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   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 script allows the number of sections in a course to be increased
  20   * or decreased, redirecting to the course page.
  21   *
  22   * @package core_course
  23   * @copyright 2012 Dan Poltawski
  24   * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   * @since Moodle 2.3
  26   */
  27  
  28  require_once(__DIR__.'/../config.php');
  29  require_once($CFG->dirroot.'/course/lib.php');
  30  
  31  $courseid = required_param('courseid', PARAM_INT);
  32  $increase = optional_param('increase', true, PARAM_BOOL);
  33  $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
  34  $courseformatoptions = course_get_format($course)->get_format_options();
  35  
  36  $PAGE->set_url('/course/changenumsections.php', array('courseid' => $courseid));
  37  
  38  // Authorisation checks.
  39  require_login($course);
  40  require_capability('moodle/course:update', context_course::instance($course->id));
  41  require_sesskey();
  42  
  43  if (isset($courseformatoptions['numsections'])) {
  44      if ($increase) {
  45          // Add an additional section.
  46          $courseformatoptions['numsections']++;
  47      } else {
  48          // Remove a section.
  49          $courseformatoptions['numsections']--;
  50      }
  51  
  52      // Don't go less than 0, intentionally redirect silently (for the case of
  53      // double clicks).
  54      if ($courseformatoptions['numsections'] >= 0) {
  55          update_course((object)array('id' => $course->id,
  56              'numsections' => $courseformatoptions['numsections']));
  57      }
  58  }
  59  
  60  $url = course_get_url($course);
  61  $url->set_anchor('changenumsections');
  62  // Redirect to where we were..
  63  redirect($url);