course/mod.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  * Moves, adds, updates, duplicates or deletes modules in a course
  20  *
  21  * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package course
  24  */
  25
  26 require("../config.php");
  27 require_once("lib.php");
  28
  29 $sectionreturn = optional_param('sr', null, PARAM_INT);
  30 $add           = optional_param('add', '', PARAM_ALPHANUM);
  31 $type          = optional_param('type', '', PARAM_ALPHA);
  32 $indent        = optional_param('indent', 0, PARAM_INT);
  33 $update        = optional_param('update', 0, PARAM_INT);
  34 $duplicate     = optional_param('duplicate', 0, PARAM_INT);
  35 $hide          = optional_param('hide', 0, PARAM_INT);
  36 $stealth       = optional_param('stealth', 0, PARAM_INT);
  37 $show          = optional_param('show', 0, PARAM_INT);
  38 $copy          = optional_param('copy', 0, PARAM_INT);
  39 $moveto        = optional_param('moveto', 0, PARAM_INT);
  40 $movetosection = optional_param('movetosection', 0, PARAM_INT);
  41 $delete        = optional_param('delete', 0, PARAM_INT);
  42 $course        = optional_param('course', 0, PARAM_INT);
  43 $groupmode     = optional_param('groupmode', -1, PARAM_INT);
  44 $cancelcopy    = optional_param('cancelcopy', 0, PARAM_BOOL);
  45 $confirm       = optional_param('confirm', 0, PARAM_BOOL);
  46
  47 // This page should always redirect
  48 $url = new moodle_url('/course/mod.php');
  49 foreach (compact('indent','update','hide','show','copy','moveto','movetosection','delete','course','cancelcopy','confirm') as $key=>$value) {
  50     if ($value !== 0) {
  51         $url->param($key, $value);
  52     }
  53 }
  54 // Force it to be null if it's not a valid section number.
  55 if ($sectionreturn < 0) {
  56     $sectionreturn = null;
  57 }
  58 $urloptions = [];
  59 if (!is_null($sectionreturn)) {
  60     $url->param('sr', $sectionreturn);
  61     $urloptions['sr'] = $sectionreturn;
  62 }
  63 if ($add !== '') {
  64     $url->param('add', $add);
  65 }
  66 if ($type !== '') {
  67     $url->param('type', $type);
  68 }
  69 if ($groupmode !== '') {
  70     $url->param('groupmode', $groupmode);
  71 }
  72 $PAGE->set_url($url);
  73
  74 require_login();
  75
  76 //check if we are adding / editing a module that has new forms using formslib
  77 if (!empty($add)) {
  78     $id          = required_param('id', PARAM_INT);
  79     $section     = required_param('section', PARAM_INT);
  80     $type        = optional_param('type', '', PARAM_ALPHA);
  81     $returntomod = optional_param('return', 0, PARAM_BOOL);
  82     $beforemod   = optional_param('beforemod', 0, PARAM_INT);
  83
  84     $params = [
  85         'add' => $add,
  86         'type' => $type,
  87         'course' => $id,
  88         'section' => $section,
  89         'return' => $returntomod,
  90         'beforemod' => $beforemod,
  91     ];
  92     if (!is_null($sectionreturn)) {
  93         $params['sr'] = $sectionreturn;
  94     }
  95
  96     redirect(
  97         new moodle_url(
  98             '/course/modedit.php',
  99             $params,
 100         )
 101     );
 102
 103 } else if (!empty($update)) {
 104     $cm = get_coursemodule_from_id('', $update, 0, true, MUST_EXIST);
 105     $returntomod = optional_param('return', 0, PARAM_BOOL);
 106
 107     $params = [
 108         'update' => $update,
 109         'return' => $returntomod,
 110     ];
 111     if (!is_null($sectionreturn)) {
 112         $params['sr'] = $sectionreturn;
 113     }
 114     redirect(
 115         new moodle_url(
 116             '/course/modedit.php',
 117             $params,
 118         )
 119     );
 120 } else if (!empty($duplicate) and confirm_sesskey()) {
 121      $cm     = get_coursemodule_from_id('', $duplicate, 0, true, MUST_EXIST);
 122      $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 123
 124     require_login($course, false, $cm);
 125     $modcontext = context_module::instance($cm->id);
 126     require_capability('moodle/course:manageactivities', $modcontext);
 127
 128     // Duplicate the module.
 129     $newcm = duplicate_module($course, $cm);
 130     redirect(course_get_url($course, $cm->sectionnum, $urloptions));
 131
 132 } else if (!empty($delete)) {
 133     $cm     = get_coursemodule_from_id('', $delete, 0, true, MUST_EXIST);
 134     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 135
 136     require_login($course, false, $cm);
 137     $modcontext = context_module::instance($cm->id);
 138     require_capability('moodle/course:manageactivities', $modcontext);
 139
 140     $return = course_get_url($course, $cm->sectionnum, $urloptions);
 141
 142     if (!$confirm or !confirm_sesskey()) {
 143         $fullmodulename = get_string('modulename', $cm->modname);
 144
 145         $optionsyes = [
 146             'confirm' => 1,
 147             'delete' => $cm->id,
 148             'sesskey' => sesskey(),
 149         ];
 150         if (!is_null($sectionreturn)) {
 151             $optionsyes['sr'] = $sectionreturn;
 152         }
 153         $strdeletecheck = get_string('deletecheck', '', $fullmodulename);
 154         $strparams = (object)array('type' => $fullmodulename, 'name' => $cm->name);
 155         $strdeletechecktypename = get_string('deletechecktypename', '', $strparams);
 156
 157         $PAGE->set_pagetype('mod-' . $cm->modname . '-delete');
 158         $PAGE->set_title($strdeletecheck);
 159         $PAGE->set_heading($course->fullname);
 160         $PAGE->navbar->add($strdeletecheck);
 161
 162         echo $OUTPUT->header();
 163         echo $OUTPUT->box_start('noticebox');
 164         $formcontinue = new single_button(new moodle_url("$CFG->wwwroot/course/mod.php", $optionsyes), get_string('yes'));
 165         $formcancel = new single_button($return, get_string('no'), 'get');
 166         echo $OUTPUT->confirm($strdeletechecktypename, $formcontinue, $formcancel);
 167         echo $OUTPUT->box_end();
 168         echo $OUTPUT->footer();
 169
 170         exit;
 171     }
 172
 173     // Delete the module.
 174     course_delete_module($cm->id);
 175
 176     redirect($return);
 177 }
 178
 179
 180 if ((!empty($movetosection) or !empty($moveto)) and confirm_sesskey()) {
 181     $cm     = get_coursemodule_from_id('', $USER->activitycopy, 0, true, MUST_EXIST);
 182     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 183
 184     require_login($course, false, $cm);
 185     $coursecontext = context_course::instance($course->id);
 186     $modcontext = context_module::instance($cm->id);
 187     require_capability('moodle/course:manageactivities', $modcontext);
 188
 189     if (!empty($movetosection)) {
 190         if (!$section = $DB->get_record('course_sections', array('id'=>$movetosection, 'course'=>$cm->course))) {
 191             throw new \moodle_exception('sectionnotexist');
 192         }
 193         $beforecm = NULL;
 194
 195     } else {                      // normal moveto
 196         if (!$beforecm = get_coursemodule_from_id('', $moveto, $cm->course, true)) {
 197             throw new \moodle_exception('invalidcoursemodule');
 198         }
 199         if (!$section = $DB->get_record('course_sections', array('id'=>$beforecm->section, 'course'=>$cm->course))) {
 200             throw new \moodle_exception('sectionnotexist');
 201         }
 202     }
 203
 204     if (!ismoving($section->course)) {
 205         throw new \moodle_exception('needcopy', '', "view.php?id=$section->course");
 206     }
 207
 208     moveto_module($cm, $section, $beforecm);
 209
 210     $sectionreturn = $USER->activitycopysectionreturn;
 211     unset($USER->activitycopy);
 212     unset($USER->activitycopycourse);
 213     unset($USER->activitycopyname);
 214     unset($USER->activitycopysectionreturn);
 215
 216     redirect(course_get_url($course, $section->section, $urloptions));
 217
 218 } else if (!empty($indent) and confirm_sesskey()) {
 219     $id = required_param('id', PARAM_INT);
 220
 221     $cm     = get_coursemodule_from_id('', $id, 0, true, MUST_EXIST);
 222     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 223
 224     require_login($course, false, $cm);
 225     $coursecontext = context_course::instance($course->id);
 226     $modcontext = context_module::instance($cm->id);
 227     require_capability('moodle/course:manageactivities', $modcontext);
 228
 229     $cm->indent += $indent;
 230
 231     if ($cm->indent < 0) {
 232         $cm->indent = 0;
 233     }
 234
 235     $DB->set_field('course_modules', 'indent', $cm->indent, array('id'=>$cm->id));
 236
 237     \course_modinfo::purge_course_module_cache($cm->course, $cm->id);
 238     // Rebuild invalidated module cache.
 239     rebuild_course_cache($cm->course, false, true);
 240
 241     redirect(course_get_url($course, $cm->sectionnum, $urloptions));
 242
 243 } else if (!empty($hide) and confirm_sesskey()) {
 244     $cm     = get_coursemodule_from_id('', $hide, 0, true, MUST_EXIST);
 245     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 246
 247     require_login($course, false, $cm);
 248     $coursecontext = context_course::instance($course->id);
 249     $modcontext = context_module::instance($cm->id);
 250     require_capability('moodle/course:activityvisibility', $modcontext);
 251
 252     if (set_coursemodule_visible($cm->id, 0)) {
 253         \core\event\course_module_updated::create_from_cm($cm, $modcontext)->trigger();
 254     }
 255     redirect(course_get_url($course, $cm->sectionnum, $urloptions));
 256
 257 } else if (!empty($stealth) and confirm_sesskey()) {
 258     list($course, $cm) = get_course_and_cm_from_cmid($stealth);
 259     require_login($course, false, $cm);
 260     require_capability('moodle/course:activityvisibility', $cm->context);
 261
 262     if (set_coursemodule_visible($cm->id, 1, 0)) {
 263         \core\event\course_module_updated::create_from_cm($cm)->trigger();
 264     }
 265     redirect(course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn)));
 266
 267 } else if (!empty($show) and confirm_sesskey()) {
 268     list($course, $cm) = get_course_and_cm_from_cmid($show);
 269     require_login($course, false, $cm);
 270     require_capability('moodle/course:activityvisibility', $cm->context);
 271     $section = $cm->get_section_info();
 272
 273     if (set_coursemodule_visible($cm->id, 1)) {
 274         \core\event\course_module_updated::create_from_cm($cm)->trigger();
 275     }
 276     redirect(course_get_url($course, $section->section, $urloptions));
 277
 278 } else if ($groupmode > -1 and confirm_sesskey()) {
 279     $id = required_param('id', PARAM_INT);
 280
 281     $cm     = get_coursemodule_from_id('', $id, 0, true, MUST_EXIST);
 282     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 283
 284     require_login($course, false, $cm);
 285     $coursecontext = context_course::instance($course->id);
 286     $modcontext = context_module::instance($cm->id);
 287     require_capability('moodle/course:manageactivities', $modcontext);
 288
 289     set_coursemodule_groupmode($cm->id, $groupmode);
 290     \core\event\course_module_updated::create_from_cm($cm, $modcontext)->trigger();
 291     redirect(course_get_url($course, $cm->sectionnum, $urloptions));
 292
 293 } else if (!empty($copy) and confirm_sesskey()) { // value = course module
 294     $cm     = get_coursemodule_from_id('', $copy, 0, true, MUST_EXIST);
 295     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 296
 297     require_login($course, false, $cm);
 298     $coursecontext = context_course::instance($course->id);
 299     $modcontext = context_module::instance($cm->id);
 300     require_capability('moodle/course:manageactivities', $modcontext);
 301
 302     $section = $DB->get_record('course_sections', array('id'=>$cm->section), '*', MUST_EXIST);
 303
 304     $USER->activitycopy              = $copy;
 305     $USER->activitycopycourse        = $cm->course;
 306     $USER->activitycopyname          = $cm->name;
 307     $USER->activitycopysectionreturn = $sectionreturn;
 308
 309     redirect(course_get_url($course, $section->section, $urloptions));
 310
 311 } else if (!empty($cancelcopy) and confirm_sesskey()) { // value = course module
 312
 313     $courseid = $USER->activitycopycourse;
 314     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
 315
 316     $cm     = get_coursemodule_from_id('', $USER->activitycopy, 0, true, IGNORE_MISSING);
 317     $sectionreturn = $USER->activitycopysectionreturn;
 318     unset($USER->activitycopy);
 319     unset($USER->activitycopycourse);
 320     unset($USER->activitycopyname);
 321     unset($USER->activitycopysectionreturn);
 322     redirect(course_get_url($course, $cm->sectionnum, $urloptions));
 323 } else {
 324     throw new \moodle_exception('unknowaction');
 325 }