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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  /**
  18   * Form to edit a users preferred language
  19   *
  20   * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  21   * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22   * @package core_user
  23   */
  24  
  25  if (!defined('MOODLE_INTERNAL')) {
  26      die('Direct access to this script is forbidden.');    //  It must be included from a Moodle page.
  27  }
  28  
  29  require_once($CFG->dirroot.'/lib/formslib.php');
  30  
  31  /**
  32   * Class user_edit_form.
  33   *
  34   * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  35   * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  36   */
  37  class user_edit_language_form extends moodleform {
  38  
  39      /**
  40       * Define the form.
  41       */
  42      public function definition () {
  43          global $CFG, $COURSE, $USER;
  44  
  45          $mform = $this->_form;
  46          $userid = $USER->id;
  47  
  48          if (is_array($this->_customdata)) {
  49              if (array_key_exists('userid', $this->_customdata)) {
  50                  $userid = $this->_customdata['userid'];
  51              }
  52          }
  53  
  54          // Add some extra hidden fields.
  55          $mform->addElement('hidden', 'id');
  56          $mform->setType('id', PARAM_INT);
  57          $mform->addElement('hidden', 'course', $COURSE->id);
  58          $mform->setType('course', PARAM_INT);
  59  
  60          $mform->addElement('select', 'lang', get_string('preferredlanguage'), get_string_manager()->get_list_of_translations());
  61          $mform->setDefault('lang', core_user::get_property_default('lang'));
  62  
  63          $this->add_action_buttons(true, get_string('savechanges'));
  64      }
  65  
  66      /**
  67       * Extend the form definition after the data has been parsed.
  68       */
  69      public function definition_after_data() {
  70          global $CFG, $DB, $OUTPUT;
  71  
  72          $mform = $this->_form;
  73  
  74          // If language does not exist, use site default lang.
  75          if ($langsel = $mform->getElementValue('lang')) {
  76              $lang = reset($langsel);
  77              // Check lang exists.
  78              if (!get_string_manager()->translation_exists($lang, false)) {
  79                  $langel =& $mform->getElement('lang');
  80                  $langel->setValue(core_user::get_property_default('lang'));
  81              }
  82          }
  83  
  84      }
  85  
  86  }
  87  
  88