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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   * Form related badges.
  18   *
  19   * @package    core
  20   * @subpackage badges
  21   * @copyright  2018 Tung Thai
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   * @author     Tung Thai <Tung.ThaiDuc@nashtechglobal.com>
  24   */
  25  defined('MOODLE_INTERNAL') || die();
  26  require_once($CFG->libdir . '/formslib.php');
  27  require_once($CFG->libdir . '/badgeslib.php');
  28  
  29  /**
  30   * Form to edit badge details.
  31   *
  32   * @copyright 2018 Tung Thai
  33   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  34   * @author    Tung Thai <Tung.ThaiDuc@nashtechglobal.com>
  35   */
  36  class edit_relatedbadge_form extends moodleform {
  37  
  38      /**
  39       * Defines the form.
  40       */
  41      public function definition() {
  42          $mform = $this->_form;
  43          $badge = $this->_customdata['badge'];
  44          $badgesarray = $this->get_badges_option($badge);
  45          $mform->addElement('header', 'alignment', get_string('relatedbages', 'badges'));
  46          if (!$badgesarray) {
  47              $badgesarray = array(get_string('none'));
  48              $attributes = array('size' => '3', 'disabled' => true, 'style' => 'min-width: 200px');
  49          } else {
  50              $attributes = array('size' => '10');
  51          }
  52          $mform->addElement('select', 'relatedbadgeids', get_string('relatedbages', 'badges'), $badgesarray, $attributes);
  53          $mform->getElement('relatedbadgeids')->setMultiple(true);
  54          $this->add_action_buttons();
  55  
  56          // Freeze all elements if badge is active or locked.
  57          if ($badge->is_active() || $badge->is_locked()) {
  58              $mform->hardFreezeAllVisibleExcept(array());
  59          }
  60      }
  61  
  62      /**
  63       * Validates form data.
  64       *
  65       * @param array $data submitted data.
  66       * @param array $files submitted files.
  67       * @return array $errors An array of errors.
  68       */
  69      public function validation($data, $files) {
  70          $errors = parent::validation($data, $files);
  71          return $errors;
  72      }
  73  
  74      /**
  75       * Return list badge of a course or list badge site.
  76       *
  77       * @param object $badge Badge object.
  78       * @return array $options An array the badges.
  79       */
  80      public function get_badges_option($badge) {
  81          global $DB;
  82          $sql = "SELECT b.id, b.name, b.version, b.language, b.type
  83                    FROM {badge} b
  84                   WHERE b.id <> :badgeid
  85                         AND b.id NOT IN (
  86                              SELECT DISTINCT b.id
  87                                FROM {badge_related} br
  88                                JOIN {badge} b ON (br.relatedbadgeid = b.id OR br.badgeid = b.id)
  89                               WHERE (br.badgeid = :badgeid2 OR br.relatedbadgeid = :badgeid3) AND b.id != :badgeid4)";
  90          $params = ['badgeid' => $badge->id, 'badgeid2' => $badge->id, 'badgeid3' => $badge->id, 'badgeid4' => $badge->id];
  91          if ($badge->type == BADGE_TYPE_COURSE) {
  92              $sql .= " AND (b.courseid = :courseid OR b.type = :badgetype)";
  93              $params['courseid'] = $badge->courseid;
  94              $params['badgetype'] = BADGE_TYPE_SITE;
  95          }
  96  
  97          $records = $DB->get_records_sql($sql, $params);
  98          $languages = get_string_manager()->get_list_of_languages();
  99          $options = array();
 100          foreach ($records as $record) {
 101              $language = isset($languages[$record->language]) ? $languages[$record->language] : '';
 102              $options[$record->id] = $record->name .
 103                  ' (version: ' . $record->version . ', language: ' . $language . ', ' .
 104                  ($record->type == BADGE_TYPE_COURSE ? get_string('badgesview', 'badges') : get_string('sitebadges', 'badges')) .
 105                  ')';
 106          }
 107          return $options;
 108      }
 109  
 110  }