course/modlib.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  * Library of functions specific to course/modedit.php and course API functions.
  19  * The course API function calling them are course/lib.php:create_module() and update_module().
  20  * This file has been created has an alternative solution to a full refactor of course/modedit.php
  21  * in order to create the course API functions.
  22  *
  23  * @copyright 2013 Jerome Mouneyrac
  24  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  * @package core_course
  26  */
  27
  28 defined('MOODLE_INTERNAL') || die;
  29
  30 require_once($CFG->dirroot.'/course/lib.php');
  31
  32 /**
  33  * Add course module.
  34  *
  35  * The function does not check user capabilities.
  36  * The function creates course module, module instance, add the module to the correct section.
  37  * It also trigger common action that need to be done after adding/updating a module.
  38  *
  39  * @param object $moduleinfo the moudle data
  40  * @param object $course the course of the module
  41  * @param object $mform this is required by an existing hack to deal with files during MODULENAME_add_instance()
  42  * @return object the updated module info
  43  */
  44 function add_moduleinfo($moduleinfo, $course, $mform = null) {
  45     global $DB, $CFG;
  46
  47     // Attempt to include module library before we make any changes to DB.
  48     include_modulelib($moduleinfo->modulename);
  49
  50     $moduleinfo->course = $course->id;
  51     $moduleinfo = set_moduleinfo_defaults($moduleinfo);
  52
  53     if (!empty($course->groupmodeforce) or !isset($moduleinfo->groupmode)) {
  54         $moduleinfo->groupmode = 0; // Do not set groupmode.
  55     }
  56
  57     // First add course_module record because we need the context.
  58     $newcm = new stdClass();
  59     $newcm->course           = $course->id;
  60     $newcm->module           = $moduleinfo->module;
  61     $newcm->instance         = 0; // Not known yet, will be updated later (this is similar to restore code).
  62     $newcm->visible          = $moduleinfo->visible;
  63     $newcm->visibleold       = $moduleinfo->visible;
  64     if (isset($moduleinfo->cmidnumber)) {
  65         $newcm->idnumber         = $moduleinfo->cmidnumber;
  66     }
  67     $newcm->groupmode        = $moduleinfo->groupmode;
  68     $newcm->groupingid       = $moduleinfo->groupingid;
  69     $newcm->groupmembersonly = $moduleinfo->groupmembersonly;
  70     $completion = new completion_info($course);
  71     if ($completion->is_enabled()) {
  72         $newcm->completion                = $moduleinfo->completion;
  73         $newcm->completiongradeitemnumber = $moduleinfo->completiongradeitemnumber;
  74         $newcm->completionview            = $moduleinfo->completionview;
  75         $newcm->completionexpected        = $moduleinfo->completionexpected;
  76     }
  77     if(!empty($CFG->enableavailability)) {
  78         // This code is used both when submitting the form, which uses a long
  79         // name to avoid clashes, and by unit test code which uses the real
  80         // name in the table.
  81         $newcm->availability = null;
  82         if (property_exists($moduleinfo, 'availabilityconditionsjson')) {
  83             if ($moduleinfo->availabilityconditionsjson !== '') {
  84                 $newcm->availability = $moduleinfo->availabilityconditionsjson;
  85             }
  86         } else if (property_exists($moduleinfo, 'availability')) {
  87             $newcm->availability = $moduleinfo->availability;
  88         }
  89     }
  90     if (isset($moduleinfo->showdescription)) {
  91         $newcm->showdescription = $moduleinfo->showdescription;
  92     } else {
  93         $newcm->showdescription = 0;
  94     }
  95
  96     // From this point we make database changes, so start transaction.
  97     $transaction = $DB->start_delegated_transaction();
  98
  99     if (!$moduleinfo->coursemodule = add_course_module($newcm)) {
 100         print_error('cannotaddcoursemodule');
 101     }
 102
 103     if (plugin_supports('mod', $moduleinfo->modulename, FEATURE_MOD_INTRO, true) &&
 104             isset($moduleinfo->introeditor)) {
 105         $introeditor = $moduleinfo->introeditor;
 106         unset($moduleinfo->introeditor);
 107         $moduleinfo->intro       = $introeditor['text'];
 108         $moduleinfo->introformat = $introeditor['format'];
 109     }
 110
 111     $addinstancefunction    = $moduleinfo->modulename."_add_instance";
 112     try {
 113         $returnfromfunc = $addinstancefunction($moduleinfo, $mform);
 114     } catch (moodle_exception $e) {
 115         $returnfromfunc = $e;
 116     }
 117     if (!$returnfromfunc or !is_number($returnfromfunc)) {
 118         // Undo everything we can. This is not necessary for databases which
 119         // support transactions, but improves consistency for other databases.
 120         $modcontext = context_module::instance($moduleinfo->coursemodule);
 121         context_helper::delete_instance(CONTEXT_MODULE, $moduleinfo->coursemodule);
 122         $DB->delete_records('course_modules', array('id'=>$moduleinfo->coursemodule));
 123
 124         if ($e instanceof moodle_exception) {
 125             throw $e;
 126         } else if (!is_number($returnfromfunc)) {
 127             print_error('invalidfunction', '', course_get_url($course, $moduleinfo->section));
 128         } else {
 129             print_error('cannotaddnewmodule', '', course_get_url($course, $moduleinfo->section), $moduleinfo->modulename);
 130         }
 131     }
 132
 133     $moduleinfo->instance = $returnfromfunc;
 134
 135     $DB->set_field('course_modules', 'instance', $returnfromfunc, array('id'=>$moduleinfo->coursemodule));
 136
 137     // Update embedded links and save files.
 138     $modcontext = context_module::instance($moduleinfo->coursemodule);
 139     if (!empty($introeditor)) {
 140         $moduleinfo->intro = file_save_draft_area_files($introeditor['itemid'], $modcontext->id,
 141                                                       'mod_'.$moduleinfo->modulename, 'intro', 0,
 142                                                       array('subdirs'=>true), $introeditor['text']);
 143         $DB->set_field($moduleinfo->modulename, 'intro', $moduleinfo->intro, array('id'=>$moduleinfo->instance));
 144     }
 145
 146     // Course_modules and course_sections each contain a reference to each other.
 147     // So we have to update one of them twice.
 148     $sectionid = course_add_cm_to_section($course, $moduleinfo->coursemodule, $moduleinfo->section);
 149
 150     // Trigger event based on the action we did.
 151     // Api create_from_cm expects modname and id property, and we don't want to modify $moduleinfo since we are returning it.
 152     $eventdata = clone $moduleinfo;
 153     $eventdata->modname = $eventdata->modulename;
 154     $eventdata->id = $eventdata->coursemodule;
 155     $event = \core\event\course_module_created::create_from_cm($eventdata, $modcontext);
 156     $event->trigger();
 157
 158     $moduleinfo = edit_module_post_actions($moduleinfo, $course);
 159     $transaction->allow_commit();
 160
 161     return $moduleinfo;
 162 }
 163
 164
 165 /**
 166  * Common create/update module module actions that need to be processed as soon as a module is created/updaded.
 167  * For example:create grade parent category, add outcomes, rebuild caches, regrade, save plagiarism settings...
 168  * Please note this api does not trigger events as of MOODLE 2.6. Please trigger events before calling this api.
 169  *
 170  * @param object $moduleinfo the module info
 171  * @param object $course the course of the module
 172  *
 173  * @return object moduleinfo update with grading management info
 174  */
 175 function edit_module_post_actions($moduleinfo, $course) {
 176     global $CFG;
 177     require_once($CFG->libdir.'/gradelib.php');
 178
 179     $modcontext = context_module::instance($moduleinfo->coursemodule);
 180     $hasgrades = plugin_supports('mod', $moduleinfo->modulename, FEATURE_GRADE_HAS_GRADE, false);
 181     $hasoutcomes = plugin_supports('mod', $moduleinfo->modulename, FEATURE_GRADE_OUTCOMES, true);
 182
 183     // Sync idnumber with grade_item.
 184     if ($hasgrades && $grade_item = grade_item::fetch(array('itemtype'=>'mod', 'itemmodule'=>$moduleinfo->modulename,
 185                  'iteminstance'=>$moduleinfo->instance, 'itemnumber'=>0, 'courseid'=>$course->id))) {
 186         if ($grade_item->idnumber != $moduleinfo->cmidnumber) {
 187             $grade_item->idnumber = $moduleinfo->cmidnumber;
 188             $grade_item->update();
 189         }
 190     }
 191
 192     if ($hasgrades) {
 193         $items = grade_item::fetch_all(array('itemtype'=>'mod', 'itemmodule'=>$moduleinfo->modulename,
 194                                          'iteminstance'=>$moduleinfo->instance, 'courseid'=>$course->id));
 195     } else {
 196         $items = array();
 197     }
 198
 199     // Create parent category if requested and move to correct parent category.
 200     if ($items and isset($moduleinfo->gradecat)) {
 201         if ($moduleinfo->gradecat == -1) {
 202             $grade_category = new grade_category();
 203             $grade_category->courseid = $course->id;
 204             $grade_category->fullname = $moduleinfo->name;
 205             $grade_category->insert();
 206             if ($grade_item) {
 207                 $parent = $grade_item->get_parent_category();
 208                 $grade_category->set_parent($parent->id);
 209             }
 210             $moduleinfo->gradecat = $grade_category->id;
 211         }
 212         $gradecategory = $grade_item->get_parent_category();
 213         foreach ($items as $itemid=>$unused) {
 214             $items[$itemid]->set_parent($moduleinfo->gradecat);
 215             if ($itemid == $grade_item->id) {
 216                 // Use updated grade_item.
 217                 $grade_item = $items[$itemid];
 218             }
 219             if (!empty($moduleinfo->add)) {
 220                 if (grade_category::aggregation_uses_aggregationcoef($gradecategory->aggregation)) {
 221                     if ($gradecategory->aggregation == GRADE_AGGREGATE_WEIGHTED_MEAN) {
 222                         $grade_item->aggregationcoef = 1;
 223                     } else {
 224                         $grade_item->aggregationcoef = 0;
 225                     }
 226                     $grade_item->update();
 227                 }
 228             }
 229         }
 230     }
 231
 232     require_once($CFG->libdir.'/grade/grade_outcome.php');
 233     // Add outcomes if requested.
 234     if ($hasoutcomes && $outcomes = grade_outcome::fetch_all_available($course->id)) {
 235         $grade_items = array();
 236
 237         // Outcome grade_item.itemnumber start at 1000, there is nothing above outcomes.
 238         $max_itemnumber = 999;
 239         if ($items) {
 240             foreach($items as $item) {
 241                 if ($item->itemnumber > $max_itemnumber) {
 242                     $max_itemnumber = $item->itemnumber;
 243                 }
 244             }
 245         }
 246
 247         foreach($outcomes as $outcome) {
 248             $elname = 'outcome_'.$outcome->id;
 249
 250             if (property_exists($moduleinfo, $elname) and $moduleinfo->$elname) {
 251                 // So we have a request for new outcome grade item?
 252                 if ($items) {
 253                     $outcomeexists = false;
 254                     foreach($items as $item) {
 255                         if ($item->outcomeid == $outcome->id) {
 256                             $outcomeexists = true;
 257                             break;
 258                         }
 259                     }
 260                     if ($outcomeexists) {
 261                         continue;
 262                     }
 263                 }
 264
 265                 $max_itemnumber++;
 266
 267                 $outcome_item = new grade_item();
 268                 $outcome_item->courseid     = $course->id;
 269                 $outcome_item->itemtype     = 'mod';
 270                 $outcome_item->itemmodule   = $moduleinfo->modulename;
 271                 $outcome_item->iteminstance = $moduleinfo->instance;
 272                 $outcome_item->itemnumber   = $max_itemnumber;
 273                 $outcome_item->itemname     = $outcome->fullname;
 274                 $outcome_item->outcomeid    = $outcome->id;
 275                 $outcome_item->gradetype    = GRADE_TYPE_SCALE;
 276                 $outcome_item->scaleid      = $outcome->scaleid;
 277                 $outcome_item->insert();
 278
 279                 // Move the new outcome into correct category and fix sortorder if needed.
 280                 if ($grade_item) {
 281                     $outcome_item->set_parent($grade_item->categoryid);
 282                     $outcome_item->move_after_sortorder($grade_item->sortorder);
 283
 284                 } else if (isset($moduleinfo->gradecat)) {
 285                     $outcome_item->set_parent($moduleinfo->gradecat);
 286                 }
 287                 $gradecategory = $outcome_item->get_parent_category();
 288                 if ($outcomeexists == false) {
 289                     if (grade_category::aggregation_uses_aggregationcoef($gradecategory->aggregation)) {
 290                         if ($gradecategory->aggregation == GRADE_AGGREGATE_WEIGHTED_MEAN) {
 291                             $outcome_item->aggregationcoef = 1;
 292                         } else {
 293                             $outcome_item->aggregationcoef = 0;
 294                         }
 295                         $outcome_item->update();
 296                     }
 297                 }
 298             }
 299         }
 300     }
 301
 302     if (plugin_supports('mod', $moduleinfo->modulename, FEATURE_ADVANCED_GRADING, false)
 303             and has_capability('moodle/grade:managegradingforms', $modcontext)) {
 304         require_once($CFG->dirroot.'/grade/grading/lib.php');
 305         $gradingman = get_grading_manager($modcontext, 'mod_'.$moduleinfo->modulename);
 306         $showgradingmanagement = false;
 307         foreach ($gradingman->get_available_areas() as $areaname => $aretitle) {
 308             $formfield = 'advancedgradingmethod_'.$areaname;
 309             if (isset($moduleinfo->{$formfield})) {
 310                 $gradingman->set_area($areaname);
 311                 $methodchanged = $gradingman->set_active_method($moduleinfo->{$formfield});
 312                 if (empty($moduleinfo->{$formfield})) {
 313                     // Going back to the simple direct grading is not a reason to open the management screen.
 314                     $methodchanged = false;
 315                 }
 316                 $showgradingmanagement = $showgradingmanagement || $methodchanged;
 317             }
 318         }
 319         // Update grading management information.
 320         $moduleinfo->gradingman = $gradingman;
 321         $moduleinfo->showgradingmanagement = $showgradingmanagement;
 322     }
 323
 324     rebuild_course_cache($course->id, true);
 325     if ($hasgrades) {
 326         grade_regrade_final_grades($course->id);
 327     }
 328     require_once($CFG->libdir.'/plagiarismlib.php');
 329     plagiarism_save_form_elements($moduleinfo);
 330
 331     return $moduleinfo;
 332 }
 333
 334
 335 /**
 336  * Set module info default values for the unset module attributs.
 337  *
 338  * @param object $moduleinfo the current known data of the module
 339  * @return object the completed module info
 340  */
 341 function set_moduleinfo_defaults($moduleinfo) {
 342
 343     if (empty($moduleinfo->coursemodule)) {
 344         // Add.
 345         $cm = null;
 346         $moduleinfo->instance     = '';
 347         $moduleinfo->coursemodule = '';
 348     } else {
 349         // Update.
 350         $cm = get_coursemodule_from_id('', $moduleinfo->coursemodule, 0, false, MUST_EXIST);
 351         $moduleinfo->instance     = $cm->instance;
 352         $moduleinfo->coursemodule = $cm->id;
 353     }
 354     // For safety.
 355     $moduleinfo->modulename = clean_param($moduleinfo->modulename, PARAM_PLUGIN);
 356
 357     if (!isset($moduleinfo->groupingid)) {
 358         $moduleinfo->groupingid = 0;
 359     }
 360
 361     if (!isset($moduleinfo->groupmembersonly)) {
 362         $moduleinfo->groupmembersonly = 0;
 363     }
 364
 365     if (!isset($moduleinfo->name)) { // Label.
 366         $moduleinfo->name = $moduleinfo->modulename;
 367     }
 368
 369     if (!isset($moduleinfo->completion)) {
 370         $moduleinfo->completion = COMPLETION_DISABLED;
 371     }
 372     if (!isset($moduleinfo->completionview)) {
 373         $moduleinfo->completionview = COMPLETION_VIEW_NOT_REQUIRED;
 374     }
 375     if (!isset($moduleinfo->completionexpected)) {
 376         $moduleinfo->completionexpected = 0;
 377     }
 378
 379     // Convert the 'use grade' checkbox into a grade-item number: 0 if checked, null if not.
 380     if (isset($moduleinfo->completionusegrade) && $moduleinfo->completionusegrade) {
 381         $moduleinfo->completiongradeitemnumber = 0;
 382     } else {
 383         $moduleinfo->completiongradeitemnumber = null;
 384     }
 385
 386     if (!isset($moduleinfo->conditiongradegroup)) {
 387         $moduleinfo->conditiongradegroup = array();
 388     }
 389     if (!isset($moduleinfo->conditionfieldgroup)) {
 390         $moduleinfo->conditionfieldgroup = array();
 391     }
 392
 393     return $moduleinfo;
 394 }
 395
 396 /**
 397  * Check that the user can add a module. Also returns some information like the module, context and course section info.
 398  * The fucntion create the course section if it doesn't exist.
 399  *
 400  * @param object $course the course of the module
 401  * @param object $modulename the module name
 402  * @param object $section the section of the module
 403  * @return array list containing module, context, course section.
 404  * @throws moodle_exception if user is not allowed to perform the action or module is not allowed in this course
 405  */
 406 function can_add_moduleinfo($course, $modulename, $section) {
 407     global $DB;
 408
 409     $module = $DB->get_record('modules', array('name'=>$modulename), '*', MUST_EXIST);
 410
 411     $context = context_course::instance($course->id);
 412     require_capability('moodle/course:manageactivities', $context);
 413
 414     course_create_sections_if_missing($course, $section);
 415     $cw = get_fast_modinfo($course)->get_section_info($section);
 416
 417     if (!course_allowed_module($course, $module->name)) {
 418         print_error('moduledisable');
 419     }
 420
 421     return array($module, $context, $cw);
 422 }
 423
 424 /**
 425  * Check if user is allowed to update module info and returns related item/data to the module.
 426  *
 427  * @param object $cm course module
 428  * @return array - list of course module, context, module, moduleinfo, and course section.
 429  * @throws moodle_exception if user is not allowed to perform the action
 430  */
 431 function can_update_moduleinfo($cm) {
 432     global $DB;
 433
 434     // Check the $USER has the right capability.
 435     $context = context_module::instance($cm->id);
 436     require_capability('moodle/course:manageactivities', $context);
 437
 438     // Check module exists.
 439     $module = $DB->get_record('modules', array('id'=>$cm->module), '*', MUST_EXIST);
 440
 441     // Check the moduleinfo exists.
 442     $data = $DB->get_record($module->name, array('id'=>$cm->instance), '*', MUST_EXIST);
 443
 444     // Check the course section exists.
 445     $cw = $DB->get_record('course_sections', array('id'=>$cm->section), '*', MUST_EXIST);
 446
 447     return array($cm, $context, $module, $data, $cw);
 448 }
 449
 450
 451 /**
 452  * Update the module info.
 453  * This function doesn't check the user capabilities. It updates the course module and the module instance.
 454  * Then execute common action to create/update module process (trigger event, rebuild cache, save plagiarism settings...).
 455  *
 456  * @param object $cm course module
 457  * @param object $moduleinfo module info
 458  * @param object $course course of the module
 459  * @param object $mform - the mform is required by some specific module in the function MODULE_update_instance(). This is due to a hack in this function.
 460  * @return array list of course module and module info.
 461  */
 462 function update_moduleinfo($cm, $moduleinfo, $course, $mform = null) {
 463     global $DB, $CFG;
 464
 465     // Attempt to include module library before we make any changes to DB.
 466     include_modulelib($moduleinfo->modulename);
 467
 468     $moduleinfo->course = $course->id;
 469     $moduleinfo = set_moduleinfo_defaults($moduleinfo);
 470
 471     if (!empty($course->groupmodeforce) or !isset($moduleinfo->groupmode)) {
 472         $moduleinfo->groupmode = $cm->groupmode; // Keep original.
 473     }
 474
 475     // Update course module first.
 476     $cm->groupmode = $moduleinfo->groupmode;
 477     if (isset($moduleinfo->groupingid)) {
 478         $cm->groupingid = $moduleinfo->groupingid;
 479     }
 480     if (isset($moduleinfo->groupmembersonly)) {
 481         $cm->groupmembersonly = $moduleinfo->groupmembersonly;
 482     }
 483
 484     $completion = new completion_info($course);
 485     if ($completion->is_enabled() && !empty($moduleinfo->completionunlocked)) {
 486         // Update completion settings.
 487         $cm->completion                = $moduleinfo->completion;
 488         $cm->completiongradeitemnumber = $moduleinfo->completiongradeitemnumber;
 489         $cm->completionview            = $moduleinfo->completionview;
 490         $cm->completionexpected        = $moduleinfo->completionexpected;
 491     }
 492     if (!empty($CFG->enableavailability)) {
 493         // This code is used both when submitting the form, which uses a long
 494         // name to avoid clashes, and by unit test code which uses the real
 495         // name in the table.
 496         if (property_exists($moduleinfo, 'availabilityconditionsjson')) {
 497             if ($moduleinfo->availabilityconditionsjson !== '') {
 498                 $cm->availability = $moduleinfo->availabilityconditionsjson;
 499             } else {
 500                 $cm->availability = null;
 501             }
 502         } else if (property_exists($moduleinfo, 'availability')) {
 503             $cm->availability = $moduleinfo->availability;
 504         }
 505     }
 506     if (isset($moduleinfo->showdescription)) {
 507         $cm->showdescription = $moduleinfo->showdescription;
 508     } else {
 509         $cm->showdescription = 0;
 510     }
 511
 512     $DB->update_record('course_modules', $cm);
 513
 514     $modcontext = context_module::instance($moduleinfo->coursemodule);
 515
 516     // Update embedded links and save files.
 517     if (plugin_supports('mod', $moduleinfo->modulename, FEATURE_MOD_INTRO, true)) {
 518         $moduleinfo->intro = file_save_draft_area_files($moduleinfo->introeditor['itemid'], $modcontext->id,
 519                                                       'mod_'.$moduleinfo->modulename, 'intro', 0,
 520                                                       array('subdirs'=>true), $moduleinfo->introeditor['text']);
 521         $moduleinfo->introformat = $moduleinfo->introeditor['format'];
 522         unset($moduleinfo->introeditor);
 523     }
 524     $updateinstancefunction = $moduleinfo->modulename."_update_instance";
 525     if (!$updateinstancefunction($moduleinfo, $mform)) {
 526         print_error('cannotupdatemod', '', course_get_url($course, $cw->section), $moduleinfo->modulename);
 527     }
 528
 529     // Make sure visibility is set correctly (in particular in calendar).
 530     if (has_capability('moodle/course:activityvisibility', $modcontext)) {
 531         set_coursemodule_visible($moduleinfo->coursemodule, $moduleinfo->visible);
 532     }
 533
 534     if (isset($moduleinfo->cmidnumber)) { // Label.
 535         // Set cm idnumber - uniqueness is already verified by form validation.
 536         set_coursemodule_idnumber($moduleinfo->coursemodule, $moduleinfo->cmidnumber);
 537     }
 538
 539     // Now that module is fully updated, also update completion data if required.
 540     // (this will wipe all user completion data and recalculate it)
 541     if ($completion->is_enabled() && !empty($moduleinfo->completionunlocked)) {
 542         $completion->reset_all_state($cm);
 543     }
 544     $cm->name = $moduleinfo->name;
 545     \core\event\course_module_updated::create_from_cm($cm, $modcontext)->trigger();
 546
 547     $moduleinfo = edit_module_post_actions($moduleinfo, $course);
 548
 549     return array($cm, $moduleinfo);
 550 }
 551
 552 /**
 553  * Include once the module lib file.
 554  *
 555  * @param string $modulename module name of the lib to include
 556  * @throws moodle_exception if lib.php file for the module does not exist
 557  */
 558 function include_modulelib($modulename) {
 559     global $CFG;
 560     $modlib = "$CFG->dirroot/mod/$modulename/lib.php";
 561     if (file_exists($modlib)) {
 562         include_once($modlib);
 563     } else {
 564         throw new moodle_exception('modulemissingcode', '', '', $modlib);
 565     }
 566 }
 567