course/togglecompletion.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  * Toggles the manual completion flag for a particular activity or course completion
  20  * and the current user.
  21  *
  22  * If by student params: course=2
  23  * If by manager params: course=2&user=4&rolec=3&sesskey=ghfgsdf
  24  *
  25  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26  * @package course
  27  */
  28
  29 require_once('../config.php');
  30 require_once($CFG->libdir.'/completionlib.php');
  31
  32 // Parameters
  33 $cmid = optional_param('id', 0, PARAM_INT);
  34 $courseid = optional_param('course', 0, PARAM_INT);
  35 $confirm = optional_param('confirm', 0, PARAM_BOOL);
  36
  37 // Check if we are marking a user complete via the completion report.
  38 $user = optional_param('user', 0, PARAM_INT);
  39 $rolec = optional_param('rolec', 0, PARAM_INT);
  40
  41 if (!$cmid && !$courseid) {
  42     print_error('invalidarguments');
  43 }
  44
  45 // Process self completion
  46 if ($courseid) {
  47     $PAGE->set_url(new moodle_url('/course/togglecompletion.php', array('course'=>$courseid)));
  48
  49     // Check user is logged in
  50     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
  51     $context = context_course::instance($course->id);
  52     require_login($course);
  53
  54     $completion = new completion_info($course);
  55     $trackeduser = ($user ? $user : $USER->id);
  56
  57     if (!$completion->is_enabled()) {
  58         throw new moodle_exception('completionnotenabled', 'completion');
  59     } else if (!$completion->is_tracked_user($trackeduser)) {
  60         throw new moodle_exception('nottracked', 'completion');
  61     }
  62
  63     if ($user && $rolec) {
  64         require_sesskey();
  65
  66         completion_criteria::factory(array('id'=>$rolec, 'criteriatype'=>COMPLETION_CRITERIA_TYPE_ROLE)); //TODO: this is dumb, because it does not fetch the data?!?!
  67         $criteria = completion_criteria_role::fetch(array('id'=>$rolec));
  68
  69         if ($criteria and user_has_role_assignment($USER->id, $criteria->role, $context->id)) {
  70             $criteria_completions = $completion->get_completions($user, COMPLETION_CRITERIA_TYPE_ROLE);
  71
  72             foreach ($criteria_completions as $criteria_completion) {
  73                 if ($criteria_completion->criteriaid == $rolec) {
  74                     $criteria->complete($criteria_completion);
  75                     break;
  76                 }
  77             }
  78         }
  79
  80         // Return to previous page
  81         $referer = get_local_referer(false);
  82         if (!empty($referer)) {
  83             redirect($referer);
  84         } else {
  85             redirect('view.php?id='.$course->id);
  86         }
  87
  88     } else {
  89
  90         // Confirm with user
  91         if ($confirm and confirm_sesskey()) {
  92             $completion = $completion->get_completion($USER->id, COMPLETION_CRITERIA_TYPE_SELF);
  93
  94             if (!$completion) {
  95                 print_error('noselfcompletioncriteria', 'completion');
  96             }
  97
  98             // Check if the user has already marked themselves as complete
  99             if ($completion->is_complete()) {
 100                 print_error('useralreadymarkedcomplete', 'completion');
 101             }
 102
 103             $completion->mark_complete();
 104
 105             redirect($CFG->wwwroot.'/course/view.php?id='.$courseid);
 106             return;
 107         }
 108
 109         $strconfirm = get_string('confirmselfcompletion', 'completion');
 110         $PAGE->set_title($strconfirm);
 111         $PAGE->set_heading($course->fullname);
 112         $PAGE->navbar->add($strconfirm);
 113         echo $OUTPUT->header();
 114         $buttoncontinue = new single_button(new moodle_url('/course/togglecompletion.php', array('course'=>$courseid, 'confirm'=>1, 'sesskey'=>sesskey())), get_string('yes'), 'post');
 115         $buttoncancel   = new single_button(new moodle_url('/course/view.php', array('id'=>$courseid)), get_string('no'), 'get');
 116         echo $OUTPUT->confirm($strconfirm, $buttoncontinue, $buttoncancel);
 117         echo $OUTPUT->footer();
 118         exit;
 119     }
 120 }
 121
 122
 123 $targetstate = required_param('completionstate', PARAM_INT);
 124 $fromajax    = optional_param('fromajax', 0, PARAM_INT);
 125
 126 $PAGE->set_url('/course/togglecompletion.php', array('id'=>$cmid, 'completionstate'=>$targetstate));
 127
 128 switch($targetstate) {
 129     case COMPLETION_COMPLETE:
 130     case COMPLETION_INCOMPLETE:
 131         break;
 132     default:
 133         print_error('unsupportedstate');
 134 }
 135
 136 // Get course-modules entry
 137 $cm = get_coursemodule_from_id(null, $cmid, null, true, MUST_EXIST);
 138 $course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);
 139
 140 // Check user is logged in
 141 require_login($course, false, $cm);
 142 require_capability('moodle/course:togglecompletion', context_module::instance($cmid));
 143
 144 if (isguestuser() or !confirm_sesskey()) {
 145     print_error('error');
 146 }
 147
 148 // Set up completion object and check it is enabled.
 149 $completion = new completion_info($course);
 150 if (!$completion->is_enabled()) {
 151     throw new moodle_exception('completionnotenabled', 'completion');
 152 }
 153
 154 // NOTE: All users are allowed to toggle their completion state, including
 155 // users for whom completion information is not directly tracked. (I.e. even
 156 // if you are a teacher, or admin who is not enrolled, you can still toggle
 157 // your own completion state. You just don't appear on the reports.)
 158
 159 // Check completion state is manual
 160 if($cm->completion != COMPLETION_TRACKING_MANUAL) {
 161     error_or_ajax('cannotmanualctrack', $fromajax);
 162 }
 163
 164 $completion->update_state($cm, $targetstate);
 165
 166 // And redirect back to course
 167 if ($fromajax) {
 168     print 'OK';
 169 } else {
 170     // In case of use in other areas of code we allow a 'backto' parameter,
 171     // otherwise go back to course page
 172
 173     if ($backto = optional_param('backto', null, PARAM_URL)) {
 174         redirect($backto);
 175     } else {
 176         redirect(course_get_url($course, $cm->sectionnum));
 177     }
 178 }
 179
 180 // utility functions
 181
 182 function error_or_ajax($message, $fromajax) {
 183     if ($fromajax) {
 184         print get_string($message, 'error');
 185         exit;
 186     } else {
 187         print_error($message);
 188     }
 189 }
 190