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   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   * Book module upgrade code
  18   *
  19   * @package    mod_book
  20   * @copyright  2009-2011 Petr Skoda {@link http://skodak.org}
  21   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22   */
  23  
  24  defined('MOODLE_INTERNAL') || die;
  25  
  26  /**
  27   * Book module upgrade task
  28   *
  29   * @param int $oldversion the version we are upgrading from
  30   * @return bool always true
  31   */
  32  function xmldb_book_upgrade($oldversion) {
  33      global $CFG, $DB;
  34  
  35      $dbman = $DB->get_manager();
  36  
  37      // Moodle v2.8.0 release upgrade line.
  38      // Put any upgrade step following this.
  39  
  40      if ($oldversion < 2014111800) {
  41  
  42          // Define field navstyle to be added to book.
  43          $table = new xmldb_table('book');
  44          $field = new xmldb_field('navstyle', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '1', 'numbering');
  45  
  46          // Conditionally launch add field navstyle.
  47          if (!$dbman->field_exists($table, $field)) {
  48              $dbman->add_field($table, $field);
  49          }
  50  
  51          // Book savepoint reached.
  52          upgrade_mod_savepoint(true, 2014111800, 'book');
  53      }
  54  
  55      // Moodle v2.9.0 release upgrade line.
  56      // Put any upgrade step following this.
  57  
  58      // Moodle v3.0.0 release upgrade line.
  59      // Put any upgrade step following this.
  60  
  61      // Moodle v3.1.0 release upgrade line.
  62      // Put any upgrade step following this.
  63  
  64      return true;
  65  }