course/management.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 and category management interfaces.
  19  *
  20  * @package    core_course
  21  * @copyright  2013 Sam Hemelryk
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once('../config.php');
  26 require_once($CFG->dirroot.'/lib/coursecatlib.php');
  27 require_once($CFG->dirroot.'/course/lib.php');
  28
  29 $categoryid = optional_param('categoryid', null, PARAM_INT);
  30 $selectedcategoryid = optional_param('selectedcategoryid', null, PARAM_INT);
  31 $courseid = optional_param('courseid', null, PARAM_INT);
  32 $action = optional_param('action', false, PARAM_ALPHA);
  33 $page = optional_param('page', 0, PARAM_INT);
  34 $perpage = optional_param('perpage', null, PARAM_INT);
  35 $viewmode = optional_param('view', 'default', PARAM_ALPHA); // Can be one of default, combined, courses, or categories.
  36
  37 // Search related params.
  38 $search = optional_param('search', '', PARAM_RAW); // Search words. Shortname, fullname, idnumber and summary get searched.
  39 $blocklist = optional_param('blocklist', 0, PARAM_INT); // Find courses containing this block.
  40 $modulelist = optional_param('modulelist', '', PARAM_PLUGIN); // Find courses containing the given modules.
  41
  42 if (!in_array($viewmode, array('default', 'combined', 'courses', 'categories'))) {
  43     $viewmode = 'default';
  44 }
  45
  46 $issearching = ($search !== '' || $blocklist !== 0 || $modulelist !== '');
  47 if ($issearching) {
  48     $viewmode = 'courses';
  49 }
  50
  51 $url = new moodle_url('/course/management.php');
  52 $systemcontext = $context = context_system::instance();
  53 if ($courseid) {
  54     $record = get_course($courseid);
  55     $course = new course_in_list($record);
  56     $category = coursecat::get($course->category);
  57     $categoryid = $category->id;
  58     $context = context_coursecat::instance($category->id);
  59     $url->param('categoryid', $categoryid);
  60     $url->param('courseid', $course->id);
  61
  62 } else if ($categoryid) {
  63     $courseid = null;
  64     $course = null;
  65     $category = coursecat::get($categoryid);
  66     $context = context_coursecat::instance($category->id);
  67     $url->param('categoryid', $category->id);
  68
  69 } else {
  70     $course = null;
  71     $courseid = null;
  72     $category = coursecat::get_default();
  73     $categoryid = $category->id;
  74     $context = context_coursecat::instance($category->id);
  75     $url->param('categoryid', $category->id);
  76 }
  77
  78 // Check if there is a selected category param, and if there is apply it.
  79 if ($course === null && $selectedcategoryid !== null && $selectedcategoryid !== $categoryid) {
  80     $url->param('categoryid', $selectedcategoryid);
  81 }
  82
  83 if ($page !== 0) {
  84     $url->param('page', $page);
  85 }
  86 if ($viewmode !== 'default') {
  87     $url->param('view', $viewmode);
  88 }
  89 if ($search !== '') {
  90     $url->param('search', $search);
  91 }
  92 if ($blocklist !== 0) {
  93     $url->param('blocklist', $search);
  94 }
  95 if ($modulelist !== '') {
  96     $url->param('modulelist', $search);
  97 }
  98
  99 $strmanagement = new lang_string('coursecatmanagement');
 100 $pageheading = format_string($SITE->fullname, true, array('context' => $systemcontext));
 101
 102 $PAGE->set_context($context);
 103 $PAGE->set_url($url);
 104 $PAGE->set_pagelayout('admin');
 105 $PAGE->set_title($strmanagement);
 106 $PAGE->set_heading($pageheading);
 107
 108 // This is a system level page that operates on other contexts.
 109 require_login();
 110
 111 if (!coursecat::has_capability_on_any(array('moodle/category:manage', 'moodle/course:create'))) {
 112     // The user isn't able to manage any categories. Lets redirect them to the relevant course/index.php page.
 113     $url = new moodle_url('/course/index.php');
 114     if ($categoryid) {
 115         $url->param('categoryid', $categoryid);
 116     }
 117     redirect($url);
 118 }
 119
 120 // If the user poses any of these capabilities then they will be able to see the admin
 121 // tree and the management link within it.
 122 // This is the most accurate form of navigation.
 123 $capabilities = array(
 124     'moodle/site:config',
 125     'moodle/backup:backupcourse',
 126     'moodle/category:manage',
 127     'moodle/course:create',
 128     'moodle/site:approvecourse'
 129 );
 130 if ($category && !has_any_capability($capabilities, $systemcontext)) {
 131     // If the user doesn't poses any of these system capabilities then we're going to mark the manage link in the settings block
 132     // as active, tell the page to ignore the active path and just build what the user would expect.
 133     // This will at least give the page some relevant navigation.
 134     navigation_node::override_active_url(new moodle_url('/course/management.php', array('categoryid' => $category->id)));
 135     $PAGE->set_category_by_id($category->id);
 136     $PAGE->navbar->ignore_active(true);
 137     $PAGE->navbar->add(get_string('coursemgmt', 'admin'), $PAGE->url->out_omit_querystring());
 138 } else {
 139     // If user has system capabilities, make sure the "Manage courses and categories" item in Administration block is active.
 140     navigation_node::require_admin_tree();
 141     navigation_node::override_active_url(new moodle_url('/course/management.php'));
 142 }
 143 if (!$issearching && $category !== null) {
 144     $parents = coursecat::get_many($category->get_parents());
 145     $parents[] = $category;
 146     foreach ($parents as $parent) {
 147         $PAGE->navbar->add(
 148             $parent->get_formatted_name(),
 149             new moodle_url('/course/management.php', array('categoryid' => $parent->id))
 150         );
 151     }
 152     if ($course instanceof course_in_list) {
 153         // Use the list name so that it matches whats being displayed below.
 154         $PAGE->navbar->add($course->get_formatted_name());
 155     }
 156 }
 157
 158 $notificationspass = array();
 159 $notificationsfail = array();
 160
 161 if ($action !== false && confirm_sesskey()) {
 162     // Actions:
 163     // - resortcategories : Resort the courses in the given category.
 164     // - resortcourses : Resort courses
 165     // - showcourse : make a course visible.
 166     // - hidecourse : make a course hidden.
 167     // - movecourseup : move the selected course up one.
 168     // - movecoursedown : move the selected course down.
 169     // - showcategory : make a category visible.
 170     // - hidecategory : make a category hidden.
 171     // - movecategoryup : move category up.
 172     // - movecategorydown : move category down.
 173     // - deletecategory : delete the category either in full, or moving contents.
 174     // - bulkaction : performs bulk actions:
 175     //    - bulkmovecourses.
 176     //    - bulkmovecategories.
 177     //    - bulkresortcategories.
 178     $redirectback = false;
 179     $redirectmessage = false;
 180     switch ($action) {
 181         case 'resortcategories' :
 182             $sort = required_param('resort', PARAM_ALPHA);
 183             $cattosort = coursecat::get((int)optional_param('categoryid', 0, PARAM_INT));
 184             $redirectback = \core_course\management\helper::action_category_resort_subcategories($cattosort, $sort);
 185             break;
 186         case 'resortcourses' :
 187             // They must have specified a category.
 188             required_param('categoryid', PARAM_INT);
 189             $sort = required_param('resort', PARAM_ALPHA);
 190             \core_course\management\helper::action_category_resort_courses($category, $sort);
 191             break;
 192         case 'showcourse' :
 193             $redirectback = \core_course\management\helper::action_course_show($course);
 194             break;
 195         case 'hidecourse' :
 196             $redirectback = \core_course\management\helper::action_course_hide($course);
 197             break;
 198         case 'movecourseup' :
 199             // They must have specified a category and a course.
 200             required_param('categoryid', PARAM_INT);
 201             required_param('courseid', PARAM_INT);
 202             $redirectback = \core_course\management\helper::action_course_change_sortorder_up_one($course, $category);
 203             break;
 204         case 'movecoursedown' :
 205             // They must have specified a category and a course.
 206             required_param('categoryid', PARAM_INT);
 207             required_param('courseid', PARAM_INT);
 208             $redirectback = \core_course\management\helper::action_course_change_sortorder_down_one($course, $category);
 209             break;
 210         case 'showcategory' :
 211             // They must have specified a category.
 212             required_param('categoryid', PARAM_INT);
 213             $redirectback = \core_course\management\helper::action_category_show($category);
 214             break;
 215         case 'hidecategory' :
 216             // They must have specified a category.
 217             required_param('categoryid', PARAM_INT);
 218             $redirectback = \core_course\management\helper::action_category_hide($category);
 219             break;
 220         case 'movecategoryup' :
 221             // They must have specified a category.
 222             required_param('categoryid', PARAM_INT);
 223             $redirectback = \core_course\management\helper::action_category_change_sortorder_up_one($category);
 224             break;
 225         case 'movecategorydown' :
 226             // They must have specified a category.
 227             required_param('categoryid', PARAM_INT);
 228             $redirectback = \core_course\management\helper::action_category_change_sortorder_down_one($category);
 229             break;
 230         case 'deletecategory':
 231             // They must have specified a category.
 232             required_param('categoryid', PARAM_INT);
 233             if (!$category->can_delete()) {
 234                 throw new moodle_exception('permissiondenied', 'error', '', null, 'coursecat::can_resort');
 235             }
 236             $mform = new core_course_deletecategory_form(null, $category);
 237             if ($mform->is_cancelled()) {
 238                 redirect($PAGE->url);
 239             }
 240             // Start output.
 241             /* @var core_course_management_renderer|core_renderer $renderer */
 242             $renderer = $PAGE->get_renderer('core_course', 'management');
 243             echo $renderer->header();
 244             echo $renderer->heading(get_string('deletecategory', 'moodle', $category->get_formatted_name()));
 245
 246             if ($data = $mform->get_data()) {
 247                 // The form has been submit handle it.
 248                 if ($data->fulldelete == 1 && $category->can_delete_full()) {
 249                     $continueurl = new moodle_url('/course/management.php');
 250                     if ($category->parent != '0') {
 251                         $continueurl->param('categoryid', $category->parent);
 252                     }
 253                     $notification = get_string('coursecategorydeleted', '', $category->get_formatted_name());
 254                     $deletedcourses = $category->delete_full(true);
 255                     foreach ($deletedcourses as $course) {
 256                         echo $renderer->notification(get_string('coursedeleted', '', $course->shortname), 'notifysuccess');
 257                     }
 258                     echo $renderer->notification($notification, 'notifysuccess');
 259                     echo $renderer->continue_button($continueurl);
 260                 } else if ($data->fulldelete == 0 && $category->can_move_content_to($data->newparent)) {
 261                     $continueurl = new moodle_url('/course/management.php', array('categoryid' => $data->newparent));
 262                     $category->delete_move($data->newparent, true);
 263                     echo $renderer->continue_button($continueurl);
 264                 } else {
 265                     // Some error in parameters (user is cheating?)
 266                     $mform->display();
 267                 }
 268             } else {
 269                 // Display the form.
 270                 $mform->display();
 271             }
 272             // Finish output and exit.
 273             echo $renderer->footer();
 274             exit();
 275             break;
 276         case 'bulkaction':
 277             $bulkmovecourses = optional_param('bulkmovecourses', false, PARAM_BOOL);
 278             $bulkmovecategories = optional_param('bulkmovecategories', false, PARAM_BOOL);
 279             $bulkresortcategories = optional_param('bulksort', false, PARAM_BOOL);
 280
 281             if ($bulkmovecourses) {
 282                 // Move courses out of the current category and into a new category.
 283                 // They must have specified a category.
 284                 required_param('categoryid', PARAM_INT);
 285                 $movetoid = required_param('movecoursesto', PARAM_INT);
 286                 $courseids = optional_param_array('bc', false, PARAM_INT);
 287                 if ($courseids === false) {
 288                     break;
 289                 }
 290                 $moveto = coursecat::get($movetoid);
 291                 try {
 292                     // If this fails we want to catch the exception and report it.
 293                     $redirectback = \core_course\management\helper::action_category_move_courses_into($category, $moveto,
 294                         $courseids);
 295                     if ($redirectback) {
 296                         $a = new stdClass;
 297                         $a->category = $moveto->get_formatted_name();
 298                         $a->courses = count($courseids);
 299                         $redirectmessage = get_string('bulkmovecoursessuccess', 'moodle', $a);
 300                     }
 301                 } catch (moodle_exception $ex) {
 302                     $redirectback = false;
 303                     $notificationsfail[] = $ex->getMessage();
 304                 }
 305             } else if ($bulkmovecategories) {
 306                 $categoryids = optional_param_array('bcat', array(), PARAM_INT);
 307                 $movetocatid = required_param('movecategoriesto', PARAM_INT);
 308                 $movetocat = coursecat::get($movetocatid);
 309                 $movecount = 0;
 310                 foreach ($categoryids as $id) {
 311                     $cattomove = coursecat::get($id);
 312                     if ($id == $movetocatid) {
 313                         $notificationsfail[] = get_string('movecategoryownparent', 'error', $cattomove->get_formatted_name());
 314                         continue;
 315                     }
 316                     if (strpos($movetocat->path, $cattomove->path) === 0) {
 317                         $notificationsfail[] = get_string('movecategoryparentconflict', 'error', $cattomove->get_formatted_name());
 318                         continue;
 319                     }
 320                     if ($cattomove->parent != $movetocatid) {
 321                         if ($cattomove->can_change_parent($movetocatid)) {
 322                             $cattomove->change_parent($movetocatid);
 323                             $movecount++;
 324                         } else {
 325                             $notificationsfail[] = get_string('movecategorynotpossible', 'error', $cattomove->get_formatted_name());
 326                         }
 327                     }
 328                 }
 329                 if ($movecount > 1) {
 330                     $a = new stdClass;
 331                     $a->count = $movecount;
 332                     $a->to = $movetocat->get_formatted_name();
 333                     $movesuccessstrkey = 'movecategoriessuccess';
 334                     if ($movetocatid == 0) {
 335                         $movesuccessstrkey = 'movecategoriestotopsuccess';
 336                     }
 337                     $notificationspass[] = get_string($movesuccessstrkey, 'moodle', $a);
 338                 } else if ($movecount === 1) {
 339                     $a = new stdClass;
 340                     $a->moved = $cattomove->get_formatted_name();
 341                     $a->to = $movetocat->get_formatted_name();
 342                     $movesuccessstrkey = 'movecategorysuccess';
 343                     if ($movetocatid == 0) {
 344                         $movesuccessstrkey = 'movecategorytotopsuccess';
 345                     }
 346                     $notificationspass[] = get_string($movesuccessstrkey, 'moodle', $a);
 347                 }
 348             } else if ($bulkresortcategories) {
 349                 $for = required_param('selectsortby', PARAM_ALPHA);
 350                 $sortcategoriesby = required_param('resortcategoriesby', PARAM_ALPHA);
 351                 $sortcoursesby = required_param('resortcoursesby', PARAM_ALPHA);
 352
 353                 if ($sortcategoriesby === 'none' && $sortcoursesby === 'none') {
 354                     // They're not sorting anything.
 355                     break;
 356                 }
 357                 if (!in_array($sortcategoriesby, array('idnumber', 'idnumberdesc',
 358                                                        'name', 'namedesc'))) {
 359                     $sortcategoriesby = false;
 360                 }
 361                 if (!in_array($sortcoursesby, array('timecreated', 'timecreateddesc',
 362                                                     'idnumber', 'idnumberdesc',
 363                                                     'fullname', 'fullnamedesc',
 364                                                     'shortname', 'shortnamedesc'))) {
 365                     $sortcoursesby = false;
 366                 }
 367
 368                 if ($for === 'thiscategory') {
 369                     $categoryids = array(
 370                         required_param('currentcategoryid', PARAM_INT)
 371                     );
 372                     $categories = coursecat::get_many($categoryids);
 373                 } else if ($for === 'selectedcategories') {
 374                     // Bulk resort selected categories.
 375                     $categoryids = optional_param_array('bcat', false, PARAM_INT);
 376                     $sort = required_param('resortcategoriesby', PARAM_ALPHA);
 377                     if ($categoryids === false) {
 378                         break;
 379                     }
 380                     $categories = coursecat::get_many($categoryids);
 381                 } else if ($for === 'allcategories') {
 382                     if ($sortcategoriesby && coursecat::get(0)->can_resort_subcategories()) {
 383                         \core_course\management\helper::action_category_resort_subcategories(coursecat::get(0), $sortcategoriesby);
 384                     }
 385                     $categorieslist = coursecat::make_categories_list('moodle/category:manage');
 386                     $categoryids = array_keys($categorieslist);
 387                     $categories = coursecat::get_many($categoryids);
 388                     unset($categorieslist);
 389                 } else {
 390                     break;
 391                 }
 392                 foreach ($categories as $cat) {
 393                     if ($sortcategoriesby && $cat->can_resort_subcategories()) {
 394                         // Don't clean up here, we'll do it once we're all done.
 395                         \core_course\management\helper::action_category_resort_subcategories($cat, $sortcategoriesby, false);
 396                     }
 397                     if ($sortcoursesby && $cat->can_resort_courses()) {
 398                         \core_course\management\helper::action_category_resort_courses($cat, $sortcoursesby, false);
 399                     }
 400                 }
 401                 coursecat::resort_categories_cleanup($sortcoursesby !== false);
 402                 if ($category === null && count($categoryids) === 1) {
 403                     // They're bulk sorting just a single category and they've not selected a category.
 404                     // Lets for convenience sake auto-select the category that has been resorted for them.
 405                     redirect(new moodle_url($PAGE->url, array('categoryid' => reset($categoryids))));
 406                 }
 407             }
 408     }
 409     if ($redirectback) {
 410         if ($redirectmessage) {
 411             redirect($PAGE->url, $redirectmessage, 5);
 412         } else {
 413             redirect($PAGE->url);
 414         }
 415     }
 416 }
 417
 418 if (!is_null($perpage)) {
 419     set_user_preference('coursecat_management_perpage', $perpage);
 420 } else {
 421     $perpage = get_user_preferences('coursecat_management_perpage', $CFG->coursesperpage);
 422 }
 423 if ((int)$perpage != $perpage || $perpage < 2) {
 424     $perpage = $CFG->coursesperpage;
 425 }
 426
 427 $categorysize = 4;
 428 $coursesize = 4;
 429 $detailssize = 4;
 430 if ($viewmode === 'default' || $viewmode === 'combined') {
 431     if (isset($courseid)) {
 432         $class = 'columns-3';
 433     } else {
 434         $categorysize = 5;
 435         $coursesize = 7;
 436         $class = 'columns-2';
 437     }
 438 } else if ($viewmode === 'categories') {
 439     $categorysize = 12;
 440     $class = 'columns-1';
 441 } else if ($viewmode === 'courses') {
 442     if (isset($courseid)) {
 443         $coursesize = 6;
 444         $detailssize = 6;
 445         $class = 'columns-2';
 446     } else {
 447         $coursesize = 12;
 448         $class = 'columns-1';
 449     }
 450 }
 451 if ($viewmode === 'default' || $viewmode === 'combined') {
 452     $class .= ' viewmode-cobmined';
 453 } else {
 454     $class .= ' viewmode-'.$viewmode;
 455 }
 456 if (($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'courses') && !empty($courseid)) {
 457     $class .= ' course-selected';
 458 }
 459
 460 /* @var core_course_management_renderer|core_renderer $renderer */
 461 $renderer = $PAGE->get_renderer('core_course', 'management');
 462 $renderer->enhance_management_interface();
 463
 464 $displaycategorylisting = ($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'categories');
 465 $displaycourselisting = ($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'courses');
 466 $displaycoursedetail = (isset($courseid));
 467
 468 echo $renderer->header();
 469
 470 if (!$issearching) {
 471     echo $renderer->management_heading($strmanagement, $viewmode, $categoryid);
 472 } else {
 473     echo $renderer->management_heading(new lang_string('searchresults'));
 474 }
 475
 476 if (count($notificationspass) > 0) {
 477     echo $renderer->notification(join('<br />', $notificationspass), 'notifysuccess');
 478 }
 479 if (count($notificationsfail) > 0) {
 480     echo $renderer->notification(join('<br />', $notificationsfail));
 481 }
 482
 483 // Start the management form.
 484 echo $renderer->management_form_start();
 485
 486 echo $renderer->accessible_skipto_links($displaycategorylisting, $displaycourselisting, $displaycoursedetail);
 487
 488 echo $renderer->grid_start('course-category-listings', $class);
 489
 490 if ($displaycategorylisting) {
 491     echo $renderer->grid_column_start($categorysize, 'category-listing');
 492     echo $renderer->category_listing($category);
 493     echo $renderer->grid_column_end();
 494 }
 495 if ($displaycourselisting) {
 496     echo $renderer->grid_column_start($coursesize, 'course-listing');
 497     if (!$issearching) {
 498         echo $renderer->course_listing($category, $course, $page, $perpage);
 499     } else {
 500         list($courses, $coursescount, $coursestotal) =
 501             \core_course\management\helper::search_courses($search, $blocklist, $modulelist, $page, $perpage);
 502         echo $renderer->search_listing($courses, $coursestotal, $course, $page, $perpage);
 503     }
 504     echo $renderer->grid_column_end();
 505     if ($displaycoursedetail) {
 506         echo $renderer->grid_column_start($detailssize, 'course-detail');
 507         echo $renderer->course_detail($course);
 508         echo $renderer->grid_column_end();
 509     }
 510 }
 511 echo $renderer->grid_end();
 512
 513 // End of the management form.
 514 echo $renderer->management_form_end();
 515 echo $renderer->course_search_form($search);
 516
 517 echo $renderer->footer();