Merge branch 'wip-MDL-42833-master' of git://github.com/marinaglancy/moodle
[moodle.git] / 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/>.
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  */
25 require_once('../config.php');
26 require_once($CFG->dirroot.'/lib/coursecatlib.php');
27 require_once($CFG->dirroot.'/course/lib.php');
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.
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 $modulelist = optional_param('modulelist', '', PARAM_PLUGIN); // Find courses containing the given modules.
42 if (!in_array($viewmode, array('default', 'combined', 'courses', 'categories'))) {
43     $viewmode = 'default';
44 }
46 $issearching = ($search !== '' || $blocklist !== 0 || $modulelist !== '');
47 if ($issearching) {
48     $viewmode = 'courses';
49 }
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', $course->id);
62 } else if ($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);
69 } else {
70     $course = null;
71     $courseid = null;
72     $category = null;
73     $categoryid = null;
74     if ($viewmode === 'default') {
75         $viewmode = 'categories';
76     }
77     $context = $systemcontext;
78 }
80 // Check if there is a selected category param, and if there is apply it.
81 if ($course === null && $selectedcategoryid !== null && $selectedcategoryid !== $categoryid) {
82     $url->param('categoryid', $selectedcategoryid);
83 }
85 if ($page !== 0) {
86     $url->param('page', $page);
87 }
88 if ($viewmode !== 'default') {
89     $url->param('view', $viewmode);
90 }
91 if ($search !== '') {
92     $url->param('search', $search);
93 }
94 if ($blocklist !== 0) {
95     $url->param('blocklist', $search);
96 }
97 if ($modulelist !== '') {
98     $url->param('modulelist', $search);
99 }
101 $strmanagement = new lang_string('coursecatmanagement');
102 $pageheading = format_string($SITE->fullname, true, array('context' => $systemcontext));
104 $PAGE->set_context($context);
105 $PAGE->set_url($url);
106 $PAGE->set_pagelayout('admin');
107 $PAGE->set_title($strmanagement);
108 $PAGE->set_heading($pageheading);
110 // This is a system level page that operates on other contexts.
111 require_login();
113 if (!coursecat::has_capability_on_any(array('moodle/category:manage', 'moodle/course:create'))) {
114     // The user isn't able to manage any categories. Lets redirect them to the relevant course/index.php page.
115     $url = new moodle_url('/course/index.php');
116     if ($categoryid) {
117         $url->param('categoryid', $categoryid);
118     }
119     redirect($url);
122 // If the user poses any of these capabilities then they will be able to see the admin
123 // tree and the management link within it.
124 // This is the most accurate form of navigation.
125 $capabilities = array(
126     'moodle/site:config',
127     'moodle/backup:backupcourse',
128     'moodle/category:manage',
129     'moodle/course:create',
130     'moodle/site:approvecourse'
131 );
132 if ($category && !has_any_capability($capabilities, $systemcontext)) {
133     // If the user doesn't poses any of these system capabilities then we're going to mark the manage link in the settings block
134     // as active, tell the page to ignore the active path and just build what the user would expect.
135     // This will at least give the page some relevant navigation.
136     navigation_node::override_active_url(new moodle_url('/course/management.php', array('categoryid' => $category->id)));
137     $PAGE->set_category_by_id($category->id);
138     $PAGE->navbar->ignore_active(true);
139     $PAGE->navbar->add(get_string('coursemgmt', 'admin'), $PAGE->url->out_omit_querystring());
140 } else {
141     // If user has system capabilities, make sure the "Manage courses and categories" item in Administration block is active.
142     navigation_node::require_admin_tree();
143     navigation_node::override_active_url(new moodle_url('/course/management.php'));
145 if (!$issearching && $category !== null) {
146     $parents = coursecat::get_many($category->get_parents());
147     $parents[] = $category;
148     foreach ($parents as $parent) {
149         $PAGE->navbar->add(
150             $parent->get_formatted_name(),
151             new moodle_url('/course/management.php', array('categoryid' => $parent->id))
152         );
153     }
154     if ($course instanceof course_in_list) {
155         // Use the list name so that it matches whats being displayed below.
156         $PAGE->navbar->add($course->get_formatted_name());
157     }
160 $notificationspass = array();
161 $notificationsfail = array();
163 if ($action !== false && confirm_sesskey()) {
164     // Actions:
165     // - resortcategories : Resort the courses in the given category.
166     // - resortcourses : Resort courses
167     // - showcourse : make a course visible.
168     // - hidecourse : make a course hidden.
169     // - movecourseup : move the selected course up one.
170     // - movecoursedown : move the selected course down.
171     // - showcategory : make a category visible.
172     // - hidecategory : make a category hidden.
173     // - movecategoryup : move category up.
174     // - movecategorydown : move category down.
175     // - deletecategory : delete the category either in full, or moving contents.
176     // - bulkaction : performs bulk actions:
177     //    - bulkmovecourses.
178     //    - bulkmovecategories.
179     //    - bulkresortcategories.
180     $redirectback = false;
181     $redirectmessage = false;
182     switch ($action) {
183         case 'resortcategories' :
184             $sort = required_param('resort', PARAM_ALPHA);
185             $cattosort = coursecat::get((int)optional_param('categoryid', 0, PARAM_INT));
186             $redirectback = \core_course\management\helper::action_category_resort_subcategories($cattosort, $sort);
187             break;
188         case 'resortcourses' :
189             // They must have specified a category.
190             required_param('categoryid', PARAM_INT);
191             $sort = required_param('resort', PARAM_ALPHA);
192             \core_course\management\helper::action_category_resort_courses($category, $sort);
193             break;
194         case 'showcourse' :
195             $redirectback = \core_course\management\helper::action_course_show($course);
196             break;
197         case 'hidecourse' :
198             $redirectback = \core_course\management\helper::action_course_hide($course);
199             break;
200         case 'movecourseup' :
201             // They must have specified a category and a course.
202             required_param('categoryid', PARAM_INT);
203             required_param('courseid', PARAM_INT);
204             $redirectback = \core_course\management\helper::action_course_change_sortorder_up_one($course, $category);
205             break;
206         case 'movecoursedown' :
207             // They must have specified a category and a course.
208             required_param('categoryid', PARAM_INT);
209             required_param('courseid', PARAM_INT);
210             $redirectback = \core_course\management\helper::action_course_change_sortorder_down_one($course, $category);
211             break;
212         case 'showcategory' :
213             // They must have specified a category.
214             required_param('categoryid', PARAM_INT);
215             $redirectback = \core_course\management\helper::action_category_show($category);
216             break;
217         case 'hidecategory' :
218             // They must have specified a category.
219             required_param('categoryid', PARAM_INT);
220             $redirectback = \core_course\management\helper::action_category_hide($category);
221             break;
222         case 'movecategoryup' :
223             // They must have specified a category.
224             required_param('categoryid', PARAM_INT);
225             $redirectback = \core_course\management\helper::action_category_change_sortorder_up_one($category);
226             break;
227         case 'movecategorydown' :
228             // They must have specified a category.
229             required_param('categoryid', PARAM_INT);
230             $redirectback = \core_course\management\helper::action_category_change_sortorder_down_one($category);
231             break;
232         case 'deletecategory':
233             // They must have specified a category.
234             required_param('categoryid', PARAM_INT);
235             if (!$category->can_delete()) {
236                 throw new moodle_exception('permissiondenied', 'error', '', null, 'coursecat::can_resort');
237             }
238             require_once($CFG->dirroot.'/course/delete_category_form.php');
239             $mform = new core_course_deletecategory_form(null, $category);
240             if ($mform->is_cancelled()) {
241                 redirect($PAGE->url);
242             }
243             // Start output.
244             /* @var core_course_management_renderer|core_renderer $renderer */
245             $renderer = $PAGE->get_renderer('core_course', 'management');
246             echo $renderer->header();
247             echo $renderer->heading(get_string('deletecategory', 'moodle', $category->get_formatted_name()));
249             if ($data = $mform->get_data()) {
250                 // The form has been submit handle it.
251                 if ($data->fulldelete == 1 && $category->can_delete_full()) {
252                     $continueurl = new moodle_url('/course/management.php');
253                     if ($category->parent != '0') {
254                         $continueurl->param('categoryid', $category->parent);
255                     }
256                     $notification = get_string('coursecategorydeleted', '', $category->get_formatted_name());
257                     $deletedcourses = $category->delete_full(true);
258                     foreach ($deletedcourses as $course) {
259                         echo $renderer->notification(get_string('coursedeleted', '', $course->shortname), 'notifysuccess');
260                     }
261                     echo $renderer->notification($notification, 'notifysuccess');
262                     echo $renderer->continue_button($continueurl);
263                 } else if ($data->fulldelete == 0 && $category->can_move_content_to($data->newparent)) {
264                     $continueurl = new moodle_url('/course/management.php', array('categoryid' => $data->newparent));
265                     $category->delete_move($data->newparent, true);
266                     echo $renderer->continue_button($continueurl);
267                 } else {
268                     // Some error in parameters (user is cheating?)
269                     $mform->display();
270                 }
271             } else {
272                 // Display the form.
273                 $mform->display();
274             }
275             // Finish output and exit.
276             echo $renderer->footer();
277             exit();
278             break;
279         case 'bulkaction':
280             $bulkmovecourses = optional_param('bulkmovecourses', false, PARAM_BOOL);
281             $bulkmovecategories = optional_param('bulkmovecategories', false, PARAM_BOOL);
282             $bulkresortcategories = optional_param('bulksort', false, PARAM_BOOL);
284             if ($bulkmovecourses) {
285                 // Move courses out of the current category and into a new category.
286                 // They must have specified a category.
287                 required_param('categoryid', PARAM_INT);
288                 $movetoid = required_param('movecoursesto', PARAM_INT);
289                 $courseids = optional_param_array('bc', false, PARAM_INT);
290                 if ($courseids === false) {
291                     break;
292                 }
293                 $moveto = coursecat::get($movetoid);
294                 try {
295                     // If this fails we want to catch the exception and report it.
296                     $redirectback = \core_course\management\helper::action_category_move_courses_into($category, $moveto,
297                         $courseids);
298                     if ($redirectback) {
299                         $a = new stdClass;
300                         $a->category = $moveto->get_formatted_name();
301                         $a->courses = count($courseids);
302                         $redirectmessage = get_string('bulkmovecoursessuccess', 'moodle', $a);
303                     }
304                 } catch (moodle_exception $ex) {
305                     $redirectback = false;
306                     $notificationsfail[] = $ex->getMessage();
307                 }
308             } else if ($bulkmovecategories) {
309                 $categoryids = optional_param_array('bcat', array(), PARAM_INT);
310                 $movetocatid = required_param('movecategoriesto', PARAM_INT);
311                 $movetocat = coursecat::get($movetocatid);
312                 $movecount = 0;
313                 foreach ($categoryids as $id) {
314                     $cattomove = coursecat::get($id);
315                     if ($id == $movetocatid) {
316                         $notificationsfail[] = get_string('movecategoryownparent', 'error', $cattomove->get_formatted_name());
317                         continue;
318                     }
319                     if (strpos($movetocat->path, $cattomove->path) === 0) {
320                         $notificationsfail[] = get_string('movecategoryparentconflict', 'error', $cattomove->get_formatted_name());
321                         continue;
322                     }
323                     if ($cattomove->parent != $movetocatid) {
324                         if ($cattomove->can_change_parent($movetocatid)) {
325                             $cattomove->change_parent($movetocatid);
326                             $movecount++;
327                         } else {
328                             $notificationsfail[] = get_string('movecategorynotpossible', 'error', $cattomove->get_formatted_name());
329                         }
330                     }
331                 }
332                 if ($movecount > 1) {
333                     $a = new stdClass;
334                     $a->count = $movecount;
335                     $a->to = $movetocat->get_formatted_name();
336                     $movesuccessstrkey = 'movecategoriessuccess';
337                     if ($movetocatid == 0) {
338                         $movesuccessstrkey = 'movecategoriestotopsuccess';
339                     }
340                     $notificationspass[] = get_string($movesuccessstrkey, 'moodle', $a);
341                 } else if ($movecount === 1) {
342                     $a = new stdClass;
343                     $a->moved = $cattomove->get_formatted_name();
344                     $a->to = $movetocat->get_formatted_name();
345                     $movesuccessstrkey = 'movecategorysuccess';
346                     if ($movetocatid == 0) {
347                         $movesuccessstrkey = 'movecategorytotopsuccess';
348                     }
349                     $notificationspass[] = get_string($movesuccessstrkey, 'moodle', $a);
350                 }
351             } else if ($bulkresortcategories) {
352                 $for = required_param('selectsortby', PARAM_ALPHA);
353                 $sortcategoriesby = required_param('resortcategoriesby', PARAM_ALPHA);
354                 $sortcoursesby = required_param('resortcoursesby', PARAM_ALPHA);
356                 if ($sortcategoriesby === 'none' && $sortcoursesby === 'none') {
357                     // They're not sorting anything.
358                     break;
359                 }
360                 if (!in_array($sortcategoriesby, array('idnumber', 'name'))) {
361                     $sortcategoriesby = false;
362                 }
363                 if (!in_array($sortcoursesby, array('idnumber', 'fullname', 'shortname'))) {
364                     $sortcoursesby = false;
365                 }
367                 if ($for === 'thiscategory') {
368                     $categoryids = array(
369                         required_param('currentcategoryid', PARAM_INT)
370                     );
371                     $categories = coursecat::get_many($categoryids);
372                 } else if ($for === 'selectedcategories') {
373                     // Bulk resort selected categories.
374                     $categoryids = optional_param_array('bcat', false, PARAM_INT);
375                     $sort = required_param('resortcategoriesby', PARAM_ALPHA);
376                     if ($categoryids === false) {
377                         break;
378                     }
379                     $categories = coursecat::get_many($categoryids);
380                 } else if ($for === 'allcategories') {
381                     if ($sortcategoriesby && coursecat::get(0)->can_resort_subcategories()) {
382                         \core_course\management\helper::action_category_resort_subcategories(coursecat::get(0), $sortcategoriesby);
383                     }
384                     $categorieslist = coursecat::make_categories_list('moodle/category:manage');
385                     $categoryids = array_keys($categorieslist);
386                     $categories = coursecat::get_many($categoryids);
387                     unset($categorieslist);
388                 } else {
389                     break;
390                 }
391                 foreach ($categories as $cat) {
392                     if ($sortcategoriesby && $cat->can_resort_subcategories()) {
393                         // Don't clean up here, we'll do it once we're all done.
394                         \core_course\management\helper::action_category_resort_subcategories($cat, $sortcategoriesby, false);
395                     }
396                     if ($sortcoursesby && $cat->can_resort_courses()) {
397                         \core_course\management\helper::action_category_resort_courses($cat, $sortcoursesby, false);
398                     }
399                 }
400                 coursecat::resort_categories_cleanup($sortcoursesby !== false);
401                 if ($category === null && count($categoryids) === 1) {
402                     // They're bulk sorting just a single category and they've not selected a category.
403                     // Lets for convenience sake auto-select the category that has been resorted for them.
404                     redirect(new moodle_url($PAGE->url, array('categoryid' => reset($categoryids))));
405                 }
406             }
407     }
408     if ($redirectback) {
409         if ($redirectmessage) {
410             redirect($PAGE->url, $redirectmessage, 5);
411         } else {
412             redirect($PAGE->url);
413         }
414     }
417 if (!is_null($perpage)) {
418     set_user_preference('coursecat_management_perpage', $perpage);
419 } else {
420     $perpage = get_user_preferences('coursecat_management_perpage', $CFG->coursesperpage);
422 if ((int)$perpage != $perpage || $perpage < 2) {
423     $perpage = $CFG->coursesperpage;
426 $categorysize = 4;
427 $coursesize = 4;
428 $detailssize = 4;
429 if ($viewmode === 'default' || $viewmode === 'combined') {
430     if (isset($courseid)) {
431         $class = 'columns-3';
432     } else {
433         $categorysize = 5;
434         $coursesize = 7;
435         $class = 'columns-2';
436     }
437 } else if ($viewmode === 'categories') {
438     $categorysize = 12;
439     $class = 'columns-1';
440 } else if ($viewmode === 'courses') {
441     if (isset($courseid)) {
442         $coursesize = 6;
443         $detailssize = 6;
444         $class = 'columns-2';
445     } else {
446         $coursesize = 12;
447         $class = 'columns-1';
448     }
450 if ($viewmode === 'default' || $viewmode === 'combined') {
451     $class .= ' viewmode-cobmined';
452 } else {
453     $class .= ' viewmode-'.$viewmode;
455 if (($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'courses') && !empty($courseid)) {
456     $class .= ' course-selected';
459 /* @var core_course_management_renderer|core_renderer $renderer */
460 $renderer = $PAGE->get_renderer('core_course', 'management');
461 $renderer->enhance_management_interface();
463 $displaycategorylisting = ($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'categories');
464 $displaycourselisting = ($viewmode === 'default' || $viewmode === 'combined' || $viewmode === 'courses');
465 $displaycoursedetail = (isset($courseid));
467 echo $renderer->header();
469 if (!$issearching) {
470     echo $renderer->management_heading($strmanagement, $viewmode, $categoryid);
471 } else {
472     echo $renderer->management_heading(new lang_string('searchresults'));
475 if (count($notificationspass) > 0) {
476     echo $renderer->notification(join('<br />', $notificationspass), 'notifysuccess');
478 if (count($notificationsfail) > 0) {
479     echo $renderer->notification(join('<br />', $notificationsfail));
482 // Start the management form.
483 echo $renderer->management_form_start();
485 echo $renderer->accessible_skipto_links($displaycategorylisting, $displaycourselisting, $displaycoursedetail);
487 echo $renderer->grid_start('course-category-listings', $class);
489 if ($displaycategorylisting) {
490     echo $renderer->grid_column_start($categorysize, 'category-listing');
491     echo $renderer->category_listing($category);
492     echo $renderer->grid_column_end();
494 if ($displaycourselisting) {
495     echo $renderer->grid_column_start($coursesize, 'course-listing');
496     if (!$issearching) {
497         echo $renderer->course_listing($category, $course, $page, $perpage);
498     } else {
499         list($courses, $coursescount, $coursestotal) =
500             \core_course\management\helper::search_courses($search, $blocklist, $modulelist, $page, $perpage);
501         echo $renderer->search_listing($courses, $coursestotal, $course, $page, $perpage);
502     }
503     echo $renderer->grid_column_end();
504     if ($displaycoursedetail) {
505         echo $renderer->grid_column_start($detailssize, 'course-detail');
506         echo $renderer->course_detail($course);
507         echo $renderer->grid_column_end();
508     }
510 echo $renderer->grid_end();
512 // End of the management form.
513 echo $renderer->management_form_end();
514 echo $renderer->footer();