ID ' . $id);
  62     }
  63
  64     require_capability('moodle/course:movesections', $coursecontext);
  65     move_section_to($course, $id, $value);
  66     // See if format wants to do something about it.
  67     $response = course_get_format($course)->ajax_section_move();
  68     if ($response !== null) {
  69         echo json_encode($response);
  70     }
  71
  72 } else if ($class === 'resource' && $field === 'move') {
  73
  74     require_capability('moodle/course:manageactivities', $modcontext);
  75     if (!$section = $DB->get_record('course_sections', array('course' => $course->id, 'section' => $sectionid))) {
  76         throw new moodle_exception('AJAX commands.php: Bad section ID '.$sectionid);
  77     }
  78
  79     if ($beforeid > 0) {
  80         $beforemod = get_coursemodule_from_id('', $beforeid, $course->id);
  81         $beforemod = $DB->get_record('course_modules', array('id' => $beforeid));
  82     } else {
  83         $beforemod = null;
  84     }
  85
  86     $isvisible = moveto_module($cm, $section, $beforemod);
  87     echo json_encode(array('visible' => (bool) $isvisible));
  88 }