blocks/course_list/block_course_list.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  * Course list block.
  19  *
  20  * @package    block_course_list
  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 include_once($CFG->dirroot . '/course/lib.php');
  26 include_once($CFG->libdir . '/coursecatlib.php');
  27
  28 class block_course_list extends block_list {
  29     function init() {
  30         $this->title = get_string('pluginname', 'block_course_list');
  31     }
  32
  33     function has_config() {
  34         return true;
  35     }
  36
  37     function get_content() {
  38         global $CFG, $USER, $DB, $OUTPUT;
  39
  40         if($this->content !== NULL) {
  41             return $this->content;
  42         }
  43
  44         $this->content = new stdClass;
  45         $this->content->items = array();
  46         $this->content->icons = array();
  47         $this->content->footer = '';
  48
  49         $icon  = '<img src="' . $OUTPUT->pix_url('i/course') . '" class="icon" alt="" />';
  50
  51         $adminseesall = true;
  52         if (isset($CFG->block_course_list_adminview)) {
  53            if ( $CFG->block_course_list_adminview == 'own'){
  54                $adminseesall = false;
  55            }
  56         }
  57
  58         if (empty($CFG->disablemycourses) and isloggedin() and !isguestuser() and
  59           !(has_capability('moodle/course:update', context_system::instance()) and $adminseesall)) {    // Just print My Courses
  60             // As this is producing navigation sort order should default to $CFG->navsortmycoursessort instead
  61             // of using the default.
  62             if (!empty($CFG->navsortmycoursessort)) {
  63                 $sortorder = 'visible DESC, ' . $CFG->navsortmycoursessort . ' ASC';
  64             } else {
  65                 $sortorder = 'visible DESC, sortorder ASC';
  66             }
  67             if ($courses = enrol_get_my_courses(NULL, $sortorder)) {
  68                 foreach ($courses as $course) {
  69                     $coursecontext = context_course::instance($course->id);
  70                     $linkcss = $course->visible ? "" : " class=\"dimmed\" ";
  71                     $this->content->items[]="<a $linkcss title=\"" . format_string($course->shortname, true, array('context' => $coursecontext)) . "\" ".
  72                                "href=\"$CFG->wwwroot/course/view.php?id=$course->id\">".$icon.format_string(get_course_display_name_for_list($course)). "</a>";
  73                 }
  74                 $this->title = get_string('mycourses');
  75             /// If we can update any course of the view all isn't hidden, show the view all courses link
  76                 if (has_capability('moodle/course:update', context_system::instance()) || empty($CFG->block_course_list_hideallcourseslink)) {
  77                     $this->content->footer = "<a href=\"$CFG->wwwroot/course/index.php\">".get_string("fulllistofcourses")."</a> ...";
  78                 }
  79             }
  80             $this->get_remote_courses();
  81             if ($this->content->items) { // make sure we don't return an empty list
  82                 return $this->content;
  83             }
  84         }
  85
  86         $categories = coursecat::get(0)->get_children();  // Parent = 0   ie top-level categories only
  87         if ($categories) {   //Check we have categories
  88             if (count($categories) > 1 || (count($categories) == 1 && $DB->count_records('course') > 200)) {     // Just print top level category links
  89                 foreach ($categories as $category) {
  90                     $categoryname = $category->get_formatted_name();
  91                     $linkcss = $category->visible ? "" : " class=\"dimmed\" ";
  92                     $this->content->items[]="<a $linkcss href=\"$CFG->wwwroot/course/index.php?categoryid=$category->id\">".$icon . $categoryname . "</a>";
  93                 }
  94             /// If we can update any course of the view all isn't hidden, show the view all courses link
  95                 if (has_capability('moodle/course:update', context_system::instance()) || empty($CFG->block_course_list_hideallcourseslink)) {
  96                     $this->content->footer .= "<a href=\"$CFG->wwwroot/course/index.php\">".get_string('fulllistofcourses').'</a> ...';
  97                 }
  98                 $this->title = get_string('categories');
  99             } else {                          // Just print course names of single category
 100                 $category = array_shift($categories);
 101                 $courses = get_courses($category->id);
 102
 103                 if ($courses) {
 104                     foreach ($courses as $course) {
 105                         $coursecontext = context_course::instance($course->id);
 106                         $linkcss = $course->visible ? "" : " class=\"dimmed\" ";
 107
 108                         $this->content->items[]="<a $linkcss title=\""
 109                                    . format_string($course->shortname, true, array('context' => $coursecontext))."\" ".
 110                                    "href=\"$CFG->wwwroot/course/view.php?id=$course->id\">"
 111                                    .$icon. format_string(get_course_display_name_for_list($course), true, array('context' => context_course::instance($course->id))) . "</a>";
 112                     }
 113                 /// If we can update any course of the view all isn't hidden, show the view all courses link
 114                     if (has_capability('moodle/course:update', context_system::instance()) || empty($CFG->block_course_list_hideallcourseslink)) {
 115                         $this->content->footer .= "<a href=\"$CFG->wwwroot/course/index.php\">".get_string('fulllistofcourses').'</a> ...';
 116                     }
 117                     $this->get_remote_courses();
 118                 } else {
 119
 120                     $this->content->icons[] = '';
 121                     $this->content->items[] = get_string('nocoursesyet');
 122                     if (has_capability('moodle/course:create', context_coursecat::instance($category->id))) {
 123                         $this->content->footer = '<a href="'.$CFG->wwwroot.'/course/edit.php?category='.$category->id.'">'.get_string("addnewcourse").'</a> ...';
 124                     }
 125                     $this->get_remote_courses();
 126                 }
 127                 $this->title = get_string('courses');
 128             }
 129         }
 130
 131         return $this->content;
 132     }
 133
 134     function get_remote_courses() {
 135         global $CFG, $USER, $OUTPUT;
 136
 137         if (!is_enabled_auth('mnet')) {
 138             // no need to query anything remote related
 139             return;
 140         }
 141
 142         $icon = '<img src="'.$OUTPUT->pix_url('i/mnethost') . '" class="icon" alt="" />';
 143
 144         // shortcut - the rest is only for logged in users!
 145         if (!isloggedin() || isguestuser()) {
 146             return false;
 147         }
 148
 149         if ($courses = get_my_remotecourses()) {
 150             $this->content->items[] = get_string('remotecourses','mnet');
 151             $this->content->icons[] = '';
 152             foreach ($courses as $course) {
 153                 $this->content->items[]="<a title=\"" . format_string($course->shortname, true) . "\" ".
 154                     "href=\"{$CFG->wwwroot}/auth/mnet/jump.php?hostid={$course->hostid}&amp;wantsurl=/course/view.php?id={$course->remoteid}\">"
 155                     .$icon. format_string(get_course_display_name_for_list($course)) . "</a>";
 156             }
 157             // if we listed courses, we are done
 158             return true;
 159         }
 160
 161         if ($hosts = get_my_remotehosts()) {
 162             $this->content->items[] = get_string('remotehosts', 'mnet');
 163             $this->content->icons[] = '';
 164             foreach($USER->mnet_foreign_host_array as $somehost) {
 165                 $this->content->items[] = $somehost['count'].get_string('courseson','mnet').'<a title="'.$somehost['name'].'" href="'.$somehost['url'].'">'.$icon.$somehost['name'].'</a>';
 166             }
 167             // if we listed hosts, done
 168             return true;
 169         }
 170
 171         return false;
 172     }
 173
 174     /**
 175      * Returns the role that best describes the course list block.
 176      *
 177      * @return string
 178      */
 179     public function get_aria_role() {
 180         return 'navigation';
 181     }
 182 }
 183
 184