blocks/community/block_community.php

   1 <?PHP
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /*
  19  * @package    blocks
  20  * @subpackage community
  21  * @author     Jerome Mouneyrac <jerome@mouneyrac.com>
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
  23  * @copyright  (C) 1999 onwards Martin Dougiamas  http://dougiamas.com
  24  *
  25  * The community block
  26  */
  27
  28 class block_community extends block_list {
  29
  30     function init() {
  31         $this->title = get_string('pluginname', 'block_community');
  32     }
  33
  34     function user_can_addto($page) {
  35         // Don't allow people to add the block if they can't even use it
  36         if (!has_capability('moodle/community:add', $page->context)) {
  37             return false;
  38         }
  39
  40         return parent::user_can_addto($page);
  41     }
  42
  43     function user_can_edit() {
  44         // Don't allow people to edit the block if they can't even use it
  45         if (!has_capability('moodle/community:add',
  46                         get_context_instance_by_id($this->instance->parentcontextid))) {
  47             return false;
  48         }
  49         return parent::user_can_edit();
  50     }
  51
  52     function get_content() {
  53         global $CFG, $OUTPUT, $USER;
  54
  55         $coursecontext = get_context_instance_by_id($this->instance->parentcontextid);
  56
  57         if (!has_capability('moodle/community:add', $coursecontext)
  58                 or $this->content !== NULL) {
  59             return $this->content;
  60         }
  61
  62         $this->content = new stdClass();
  63         $this->content->items = array();
  64         $this->content->icons = array();
  65         $this->content->footer = '';
  66
  67         if (!isloggedin()) {
  68             return $this->content;
  69         }
  70
  71         $icon = html_writer::empty_tag('img', array('src' => $OUTPUT->pix_url('i/group'),
  72                     'class' => 'icon', 'alt' => get_string('addcourse', 'block_community')));
  73         $addcourseurl = new moodle_url('/blocks/community/communitycourse.php',
  74                         array('add' => true, 'courseid' => $coursecontext->instanceid));
  75         $searchlink = html_writer::tag('a', $icon . '&nbsp;' . get_string('addcourse', 'block_community'),
  76                         array('href' => $addcourseurl->out(false)));
  77         $this->content->items[] = $searchlink;
  78
  79         require_once($CFG->dirroot . '/blocks/community/locallib.php');
  80         $communitymanager = new block_community_manager();
  81         $courses = $communitymanager->block_community_get_courses($USER->id);
  82         if ($courses) {
  83             $this->content->items[] = html_writer::empty_tag('hr');
  84             $this->content->icons[] = '';
  85             $this->content->items[] = get_string('mycommunities', 'block_community');
  86             $this->content->icons[] = '';
  87             foreach ($courses as $course) {
  88                 //delete link
  89                 $deleteicon = html_writer::empty_tag('img',
  90                                 array('src' => $OUTPUT->pix_url('t/delete'),
  91                                     'alt' => get_string('removecommunitycourse', 'block_community')));
  92                 $deleteurl = new moodle_url('/blocks/community/communitycourse.php',
  93                                 array('remove' => true,
  94                                     'courseid' => $coursecontext->instanceid,
  95                                     'communityid' => $course->id, 'sesskey' => sesskey()));
  96                 $deleteatag = html_writer::tag('a', $deleteicon, array('href' => $deleteurl));
  97
  98                 $courselink = html_writer::tag('a', $course->coursename,
  99                                 array('href' => $course->courseurl));
 100                 $this->content->items[] = $courselink . ' ' . $deleteatag;
 101                 $this->content->icons[] = '';
 102             }
 103         }
 104
 105         return $this->content;
 106     }
 107
 108 }
 109