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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   * User backpack settings page.
  19   *
  20   * @package    core
  21   * @subpackage badges
  22   * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
  25   */
  26  
  27  require_once(__DIR__ . '/../config.php');
  28  require_once($CFG->libdir . '/badgeslib.php');
  29  require_once($CFG->dirroot . '/badges/backpack_form.php');
  30  require_once($CFG->dirroot . '/badges/lib/backpacklib.php');
  31  
  32  require_login();
  33  
  34  if (empty($CFG->enablebadges)) {
  35      print_error('badgesdisabled', 'badges');
  36  }
  37  
  38  $context = context_user::instance($USER->id);
  39  require_capability('moodle/badges:manageownbadges', $context);
  40  
  41  $disconnect = optional_param('disconnect', false, PARAM_BOOL);
  42  
  43  if (empty($CFG->badges_allowexternalbackpack)) {
  44      redirect($CFG->wwwroot);
  45  }
  46  
  47  $PAGE->set_url(new moodle_url('/badges/mybackpack.php'));
  48  $PAGE->set_context($context);
  49  
  50  $title = get_string('backpackdetails', 'badges');
  51  $PAGE->set_title($title);
  52  $PAGE->set_heading(fullname($USER));
  53  $PAGE->set_pagelayout('mydashboard');
  54  
  55  $backpack = $DB->get_record('badge_backpack', array('userid' => $USER->id));
  56  $badgescache = cache::make('core', 'externalbadges');
  57  
  58  if ($disconnect && $backpack) {
  59      require_sesskey();
  60      $DB->delete_records('badge_external', array('backpackid' => $backpack->id));
  61      $DB->delete_records('badge_backpack', array('userid' => $USER->id));
  62      $badgescache->delete($USER->id);
  63      redirect(new moodle_url('/badges/mybackpack.php'));
  64  }
  65  
  66  if ($backpack) {
  67      // If backpack is connected, need to select collections.
  68      $bp = new OpenBadgesBackpackHandler($backpack);
  69      $request = $bp->get_collections();
  70      if (empty($request->groups)) {
  71          $params['nogroups'] = get_string('error:nogroups', 'badges');
  72      } else {
  73          $params['groups'] = $request->groups;
  74      }
  75      $params['email'] = $backpack->email;
  76      $params['selected'] = $DB->get_fieldset_select('badge_external', 'collectionid', 'backpackid = :bid', array('bid' => $backpack->id));
  77      $params['backpackid'] = $backpack->id;
  78      $form = new edit_collections_form(new moodle_url('/badges/mybackpack.php'), $params);
  79  
  80      if ($form->is_cancelled()) {
  81          redirect(new moodle_url('/badges/mybadges.php'));
  82      } else if ($data = $form->get_data()) {
  83          if (empty($data->group)) {
  84              redirect(new moodle_url('/badges/mybadges.php'));
  85          } else {
  86              $groups = array_filter($data->group);
  87          }
  88  
  89          // Remove all unselected collections if there are any.
  90          $sqlparams = array('backpack' => $backpack->id);
  91          $select = 'backpackid = :backpack ';
  92          if (!empty($groups)) {
  93              list($grouptest, $groupparams) = $DB->get_in_or_equal($groups, SQL_PARAMS_NAMED, 'col', false);
  94              $select .= ' AND collectionid ' . $grouptest;
  95              $sqlparams = array_merge($sqlparams, $groupparams);
  96          }
  97          $DB->delete_records_select('badge_external', $select, $sqlparams);
  98  
  99          // Insert selected collections if they are not in database yet.
 100          foreach ($groups as $group) {
 101              $obj = new stdClass();
 102              $obj->backpackid = $data->backpackid;
 103              $obj->collectionid = (int) $group;
 104              if (!$DB->record_exists('badge_external', array('backpackid' => $obj->backpackid, 'collectionid' => $obj->collectionid))) {
 105                  $DB->insert_record('badge_external', $obj);
 106              }
 107          }
 108          $badgescache->delete($USER->id);
 109          redirect(new moodle_url('/badges/mybadges.php'));
 110      }
 111  } else {
 112      // If backpack is not connected, need to connect first.
 113      $form = new edit_backpack_form();
 114  
 115      if ($form->is_cancelled()) {
 116          redirect(new moodle_url('/badges/mybadges.php'));
 117      } else if ($data = $form->get_data()) {
 118          $bp = new OpenBadgesBackpackHandler($data);
 119  
 120          $obj = new stdClass();
 121          $obj->userid = $data->userid;
 122          $obj->email = $data->email;
 123          $obj->backpackurl = $data->backpackurl;
 124          $obj->backpackuid = $bp->curl_request('user')->userId;
 125          $obj->autosync = 0;
 126          $obj->password = '';
 127          $DB->insert_record('badge_backpack', $obj);
 128  
 129          redirect(new moodle_url('/badges/mybackpack.php'));
 130      }
 131  }
 132  
 133  echo $OUTPUT->header();
 134  echo $OUTPUT->heading($title);
 135  $form->display();
 136  echo $OUTPUT->footer();