[Summary view] [Print] [Text view]

   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   * Participants block
  19   *
  20   * @package    block_participants
  21   * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  class block_participants extends block_list {
  26      function init() {
  27          $this->title = get_string('pluginname', 'block_participants');
  28      }
  29  
  30      function get_content() {
  31  
  32          global $CFG, $OUTPUT;
  33  
  34          if (empty($this->instance)) {
  35              $this->content = '';
  36              return $this->content;
  37          }
  38  
  39          $this->content = new stdClass();
  40          $this->content->items = array();
  41          $this->content->icons = array();
  42          $this->content->footer = '';
  43  
  44          // user/index.php expect course context, so get one if page has module context.
  45          $currentcontext = $this->page->context->get_course_context(false);
  46  
  47          if (empty($currentcontext)) {
  48              $this->content = '';
  49              return $this->content;
  50          } else if ($this->page->course->id == SITEID) {
  51              if (!has_capability('moodle/site:viewparticipants', context_system::instance())) {
  52                  $this->content = '';
  53                  return $this->content;
  54              }
  55          } else {
  56              if (!has_capability('moodle/course:viewparticipants', $currentcontext)) {
  57                  $this->content = '';
  58                  return $this->content;
  59              }
  60          }
  61  
  62          $icon = '<img src="'.$OUTPUT->pix_url('i/users') . '" class="icon" alt="" />';
  63          $this->content->items[] = '<a title="'.get_string('listofallpeople').'" href="'.
  64                                    $CFG->wwwroot.'/user/index.php?contextid='.$currentcontext->id.'">'.$icon.get_string('participants').'</a>';
  65  
  66          return $this->content;
  67      }
  68  
  69      // my moodle can only have SITEID and it's redundant here, so take it away
  70      function applicable_formats() {
  71          return array('all' => true, 'my' => false, 'tag' => false);
  72      }
  73  
  74  }