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_ALPHA);
  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 $show          = optional_param('show', 0, PARAM_INT);
  37 $copy          = optional_param('copy', 0, PARAM_INT);
  38 $moveto        = optional_param('moveto', 0, PARAM_INT);
  39 $movetosection = optional_param('movetosection', 0, PARAM_INT);
  40 $delete        = optional_param('delete', 0, PARAM_INT);
  41 $course        = optional_param('course', 0, PARAM_INT);
  42 $groupmode     = optional_param('groupmode', -1, PARAM_INT);
  43 $cancelcopy    = optional_param('cancelcopy', 0, PARAM_BOOL);
  44 $confirm       = optional_param('confirm', 0, PARAM_BOOL);
  45
  46 // This page should always redirect
  47 $url = new moodle_url('/course/mod.php');
  48 foreach (compact('indent','update','hide','show','copy','moveto','movetosection','delete','course','cancelcopy','confirm') as $key=>$value) {
  49     if ($value !== 0) {
  50         $url->param($key, $value);
  51     }
  52 }
  53 $url->param('sr', $sectionreturn);
  54 if ($add !== '') {
  55     $url->param('add', $add);
  56 }
  57 if ($type !== '') {
  58     $url->param('type', $type);
  59 }
  60 if ($groupmode !== '') {
  61     $url->param('groupmode', $groupmode);
  62 }
  63 $PAGE->set_url($url);
  64
  65 require_login();
  66
  67 //check if we are adding / editing a module that has new forms using formslib
  68 if (!empty($add)) {
  69     $id          = required_param('id', PARAM_INT);
  70     $section     = required_param('section', PARAM_INT);
  71     $type        = optional_param('type', '', PARAM_ALPHA);
  72     $returntomod = optional_param('return', 0, PARAM_BOOL);
  73
  74     redirect("$CFG->wwwroot/course/modedit.php?add=$add&type=$type&course=$id&section=$section&return=$returntomod&sr=$sectionreturn");
  75
  76 } else if (!empty($update)) {
  77     $cm = get_coursemodule_from_id('', $update, 0, true, MUST_EXIST);
  78     $returntomod = optional_param('return', 0, PARAM_BOOL);
  79     redirect("$CFG->wwwroot/course/modedit.php?update=$update&return=$returntomod&sr=$sectionreturn");
  80
  81 } else if (!empty($duplicate)) {
  82     $cm     = get_coursemodule_from_id('', $duplicate, 0, true, MUST_EXIST);
  83     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  84
  85     require_login($course, false, $cm);
  86     $coursecontext = context_course::instance($course->id);
  87     $modcontext = context_module::instance($cm->id);
  88     require_capability('moodle/course:manageactivities', $coursecontext);
  89
  90     if (!$confirm or !confirm_sesskey()) {
  91         $PAGE->set_title(get_string('duplicate'));
  92         $PAGE->set_heading($course->fullname);
  93         $PAGE->navbar->add(get_string('duplicatinga', 'core', format_string($cm->name)));
  94         $PAGE->set_pagelayout('incourse');
  95
  96         $a = new stdClass();
  97         $a->modtype = get_string('modulename', $cm->modname);
  98         $a->modname = format_string($cm->name);
  99         $a->modid   = $cm->id;
 100
 101         echo $OUTPUT->header();
 102         echo $OUTPUT->confirm(
 103             get_string('duplicateconfirm', 'core', $a),
 104             new single_button(
 105                 new moodle_url('/course/modduplicate.php', array(
 106                     'cmid' => $cm->id, 'course' => $course->id, 'sr' => $sectionreturn)),
 107                 get_string('continue'),
 108                 'post'),
 109             new single_button(
 110                 course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn)),
 111                 get_string('cancel'),
 112                 'get')
 113         );
 114         echo $OUTPUT->footer();
 115         die();
 116     }
 117
 118 } else if (!empty($delete)) {
 119     $cm     = get_coursemodule_from_id('', $delete, 0, true, MUST_EXIST);
 120     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 121
 122     require_login($course, false, $cm);
 123     $coursecontext = context_course::instance($course->id);
 124     $modcontext = context_module::instance($cm->id);
 125     require_capability('moodle/course:manageactivities', $modcontext);
 126
 127     $return = course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn));
 128
 129     if (!$confirm or !confirm_sesskey()) {
 130         $fullmodulename = get_string('modulename', $cm->modname);
 131
 132         $optionsyes = array('confirm'=>1, 'delete'=>$cm->id, 'sesskey'=>sesskey(), 'sr' => $sectionreturn);
 133
 134         $strdeletecheck = get_string('deletecheck', '', $fullmodulename);
 135         $strdeletecheckfull = get_string('deletecheckfull', '', "$fullmodulename '$cm->name'");
 136
 137         $PAGE->set_pagetype('mod-' . $cm->modname . '-delete');
 138         $PAGE->set_title($strdeletecheck);
 139         $PAGE->set_heading($course->fullname);
 140         $PAGE->navbar->add($strdeletecheck);
 141         echo $OUTPUT->header();
 142
 143         // print_simple_box_start('center', '60%', '#FFAAAA', 20, 'noticebox');
 144         echo $OUTPUT->box_start('noticebox');
 145         $formcontinue = new single_button(new moodle_url("$CFG->wwwroot/course/mod.php", $optionsyes), get_string('yes'));
 146         $formcancel = new single_button($return, get_string('no'), 'get');
 147         echo $OUTPUT->confirm($strdeletecheckfull, $formcontinue, $formcancel);
 148         echo $OUTPUT->box_end();
 149         echo $OUTPUT->footer();
 150
 151         exit;
 152     }
 153
 154     $modlib = "$CFG->dirroot/mod/$cm->modname/lib.php";
 155
 156     if (file_exists($modlib)) {
 157         require_once($modlib);
 158     } else {
 159         print_error('modulemissingcode', '', '', $modlib);
 160     }
 161
 162     $deleteinstancefunction = $cm->modname."_delete_instance";
 163
 164     if (!$deleteinstancefunction($cm->instance)) {
 165         echo $OUTPUT->notification("Could not delete the $cm->modname (instance)");
 166     }
 167
 168     // remove all module files in case modules forget to do that
 169     $fs = get_file_storage();
 170     $fs->delete_area_files($modcontext->id);
 171
 172     if (!delete_course_module($cm->id)) {
 173         echo $OUTPUT->notification("Could not delete the $cm->modname (coursemodule)");
 174     }
 175     if (!delete_mod_from_section($cm->id, $cm->section)) {
 176         echo $OUTPUT->notification("Could not delete the $cm->modname from that section");
 177     }
 178
 179     // Trigger a mod_deleted event with information about this module.
 180     $eventdata = new stdClass();
 181     $eventdata->modulename = $cm->modname;
 182     $eventdata->cmid       = $cm->id;
 183     $eventdata->courseid   = $course->id;
 184     $eventdata->userid     = $USER->id;
 185     events_trigger('mod_deleted', $eventdata);
 186
 187     add_to_log($course->id, 'course', "delete mod",
 188                "view.php?id=$cm->course",
 189                "$cm->modname $cm->instance", $cm->id);
 190
 191     redirect($return);
 192 }
 193
 194
 195 if ((!empty($movetosection) or !empty($moveto)) and confirm_sesskey()) {
 196     $cm     = get_coursemodule_from_id('', $USER->activitycopy, 0, true, MUST_EXIST);
 197     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 198
 199     require_login($course, false, $cm);
 200     $coursecontext = context_course::instance($course->id);
 201     $modcontext = context_module::instance($cm->id);
 202     require_capability('moodle/course:manageactivities', $modcontext);
 203
 204     if (!empty($movetosection)) {
 205         if (!$section = $DB->get_record('course_sections', array('id'=>$movetosection, 'course'=>$cm->course))) {
 206             print_error('sectionnotexist');
 207         }
 208         $beforecm = NULL;
 209
 210     } else {                      // normal moveto
 211         if (!$beforecm = get_coursemodule_from_id('', $moveto, $cm->course, true)) {
 212             print_error('invalidcoursemodule');
 213         }
 214         if (!$section = $DB->get_record('course_sections', array('id'=>$beforecm->section, 'course'=>$cm->course))) {
 215             print_error('sectionnotexist');
 216         }
 217     }
 218
 219     if (!ismoving($section->course)) {
 220         print_error('needcopy', '', "view.php?id=$section->course");
 221     }
 222
 223     moveto_module($cm, $section, $beforecm);
 224
 225     $sectionreturn = $USER->activitycopysectionreturn;
 226     unset($USER->activitycopy);
 227     unset($USER->activitycopycourse);
 228     unset($USER->activitycopyname);
 229     unset($USER->activitycopysectionreturn);
 230
 231     redirect(course_get_url($course, $section->section, array('sr' => $sectionreturn)));
 232
 233 } else if (!empty($indent) and confirm_sesskey()) {
 234     $id = required_param('id', PARAM_INT);
 235
 236     $cm     = get_coursemodule_from_id('', $id, 0, true, MUST_EXIST);
 237     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 238
 239     require_login($course, false, $cm);
 240     $coursecontext = context_course::instance($course->id);
 241     $modcontext = context_module::instance($cm->id);
 242     require_capability('moodle/course:manageactivities', $modcontext);
 243
 244     $cm->indent += $indent;
 245
 246     if ($cm->indent < 0) {
 247         $cm->indent = 0;
 248     }
 249
 250     $DB->set_field('course_modules', 'indent', $cm->indent, array('id'=>$cm->id));
 251
 252     rebuild_course_cache($cm->course);
 253
 254     redirect(course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn)));
 255
 256 } else if (!empty($hide) and confirm_sesskey()) {
 257     $cm     = get_coursemodule_from_id('', $hide, 0, true, MUST_EXIST);
 258     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 259
 260     require_login($course, false, $cm);
 261     $coursecontext = context_course::instance($course->id);
 262     $modcontext = context_module::instance($cm->id);
 263     require_capability('moodle/course:activityvisibility', $modcontext);
 264
 265     set_coursemodule_visible($cm->id, 0);
 266
 267     redirect(course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn)));
 268
 269 } else if (!empty($show) and confirm_sesskey()) {
 270     $cm     = get_coursemodule_from_id('', $show, 0, true, MUST_EXIST);
 271     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 272
 273     require_login($course, false, $cm);
 274     $coursecontext = context_course::instance($course->id);
 275     $modcontext = context_module::instance($cm->id);
 276     require_capability('moodle/course:activityvisibility', $modcontext);
 277
 278     $section = $DB->get_record('course_sections', array('id'=>$cm->section), '*', MUST_EXIST);
 279
 280     $module = $DB->get_record('modules', array('id'=>$cm->module), '*', MUST_EXIST);
 281
 282     if ($module->visible and ($section->visible or (SITEID == $cm->course))) {
 283         set_coursemodule_visible($cm->id, 1);
 284     }
 285
 286     redirect(course_get_url($course, $section->section, array('sr' => $sectionreturn)));
 287
 288 } else if ($groupmode > -1 and confirm_sesskey()) {
 289     $id = required_param('id', PARAM_INT);
 290
 291     $cm     = get_coursemodule_from_id('', $id, 0, true, MUST_EXIST);
 292     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 293
 294     require_login($course, false, $cm);
 295     $coursecontext = context_course::instance($course->id);
 296     $modcontext = context_module::instance($cm->id);
 297     require_capability('moodle/course:manageactivities', $modcontext);
 298
 299     set_coursemodule_groupmode($cm->id, $groupmode);
 300
 301     redirect(course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn)));
 302
 303 } else if (!empty($copy) and confirm_sesskey()) { // value = course module
 304     $cm     = get_coursemodule_from_id('', $copy, 0, true, MUST_EXIST);
 305     $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 306
 307     require_login($course, false, $cm);
 308     $coursecontext = context_course::instance($course->id);
 309     $modcontext = context_module::instance($cm->id);
 310     require_capability('moodle/course:manageactivities', $modcontext);
 311
 312     $section = $DB->get_record('course_sections', array('id'=>$cm->section), '*', MUST_EXIST);
 313
 314     $USER->activitycopy              = $copy;
 315     $USER->activitycopycourse        = $cm->course;
 316     $USER->activitycopyname          = $cm->name;
 317     $USER->activitycopysectionreturn = $sectionreturn;
 318
 319     redirect(course_get_url($course, $section->section, array('sr' => $sectionreturn)));
 320
 321 } else if (!empty($cancelcopy) and confirm_sesskey()) { // value = course module
 322
 323     $courseid = $USER->activitycopycourse;
 324     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
 325
 326     $cm     = get_coursemodule_from_id('', $USER->activitycopy, 0, true, IGNORE_MISSING);
 327     $sectionreturn = $USER->activitycopysectionreturn;
 328     unset($USER->activitycopy);
 329     unset($USER->activitycopycourse);
 330     unset($USER->activitycopyname);
 331     unset($USER->activitycopysectionreturn);
 332     redirect(course_get_url($course, $cm->sectionnum, array('sr' => $sectionreturn)));
 333 } else {
 334     print_error('unknowaction');
 335 }
 336
 337