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.'/course/lib.php');
  27
  28 $categoryid = optional_param('categoryid', null, PARAM_INT);
  29 $selectedcategoryid = optional_param('selectedcategoryid', null, PARAM_INT);
  30 $courseid = optional_param('courseid', null, PARAM_INT);
  31 $action = optional_param('action', false, PARAM_ALPHA);
  32 $page = optional_param('page', 0, PARAM_INT);
  33 $perpage = optional_param('perpage', null, PARAM_INT);
  34 $viewmode = optional_param('view', 'default', PARAM_ALPHA); // Can be one of default, combined, courses, or categories.
  35
  36 // Search related params.
  37 $search = optional_param('search', '', PARAM_RAW); // Search words. Shortname, fullname, idnumber and summary get searched.
  38 $blocklist = optional_param('blocklist', 0, PARAM_INT); // Find courses containing this block.
  39 $modulelist = optional_param('modulelist', '', PARAM_PLUGIN); // Find courses containing the given modules.
  40
  41 if (!in_array($viewmode, array('default', 'combined', 'courses', 'categories'))) {
  42     $viewmode = 'default';
  43 }
  44
  45 $issearching = ($search !== '' || $blocklist !== 0 || $modulelist !== '');
  46 if ($issearching) {
  47     $viewmode = 'courses';
  48 }
  49
  50 $url = new moodle_url('/course/management.php');
  51 $systemcontext = $context = context_system::instance();
  52 if ($courseid) {
  53     $record = get_course($courseid);
  54     $course = new core_course_list_element($record);
  55     $category = core_course_category::get($course->category);
  56     $categoryid = $category->id;
  57     $context = context_coursecat::instance($category->id);
  58     $url->param('categoryid', $categoryid);
  59     $url->param('courseid', $course->id);
  60
  61 } else if ($categoryid) {
  62     $courseid = null;
  63     $course = null;
  64     $category = core_course_category::get($categoryid);
  65     $context = context_coursecat::instance($category->id);
  66     $url->param('categoryid', $category->id);
  67
  68 } else {
  69     $course = null;
  70     $courseid = null;
  71     $topchildren = core_course_category::top()->get_children();
  72     if (empty($topchildren)) {
  73         throw new moodle_exception('cannotviewcategory', 'error');
  74     }
  75     $category = reset($topchildren);
  76     $categoryid = $category->id;
  77     $context = context_coursecat::instance($category->id);
  78     $url->param('categoryid', $category->id);
  79 }
  80
  81 // Check if there is a selected category param, and if there is apply it.
  82 if ($course === null && $selectedcategoryid !== null && $selectedcategoryid !== $categoryid) {
  83     $url->param('categoryid', $selectedcategoryid);
  84 }
  85
  86 if ($page !== 0) {
  87     $url->param('page', $page);
  88 }
  89 if ($viewmode !== 'default') {
  90     $url->param('view', $viewmode);
  91 }
  92 if ($search !== '') {
  93     $url->param('search', $search);
  94 }
  95 if ($blocklist !== 0) {
  96     $url->param('blocklist', $search);
  97 }
  98 if ($modulelist !== '') {
  99     $url->param('modulelist', $search);
 100 }
 101
 102 $strmanagement = new lang_string('coursecatmanagement');
 103 $pageheading = $category->get_formatted_name();
 104
 105 $PAGE->set_context($context);
 106 $PAGE->set_url($url);
 107 $PAGE->set_pagelayout('admin');
 108 $PAGE->set_title($strmanagement);
 109 $PAGE->set_heading($pageheading);
 110 $PAGE->requires->js_call_amd('core_course/copy_modal', 'init', array($context->id));
 111 $PAGE->set_secondary_active_tab('categorymain');
 112
 113 // This is a system level page that operates on other contexts.
 114 require_login();
 115
 116 if (!core_course_category::has_capability_on_any(array('moodle/category:manage', 'moodle/course:create'))) {
 117     // The user isn't able to manage any categories. Lets redirect them to the relevant course/index.php page.
 118     $url = new moodle_url('/course/index.php');
 119     if ($categoryid) {
 120         $url->param('categoryid', $categoryid);
 121     }
 122     redirect($url);
 123 }
 124
 125 if (!$issearching && $category !== null) {
 126     $parents = core_course_category::get_many($category->get_parents());
 127     $parents[] = $category;
 128     foreach ($parents as $parent) {
 129         $PAGE->navbar->add(
 130             $parent->get_formatted_name(),
 131             new moodle_url('/course/index.php', array('categoryid' => $parent->id))
 132         );
 133     }
 134     if ($course instanceof core_course_list_element) {
 135         // Use the list name so that it matches whats being displayed below.
 136         $PAGE->navbar->add($course->get_formatted_name());
 137     }
 138 }
 139
 140 // If the user poses any of these capabilities then they will be able to see the admin
 141 // tree and the management link within it.
 142 // This is the most accurate form of navigation.
 143 $capabilities = array(
 144     'moodle/site:config',
 145     'moodle/backup:backupcourse',
 146     'moodle/category:manage',
 147     'moodle/course:create',
 148     'moodle/site:approvecourse'
 149 );
 150 if ($category && !has_any_capability($capabilities, $systemcontext)) {
 151     // If the user doesn't poses any of these system capabilities then we're going to mark the category link in the
 152     // settings block as active, tell the page to ignore the active path and just build what the user would expect.
 153     // This will at least give the page some relevant navigation.
 154     navigation_node::override_active_url(new moodle_url('/course/index.php', array('categoryid' => $category->id)));
 155     $PAGE->set_category_by_id($category->id);
 156     $PAGE->navbar->ignore_active(true);
 157 } else {
 158     // If user has system capabilities, make sure the "Category" item in Administration block is active.
 159     navigation_node::require_admin_tree();
 160     navigation_node::override_active_url(new moodle_url('/course/index.php'));
 161 }
 162 $PAGE->navbar->add(get_string('coursemgmt', 'admin'), $PAGE->url->out_omit_querystring());
 163 $PAGE->set_primary_active_tab('home');
 164
 165 $notificationspass = array();
 166 $notificationsfail = array();
 167
 168 if ($action !== false && confirm_sesskey()) {
 169     // Actions:
 170     // - resortcategories : Resort the courses in the given category.
 171     // - resortcourses : Resort courses
 172     // - showcourse : make a course visible.
 173     // - hidecourse : make a course hidden.
 174     // - movecourseup : move the selected course up one.
 175     // - movecoursedown : move the selected course down.
 176     // - showcategory : make a category visible.
 177     // - hidecategory : make a category hidden.
 178     // - movecategoryup : move category up.
 179     // - movecategorydown : move category down.
 180     // - deletecategory : delete the category either in full, or moving contents.
 181     // - bulkaction : performs bulk actions:
 182     //    - bulkmovecourses.
 183     //    - bulkmovecategories.
 184     //    - bulkresortcategories.
 185     $redirectback = false;
 186     $redirectmessage = false;
 187     switch ($action) {
 188         case 'resortcategories' :
 189             $sort = required_param('resort', PARAM_ALPHA);
 190             $cattosort = core_course_category::get((int)optional_param('categoryid', 0, PARAM_INT));
 191             $redirectback = \core_course\management\helper::action_category_resort_subcategories($cattosort, $sort);
 192             break;
 193         case 'resortcourses' :
 194             // They must have specified a category.
 195             required_param('categoryid', PARAM_INT);
 196             $sort = required_param('resort', PARAM_ALPHA);
 197             \core_course\management\helper::action_category_resort_courses($category, $sort);
 198             break;
 199         case 'showcourse' :
 200             $redirectback = \core_course\management\helper::action_course_show($course);
 201             break;
 202         case 'hidecourse' :
 203             $redirectback = \core_course\management\helper::action_course_hide($course);
 204             break;
 205         case 'movecourseup' :
 206             // They must have specified a category and a course.
 207             required_param('categoryid', PARAM_INT);
 208             required_param('courseid', PARAM_INT);
 209             $redirectback = \core_course\management\helper::action_course_change_sortorder_up_one($course, $category);
 210             break;
 211         case 'movecoursedown' :
 212             // They must have specified a category and a course.
 213             required_param('categoryid', PARAM_INT);
 214             required_param('courseid', PARAM_INT);
 215             $redirectback = \core_course\management\helper::action_course_change_sortorder_down_one($course, $category);
 216             break;
 217         case 'showcategory' :
 218             // They must have specified a category.
 219             required_param('categoryid', PARAM_INT);
 220             $redirectback = \core_course\management\helper::action_category_show($category);
 221             break;
 222         case 'hidecategory' :
 223             // They must have specified a category.
 224             required_param('categoryid', PARAM_INT);
 225             $redirectback = \core_course\management\helper::action_category_hide($category);
 226             break;
 227         case 'movecategoryup' :
 228             // They must have specified a category.
 229             required_param('categoryid', PARAM_INT);
 230             $redirectback = \core_course\management\helper::action_category_change_sortorder_up_one($category);
 231             break;
 232         case 'movecategorydown' :
 233             // They must have specified a category.
 234             required_param('categoryid', PARAM_INT);
 235             $redirectback = \core_course\management\helper::action_category_change_sortorder_down_one($category);
 236             break;
 237         case 'deletecategory':
 238             // They must have specified a category.
 239             required_param('categoryid', PARAM_INT);
 240             if (!$category->can_delete()) {
 241                 throw new moodle_exception('permissiondenied', 'error', '', null, 'core_course_category::can_resort');
 242             }
 243             $mform = new core_course_deletecategory_form(null, $category);
 244             if ($mform->is_cancelled()) {
 245                 redirect($PAGE->url);
 246             }
 247             // Start output.
 248             /* @var core_course_management_renderer|core_renderer $renderer */
 249             $renderer = $PAGE->get_renderer('core_course', 'management');
 250             echo $renderer->header();
 251             echo $renderer->heading(get_string('deletecategory', 'moodle', $category->get_formatted_name()));
 252
 253             if ($data = $mform->get_data()) {
 254                 // The form has been submit handle it.
 255                 if ($data->fulldelete == 1 && $category->can_delete_full()) {
 256                     $continueurl = new moodle_url('/course/management.php');
 257                     if ($category->parent != '0') {
 258                         $continueurl->param('categoryid', $category->parent);
 259                     }
 260                     $notification = get_string('coursecategorydeleted', '', $category->get_formatted_name());
 261                     $deletedcourses = $category->delete_full(true);
 262                     foreach ($deletedcourses as $course) {
 263                         echo $renderer->notification(get_string('coursedeleted', '', $course->shortname), 'notifysuccess');
 264                     }
 265                     echo $renderer->notification($notification, 'notifysuccess');
 266                     echo $renderer->continue_button($continueurl);
 267                 } else if ($data->fulldelete == 0 && $category->can_move_content_to($data->newparent)) {
 268                     $continueurl = new moodle_url('/course/management.php', array('categoryid' => $data->newparent));
 269                     $category->delete_move($data->newparent, true);
 270                     echo $renderer->continue_button($continueurl);
 271                 } else {
 272                     // Some error in parameters (user is cheating?)
 273                     $mform->display();
 274                 }
 275             } else {
 276                 // Display the form.
 277                 $mform->display();
 278             }
 279             // Finish output and exit.
 280             echo $renderer->footer();
 281             exit();
 282             break;
 283         case 'bulkaction':
 284             $bulkmovecourses = optional_param('bulkmovecourses', false, PARAM_BOOL);
 285             $bulkmovecategories = optional_param('bulkmovecategories', false, PARAM_BOOL);
 286             $bulkresortcategories = optional_param('bulksort', false, PARAM_BOOL);
 287
 288             if ($bulkmovecourses) {
 289                 // Move courses out of the current category and into a new category.
 290                 // They must have specified a category.
 291                 required_param('categoryid', PARAM_INT);
 292                 $movetoid = required_param('movecoursesto', PARAM_INT);
 293                 $courseids = optional_param_array('bc', false, PARAM_INT);
 294                 if ($courseids === false) {
 295                     break;
 296                 }
 297                 $moveto = core_course_category::get($movetoid);
 298                 try {
 299                     // If this fails we want to catch the exception and report it.
 300                     $redirectback = \core_course\management\helper::move_courses_into_category($moveto,
 301                         $courseids);
 302                     if ($redirectback) {
 303                         $a = new stdClass;
 304                         $a->category = $moveto->get_formatted_name();
 305                         $a->courses = count($courseids);
 306                         $redirectmessage = get_string('bulkmovecoursessuccess', 'moodle', $a);
 307                     }
 308                 } catch (moodle_exception $ex) {
 309                     $redirectback = false;
 310                     $notificationsfail[] = $ex->getMessage();
 311                 }
 312             } else if ($bulkmovecategories) {
 313                 $categoryids = optional_param_array('bcat', array(), PARAM_INT);
 314                 $movetocatid = required_param('movecategoriesto', PARAM_INT);
 315                 $movetocat = core_course_category::get($movetocatid);
 316                 $movecount = 0;
 317                 foreach ($categoryids as $id) {
 318                     $cattomove = core_course_category::get($id);
 319                     if ($id == $movetocatid) {
 320                         $notificationsfail[] = get_string('movecategoryownparent', 'error', $cattomove->get_formatted_name());
 321                         continue;
 322                     }
 323                     // Don't allow user to move selected category into one of it's own sub-categories.
 324                     if (strpos($movetocat->path, $cattomove->path . '/') === 0) {
 325                         $notificationsfail[] = get_string('movecategoryparentconflict', 'error', $cattomove->get_formatted_name());
 326                         continue;
 327                     }
 328                     if ($cattomove->parent != $movetocatid) {
 329                         if ($cattomove->can_change_parent($movetocatid)) {
 330                             $cattomove->change_parent($movetocatid);
 331                             $movecount++;
 332                         } else {
 333                             $notificationsfail[] = get_string('movecategorynotpossible', 'error', $cattomove->get_formatted_name());
 334                         }
 335                     }
 336                 }
 337                 if ($movecount > 1) {
 338                     $a = new stdClass;
 339                     $a->count = $movecount;
 340                     $a->to = $movetocat->get_formatted_name();
 341                     $movesuccessstrkey = 'movecategoriessuccess';
 342                     if ($movetocatid == 0) {
 343                         $movesuccessstrkey = 'movecategoriestotopsuccess';
 344                     }
 345                     $notificationspass[] = get_string($movesuccessstrkey, 'moodle', $a);
 346                 } else if ($movecount === 1) {
 347                     $a = new stdClass;
 348                     $a->moved = $cattomove->get_formatted_name();
 349                     $a->to = $movetocat->get_formatted_name();
 350                     $movesuccessstrkey = 'movecategorysuccess';
 351                     if ($movetocatid == 0) {
 352                         $movesuccessstrkey = 'movecategorytotopsuccess';
 353                     }
 354                     $notificationspass[] = get_string($movesuccessstrkey, 'moodle', $a);
 355                 }
 356             } else if ($bulkresortcategories) {
 357                 $for = required_param('selectsortby', PARAM_ALPHA);
 358                 $sortcategoriesby = required_param('resortcategoriesby', PARAM_ALPHA);
 359                 $sortcoursesby = required_param('resortcoursesby', PARAM_ALPHA);
 360
 361                 if ($sortcategoriesby === 'none' && $sortcoursesby === 'none') {
 362                     // They're not sorting anything.
 363                     break;
 364                 }
 365                 if (!in_array($sortcategoriesby, array('idnumber', 'idnumberdesc',
 366                                                        'name', 'namedesc'))) {
 367                     $sortcategoriesby = false;
 368                 }
 369                 if (!in_array($sortcoursesby, array('timecreated', 'timecreateddesc',
 370                                                     'idnumber', 'idnumberdesc',
 371                                                     'fullname', 'fullnamedesc',
 372                                                     'shortname', 'shortnamedesc'))) {
 373                     $sortcoursesby = false;
 374                 }
 375
 376                 if ($for === 'thiscategory') {
 377                     $categoryids = array(
 378                         required_param('currentcategoryid', PARAM_INT)
 379                     );
 380                     $categories = core_course_category::get_many($categoryids);
 381                 } else if ($for === 'selectedcategories') {
 382                     // Bulk resort selected categories.
 383                     $categoryids = optional_param_array('bcat', false, PARAM_INT);
 384                     $sort = required_param('resortcategoriesby', PARAM_ALPHA);
 385                     if ($categoryids === false) {
 386                         break;
 387                     }
 388                     $categories = core_course_category::get_many($categoryids);
 389                 } else if ($for === 'allcategories') {
 390                     if ($sortcategoriesby && core_course_category::top()->can_resort_subcategories()) {
 391                         \core_course\management\helper::action_category_resort_subcategories(
 392                             core_course_category::top(), $sortcategoriesby);
 393                     }
 394                     $categorieslist = core_course_category::make_categories_list('moodle/category:manage');
 395                     $categoryids = array_keys($categorieslist);
 396                     $categories = core_course_category::get_many($categoryids);
 397                     unset($categorieslist);
 398                 } else {
 399                     break;
 400                 }
 401                 foreach ($categories as $cat) {
 402                     if ($sortcategoriesby && $cat->can_resort_subcategories()) {
 403                         // Don't clean up here, we'll do it once we're all done.
 404                         \core_course\management\helper::action_category_resort_subcategories($cat, $sortcategoriesby, false);
 405                     }
 406                     if ($sortcoursesby && $cat->can_resort_courses()) {
 407                         \core_course\management\helper::action_category_resort_courses($cat, $sortcoursesby, false);
 408                     }
 409                 }
 410                 core_course_category::resort_categories_cleanup($sortcoursesby !== false);
 411                 if ($category === null && count($categoryids) === 1) {
 412                     // They're bulk sorting just a single category and they've not selected a category.
 413                     // Lets for convenience sake auto-select the category that has been resorted for them.
 414                     redirect(new moodle_url($PAGE->url, array('categoryid' => reset($categoryids))));
 415                 }
 416             }
 417     }
 418     if ($redirectback) {
 419         if ($redirectmessage) {
 420             redirect($PAGE->url, $redirectmessage, 5);
 421         } else {
 422             redirect($PAGE->url);
 423         }
 424     }
 425 }
 426
 427 if (!is_null($perpage)) {
 428     set_user_preference('coursecat_management_perpage', $perpage);
 429 } else {
 430     $perpage = get_user_preferences('coursecat_management_perpage', $CFG->coursesperpage);
 431 }
 432 if ((int)$perpage != $perpage || $perpage < 2) {
 433     $perpage = $CFG->coursesperpage;
 434 }
 435
 436 $categorysize = 4;
 437 $coursesize = 4;
 438 $detailssize = 4;
 439 if ($viewmode === 'default' || $viewmode === 'combined') {
 440     if (isset($courseid)) {
 441         $class = 'columns-3';
 442     } else {
 443         $categorysize = 5;
 444         $coursesize = 7;
 445         $class = 'columns-2';
 446     }
 447 } else if ($viewmode === 'categories') {
 448     $categorysize = 12;
 449     $class = 'columns-1';
 450 } else if ($viewmode === 'courses') {
 451     if (isset($courseid)) {
 452         $coursesize = 6;
 453         $detailssize = 6;
 454         $class = 'columns-2';
 455     } else {
 456         $coursesize = 12;
 457         $class = 'columns-1';
 458     }
 459 }
 460 if ($viewmode === 'default' || $viewmode === 'combined') {
 461     $class .= ' viewmode-combined';
 462 } else {
 463     $class .= ' viewmode-'.$viewmode;
 464 }
 465 if (($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'courses') && !empty($courseid)) {
 466     $class .= ' course-selected';
 467 }
 468
 469 /* @var core_course_management_renderer|core_renderer $renderer */
 470 $renderer = $PAGE->get_renderer('core_course', 'management');
 471 $renderer->enhance_management_interface();
 472
 473 $displaycategorylisting = ($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'categories');
 474 $displaycourselisting = ($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'courses');
 475 $displaycoursedetail = (isset($courseid));
 476
 477 echo $renderer->header();
 478 $actionbar = new \core_course\output\manage_categories_action_bar($PAGE, $viewmode, $course, $search);
 479 echo $renderer->render_action_bar($actionbar);
 480
 481 if (count($notificationspass) > 0) {
 482     echo $renderer->notification(join('<br />', $notificationspass), 'notifysuccess');
 483 }
 484 if (count($notificationsfail) > 0) {
 485     echo $renderer->notification(join('<br />', $notificationsfail));
 486 }
 487
 488 // Start the management form.
 489
 490 echo $renderer->management_form_start();
 491
 492 echo $renderer->accessible_skipto_links($displaycategorylisting, $displaycourselisting, $displaycoursedetail);
 493
 494 echo $renderer->grid_start('course-category-listings', $class);
 495
 496 if ($displaycategorylisting) {
 497     echo $renderer->grid_column_start($categorysize, 'category-listing');
 498     echo $renderer->category_listing($category);
 499     echo $renderer->grid_column_end();
 500 }
 501 if ($displaycourselisting) {
 502     echo $renderer->grid_column_start($coursesize, 'course-listing');
 503     if (!$issearching) {
 504         echo $renderer->course_listing($category, $course, $page, $perpage, $viewmode);
 505     } else {
 506         list($courses, $coursescount, $coursestotal) =
 507             \core_course\management\helper::search_courses($search, $blocklist, $modulelist, $page, $perpage);
 508         echo $renderer->search_listing($courses, $coursestotal, $course, $page, $perpage, $search);
 509     }
 510     echo $renderer->grid_column_end();
 511     if ($displaycoursedetail) {
 512         echo $renderer->grid_column_start($detailssize, 'course-detail');
 513         echo $renderer->course_detail($course);
 514         echo $renderer->grid_column_end();
 515     }
 516 }
 517 echo $renderer->grid_end();
 518
 519 // End of the management form.
 520 echo $renderer->management_form_end();
 521
 522 echo $renderer->footer();