blocks/mentees/block_mentees.php

   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  * Mentees block.
  19  *
  20  * @package    block_mentees
  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_mentees extends block_base {
  26
  27     function init() {
  28         $this->title = get_string('pluginname', 'block_mentees');
  29     }
  30
  31     function applicable_formats() {
  32         return array('all' => true, 'tag' => false);
  33     }
  34
  35     function specialization() {
  36         $this->title = isset($this->config->title) ? $this->config->title : get_string('newmenteesblock', 'block_mentees');
  37     }
  38
  39     function instance_allow_multiple() {
  40         return true;
  41     }
  42
  43     function get_content() {
  44         global $CFG, $USER, $DB;
  45
  46         if ($this->content !== NULL) {
  47             return $this->content;
  48         }
  49
  50         $this->content = new stdClass();
  51
  52         // get all the mentees, i.e. users you have a direct assignment to
  53         $allusernames = get_all_user_name_fields(true, 'u');
  54         if ($usercontexts = $DB->get_records_sql("SELECT c.instanceid, c.instanceid, $allusernames
  55                                                     FROM {role_assignments} ra, {context} c, {user} u
  56                                                    WHERE ra.userid = ?
  57                                                          AND ra.contextid = c.id
  58                                                          AND c.instanceid = u.id
  59                                                          AND c.contextlevel = ".CONTEXT_USER, array($USER->id))) {
  60
  61             $this->content->text = '<ul>';
  62             foreach ($usercontexts as $usercontext) {
  63                 $this->content->text .= '<li><a href="'.$CFG->wwwroot.'/user/view.php?id='.$usercontext->instanceid.'&amp;course='.SITEID.'">'.fullname($usercontext).'</a></li>';
  64             }
  65             $this->content->text .= '</ul>';
  66         }
  67
  68         $this->content->footer = '';
  69
  70         return $this->content;
  71     }
  72
  73     /**
  74      * Returns true if the block can be docked.
  75      * The mentees block can only be docked if it has a non-empty title.
  76      * @return bool
  77      */
  78     public function instance_can_be_docked() {
  79         return parent::instance_can_be_docked() && isset($this->config->title) && !empty($this->config->title);
  80     }
  81 }
  82