course/manage.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  * Allows the admin to create, delete and rename course categories rearrange courses
  19  *
  20  * @package   core
  21  * @copyright 2013 Marina Glancy
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once("../config.php");
  26 require_once($CFG->dirroot.'/course/lib.php');
  27 require_once($CFG->libdir.'/coursecatlib.php');
  28
  29 // Category id.
  30 $id = optional_param('categoryid', 0, PARAM_INT);
  31 // Which page to show.
  32 $page = optional_param('page', 0, PARAM_INT);
  33 // How many per page.
  34 $perpage = optional_param('perpage', $CFG->coursesperpage, PARAM_INT);
  35
  36 $search    = optional_param('search', '', PARAM_RAW);  // search words
  37 $blocklist = optional_param('blocklist', 0, PARAM_INT);
  38 $modulelist= optional_param('modulelist', '', PARAM_PLUGIN);
  39 if (!$id && !empty($search)) {
  40     $searchcriteria = array('search' => $search);
  41 } else if (!$id && !empty($blocklist)) {
  42     $searchcriteria = array('blocklist' => $blocklist);
  43 } else if (!$id && !empty($modulelist)) {
  44     $searchcriteria = array('modulelist' => $modulelist);
  45 } else {
  46     $searchcriteria = array();
  47 }
  48
  49 // Actions to manage courses.
  50 $hide = optional_param('hide', 0, PARAM_INT);
  51 $show = optional_param('show', 0, PARAM_INT);
  52 $moveup = optional_param('moveup', 0, PARAM_INT);
  53 $movedown = optional_param('movedown', 0, PARAM_INT);
  54 $moveto = optional_param('moveto', 0, PARAM_INT);
  55 $resort = optional_param('resort', 0, PARAM_BOOL);
  56
  57 // Actions to manage categories.
  58 $deletecat = optional_param('deletecat', 0, PARAM_INT);
  59 $hidecat = optional_param('hidecat', 0, PARAM_INT);
  60 $showcat = optional_param('showcat', 0, PARAM_INT);
  61 $movecat = optional_param('movecat', 0, PARAM_INT);
  62 $movetocat = optional_param('movetocat', -1, PARAM_INT);
  63 $moveupcat = optional_param('moveupcat', 0, PARAM_INT);
  64 $movedowncat = optional_param('movedowncat', 0, PARAM_INT);
  65
  66 require_login();
  67
  68 // Retrieve coursecat object
  69 // This will also make sure that category is accessible and create default category if missing
  70 $coursecat = coursecat::get($id);
  71
  72 if ($id) {
  73     $PAGE->set_category_by_id($id);
  74     $PAGE->set_url(new moodle_url('/course/manage.php', array('categoryid' => $id)));
  75     // This is sure to be the category context.
  76     $context = $PAGE->context;
  77     if (!can_edit_in_category($coursecat->id)) {
  78         redirect(new moodle_url('/course/index.php', array('categoryid' => $coursecat->id)));
  79     }
  80 } else {
  81     $context = context_system::instance();
  82     $PAGE->set_context($context);
  83     $PAGE->set_url(new moodle_url('/course/manage.php'));
  84     if (!can_edit_in_category()) {
  85         redirect(new moodle_url('/course/index.php'));
  86     }
  87 }
  88
  89 $canmanage = has_capability('moodle/category:manage', $context);
  90
  91 // Process any category actions.
  92 if (!empty($deletecat) and confirm_sesskey()) {
  93     // Delete a category.
  94     $cattodelete = coursecat::get($deletecat);
  95     $context = context_coursecat::instance($deletecat);
  96     require_capability('moodle/category:manage', $context);
  97     require_capability('moodle/category:manage', get_category_or_system_context($cattodelete->parent));
  98
  99     $heading = get_string('deletecategory', 'moodle', format_string($cattodelete->name, true, array('context' => $context)));
 100
 101     require_once($CFG->dirroot.'/course/delete_category_form.php');
 102     $mform = new delete_category_form(null, $cattodelete);
 103     if ($mform->is_cancelled()) {
 104         redirect(new moodle_url('/course/manage.php'));
 105     }
 106
 107     // Start output.
 108     echo $OUTPUT->header();
 109     echo $OUTPUT->heading($heading);
 110
 111     if ($data = $mform->get_data()) {
 112         // The form has been submit handle it.
 113         if ($data->fulldelete == 1 && $cattodelete->can_delete_full()) {
 114             $cattodeletename = $cattodelete->get_formatted_name();
 115             $deletedcourses = $cattodelete->delete_full(true);
 116             foreach ($deletedcourses as $course) {
 117                 echo $OUTPUT->notification(get_string('coursedeleted', '', $course->shortname), 'notifysuccess');
 118             }
 119             echo $OUTPUT->notification(get_string('coursecategorydeleted', '', $cattodeletename), 'notifysuccess');
 120             echo $OUTPUT->continue_button(new moodle_url('/course/manage.php'));
 121
 122         } else if ($data->fulldelete == 0 && $cattodelete->can_move_content_to($data->newparent)) {
 123             $cattodelete->delete_move($data->newparent, true);
 124             echo $OUTPUT->continue_button(new moodle_url('/course/manage.php'));
 125         } else {
 126             // Some error in parameters (user is cheating?)
 127             $mform->display();
 128         }
 129     } else {
 130         // Display the form.
 131         $mform->display();
 132     }
 133     // Finish output and exit.
 134     echo $OUTPUT->footer();
 135     exit();
 136 }
 137
 138 if (!empty($movecat) and ($movetocat >= 0) and confirm_sesskey()) {
 139     // Move a category to a new parent if required.
 140     $cattomove = coursecat::get($movecat);
 141     if ($cattomove->parent != $movetocat) {
 142         if ($cattomove->can_change_parent($movetocat)) {
 143             $cattomove->change_parent($movetocat);
 144         } else {
 145             print_error('cannotmovecategory');
 146         }
 147     }
 148 }
 149
 150 // Hide or show a category.
 151 if ($hidecat and confirm_sesskey()) {
 152     $cattohide = coursecat::get($hidecat);
 153     require_capability('moodle/category:manage', get_category_or_system_context($cattohide->parent));
 154     $cattohide->hide();
 155 } else if ($showcat and confirm_sesskey()) {
 156     $cattoshow = coursecat::get($showcat);
 157     require_capability('moodle/category:manage', get_category_or_system_context($cattoshow->parent));
 158     $cattoshow->show();
 159 }
 160
 161 if ((!empty($moveupcat) or !empty($movedowncat)) and confirm_sesskey()) {
 162     // Move a category up or down.
 163     fix_course_sortorder();
 164     $swapcategory = null;
 165
 166     if (!empty($moveupcat)) {
 167         require_capability('moodle/category:manage', context_coursecat::instance($moveupcat));
 168         if ($movecategory = $DB->get_record('course_categories', array('id' => $moveupcat))) {
 169             $params = array($movecategory->sortorder, $movecategory->parent);
 170             if ($swapcategory = $DB->get_records_select('course_categories', "sortorder<? AND parent=?", $params, 'sortorder DESC', '*', 0, 1)) {
 171                 $swapcategory = reset($swapcategory);
 172             }
 173         }
 174     } else {
 175         require_capability('moodle/category:manage', context_coursecat::instance($movedowncat));
 176         if ($movecategory = $DB->get_record('course_categories', array('id' => $movedowncat))) {
 177             $params = array($movecategory->sortorder, $movecategory->parent);
 178             if ($swapcategory = $DB->get_records_select('course_categories', "sortorder>? AND parent=?", $params, 'sortorder ASC', '*', 0, 1)) {
 179                 $swapcategory = reset($swapcategory);
 180             }
 181         }
 182     }
 183     if ($swapcategory and $movecategory) {
 184         $DB->set_field('course_categories', 'sortorder', $swapcategory->sortorder, array('id' => $movecategory->id));
 185         $DB->set_field('course_categories', 'sortorder', $movecategory->sortorder, array('id' => $swapcategory->id));
 186         cache_helper::purge_by_event('changesincoursecat');
 187         add_to_log(SITEID, "category", "move", "editcategory.php?id=$movecategory->id", $movecategory->id);
 188     }
 189
 190     // Finally reorder courses.
 191     fix_course_sortorder();
 192 }
 193
 194 if ($coursecat->id && $canmanage && $resort && confirm_sesskey()) {
 195     // Resort the category.
 196     if ($courses = get_courses($coursecat->id, '', 'c.id,c.fullname,c.sortorder')) {
 197         core_collator::asort_objects_by_property($courses, 'fullname', core_collator::SORT_NATURAL);
 198         $i = 1;
 199         foreach ($courses as $course) {
 200             $DB->set_field('course', 'sortorder', $coursecat->sortorder + $i, array('id' => $course->id));
 201             $i++;
 202         }
 203         // This should not be needed but we do it just to be safe.
 204         fix_course_sortorder();
 205         cache_helper::purge_by_event('changesincourse');
 206     }
 207 }
 208
 209 if (!empty($moveto) && ($data = data_submitted()) && confirm_sesskey()) {
 210     // Move a specified course to a new category.
 211     // User must have category update in both cats to perform this.
 212     require_capability('moodle/category:manage', $context);
 213     require_capability('moodle/category:manage', context_coursecat::instance($moveto));
 214
 215     if (!$destcategory = $DB->get_record('course_categories', array('id' => $data->moveto))) {
 216         print_error('cannotfindcategory', '', '', $data->moveto);
 217     }
 218
 219     $courses = array();
 220     foreach ($data as $key => $value) {
 221         if (preg_match('/^c\d+$/', $key)) {
 222             $courseid = substr($key, 1);
 223             array_push($courses, $courseid);
 224             // Check this course's category.
 225             if ($movingcourse = $DB->get_record('course', array('id' => $courseid))) {
 226                 if ($id && $movingcourse->category != $id ) {
 227                     print_error('coursedoesnotbelongtocategory');
 228                 }
 229             } else {
 230                 print_error('cannotfindcourse');
 231             }
 232         }
 233     }
 234     move_courses($courses, $data->moveto);
 235 }
 236
 237 if ((!empty($hide) or !empty($show)) && confirm_sesskey()) {
 238     // Hide or show a course.
 239     if (!empty($hide)) {
 240         $course = $DB->get_record('course', array('id' => $hide), '*', MUST_EXIST);
 241         $visible = 0;
 242     } else {
 243         $course = $DB->get_record('course', array('id' => $show), '*', MUST_EXIST);
 244         $visible = 1;
 245     }
 246     $coursecontext = context_course::instance($course->id);
 247     require_capability('moodle/course:visibility', $coursecontext);
 248     // Set the visibility of the course. we set the old flag when user manually changes visibility of course.
 249     $params = array('id' => $course->id, 'visible' => $visible, 'visibleold' => $visible, 'timemodified' => time());
 250     $DB->update_record('course', $params);
 251     cache_helper::purge_by_event('changesincourse');
 252
 253     // Update the course object we pass to the event class.
 254     $course->visible = $params['visible'];
 255     $course->visibleold = $params['visibleold'];
 256     $course->timemodified = $params['timemodified'];
 257
 258     // Trigger a course updated event.
 259     $event = \core\event\course_updated::create(array(
 260         'objectid' => $course->id,
 261         'context' => $coursecontext,
 262         'other' => array('shortname' => $course->shortname,
 263                          'fullname' => $course->fullname)
 264     ));
 265     $event->add_record_snapshot('course', $course);
 266     $event->set_legacy_logdata(array($course->id, 'course', ($visible ? 'show' : 'hide'), 'edit.php?id=' . $course->id, $course->id));
 267     $event->trigger();
 268 }
 269
 270 if ((!empty($moveup) or !empty($movedown)) && confirm_sesskey()) {
 271     // Move a course up or down.
 272     require_capability('moodle/category:manage', $context);
 273
 274     // Ensure the course order has continuous ordering.
 275     fix_course_sortorder();
 276     $swapcourse = null;
 277
 278     if (!empty($moveup)) {
 279         if ($movecourse = $DB->get_record('course', array('id' => $moveup))) {
 280             $swapcourse = $DB->get_record('course', array('sortorder' => $movecourse->sortorder - 1));
 281         }
 282     } else {
 283         if ($movecourse = $DB->get_record('course', array('id' => $movedown))) {
 284             $swapcourse = $DB->get_record('course', array('sortorder' => $movecourse->sortorder + 1));
 285         }
 286     }
 287     if ($swapcourse and $movecourse) {
 288         // Check course's category.
 289         if ($movecourse->category != $id) {
 290             print_error('coursedoesnotbelongtocategory');
 291         }
 292         $DB->set_field('course', 'sortorder', $swapcourse->sortorder, array('id' => $movecourse->id));
 293         $DB->set_field('course', 'sortorder', $movecourse->sortorder, array('id' => $swapcourse->id));
 294         cache_helper::purge_by_event('changesincourse');
 295
 296         // Update $movecourse's sortorder.
 297         $movecourse->sortorder = $swapcourse->sortorder;
 298
 299         // Trigger a course updated event.
 300         $event = \core\event\course_updated::create(array(
 301             'objectid' => $movecourse->id,
 302             'context' => context_course::instance($movecourse->id),
 303             'other' => array('shortname' => $movecourse->shortname,
 304                              'fullname' => $movecourse->fullname)
 305         ));
 306         $event->add_record_snapshot('course', $movecourse);
 307         $event->set_legacy_logdata(array($movecourse->id, 'course', 'move', 'edit.php?id=' . $movecourse->id, $movecourse->id));
 308         $event->trigger();
 309     }
 310 }
 311
 312 // Prepare the standard URL params for this page. We'll need them later.
 313 $urlparams = array('categoryid' => $id);
 314 if ($page) {
 315     $urlparams['page'] = $page;
 316 }
 317 if ($perpage) {
 318     $urlparams['perpage'] = $perpage;
 319 }
 320 $urlparams += $searchcriteria;
 321
 322 $PAGE->set_pagelayout('coursecategory');
 323 $courserenderer = $PAGE->get_renderer('core', 'course');
 324
 325 if (can_edit_in_category()) {
 326     // Integrate into the admin tree only if the user can edit categories at the top level,
 327     // otherwise the admin block does not appear to this user, and you get an error.
 328     require_once($CFG->libdir . '/adminlib.php');
 329     if ($id) {
 330         navigation_node::override_active_url(new moodle_url('/course/index.php', array('categoryid' => $id)));
 331     }
 332     admin_externalpage_setup('coursemgmt', '', $urlparams, $CFG->wwwroot . '/course/manage.php');
 333     $settingsnode = $PAGE->settingsnav->find_active_node();
 334     if ($id && $settingsnode) {
 335         $settingsnode->make_inactive();
 336         $settingsnode->force_open();
 337         $PAGE->navbar->add($settingsnode->text, $settingsnode->action);
 338     }
 339 } else {
 340     $site = get_site();
 341     $PAGE->set_title("$site->shortname: $coursecat->name");
 342     $PAGE->set_heading($site->fullname);
 343     $PAGE->set_button($courserenderer->course_search_form('', 'navbar'));
 344 }
 345
 346 // Start output.
 347 echo $OUTPUT->header();
 348
 349 if (!empty($searchcriteria)) {
 350     echo $OUTPUT->heading(new lang_string('searchresults'));
 351 } else if (!$coursecat->id) {
 352     // Print out the categories with all the knobs.
 353     $table = new html_table;
 354     $table->id = 'coursecategories';
 355     $table->attributes['class'] = 'admintable generaltable editcourse';
 356     $table->head = array(
 357         get_string('categories'),
 358         get_string('courses'),
 359         get_string('edit'),
 360         get_string('movecategoryto'),
 361     );
 362     $table->colclasses = array(
 363         'leftalign name',
 364         'centeralign count',
 365         'centeralign icons',
 366         'leftalign actions'
 367     );
 368     $table->data = array();
 369
 370     print_category_edit($table, $coursecat);
 371
 372     echo html_writer::table($table);
 373 } else {
 374     // Print the category selector.
 375     $displaylist = coursecat::make_categories_list();
 376     $select = new single_select(new moodle_url('/course/manage.php'), 'categoryid', $displaylist, $coursecat->id, null, 'switchcategory');
 377     $select->set_label(get_string('categories').':');
 378
 379     echo html_writer::start_tag('div', array('class' => 'categorypicker'));
 380     echo $OUTPUT->render($select);
 381     echo html_writer::end_tag('div');
 382 }
 383
 384 if ($canmanage && empty($searchcriteria)) {
 385     echo $OUTPUT->container_start('buttons');
 386     // Print button to update this category.
 387     if ($id) {
 388         $url = new moodle_url('/course/editcategory.php', array('id' => $id));
 389         echo $OUTPUT->single_button($url, get_string('editcategorythis'), 'get');
 390     }
 391
 392     // Print button for creating new categories.
 393     $url = new moodle_url('/course/editcategory.php', array('parent' => $id));
 394     if ($id) {
 395         $title = get_string('addsubcategory');
 396     } else {
 397         $title = get_string('addnewcategory');
 398     }
 399     echo $OUTPUT->single_button($url, $title, 'get');
 400     echo $OUTPUT->container_end();
 401 }
 402
 403 if (!empty($searchcriteria)) {
 404     $courses = coursecat::get(0)->search_courses($searchcriteria, array('recursive' => true,
 405         'offset' => $page * $perpage, 'limit' => $perpage, 'sort' => array('fullname' => 1)));
 406     $numcourses = count($courses);
 407     $totalcount = coursecat::get(0)->search_courses_count($searchcriteria, array('recursive' => true));
 408 } else if ($coursecat->id) {
 409     // Print out all the sub-categories (plain mode).
 410     // In order to view hidden subcategories the user must have the viewhiddencategories.
 411     // capability in the current category..
 412     if (has_capability('moodle/category:viewhiddencategories', $context)) {
 413         $categorywhere = '';
 414     } else {
 415         $categorywhere = 'AND cc.visible = 1';
 416     }
 417     // We're going to preload the context for the subcategory as we know that we
 418     // need it later on for formatting.
 419     $ctxselect = context_helper::get_preload_record_columns_sql('ctx');
 420     $sql = "SELECT cc.*, $ctxselect
 421               FROM {course_categories} cc
 422               JOIN {context} ctx ON cc.id = ctx.instanceid
 423              WHERE cc.parent = :parentid AND
 424                    ctx.contextlevel = :contextlevel
 425                    $categorywhere
 426           ORDER BY cc.sortorder ASC";
 427     $subcategories = $DB->get_recordset_sql($sql, array('parentid' => $coursecat->id, 'contextlevel' => CONTEXT_COURSECAT));
 428     // Prepare a table to display the sub categories.
 429     $table = new html_table;
 430     $table->attributes = array(
 431         'border' => '0',
 432         'cellspacing' => '2',
 433         'cellpadding' => '4',
 434         'class' => 'generalbox boxaligncenter category_subcategories'
 435     );
 436     $table->head = array(new lang_string('subcategories'));
 437     $table->data = array();
 438     $baseurl = new moodle_url('/course/manage.php');
 439     foreach ($subcategories as $subcategory) {
 440         // Preload the context we will need it to format the category name shortly.
 441         context_helper::preload_from_record($subcategory);
 442         $context = context_coursecat::instance($subcategory->id);
 443         // Prepare the things we need to create a link to the subcategory.
 444         $attributes = $subcategory->visible ? array() : array('class' => 'dimmed');
 445         $text = format_string($subcategory->name, true, array('context' => $context));
 446         // Add the subcategory to the table.
 447         $baseurl->param('categoryid', $subcategory->id);
 448         $table->data[] = array(html_writer::link($baseurl, $text, $attributes));
 449     }
 450
 451     $subcategorieswereshown = (count($table->data) > 0);
 452     if ($subcategorieswereshown) {
 453         echo html_writer::table($table);
 454     }
 455
 456     $courses = get_courses_page($coursecat->id, 'c.sortorder ASC',
 457             'c.id,c.sortorder,c.shortname,c.fullname,c.summary,c.visible',
 458             $totalcount, $page*$perpage, $perpage);
 459     $numcourses = count($courses);
 460 } else {
 461     $subcategorieswereshown = true;
 462     $courses = array();
 463     $numcourses = $totalcount = 0;
 464 }
 465
 466 if (!$courses) {
 467     // There is no course to display.
 468     if (empty($subcategorieswereshown)) {
 469         echo $OUTPUT->heading(get_string("nocoursesyet"));
 470     }
 471 } else {
 472     // Display a basic list of courses with paging/editing options.
 473     $table = new html_table;
 474     $table->attributes = array('border' => 0, 'cellspacing' => 0, 'cellpadding' => '4', 'class' => 'generalbox boxaligncenter');
 475     $table->head = array(
 476         get_string('courses'),
 477         get_string('edit'),
 478         get_string('select')
 479     );
 480     $table->colclasses = array(null, null, 'mdl-align');
 481     if (!empty($searchcriteria)) {
 482         // add 'Category' column
 483         array_splice($table->head, 1, 0, array(get_string('category')));
 484         array_splice($table->colclasses, 1, 0, array(null));
 485     }
 486     $table->data = array();
 487
 488     $count = 0;
 489     $abletomovecourses = false;
 490
 491     // Checking if we are at the first or at the last page, to allow courses to
 492     // be moved up and down beyond the paging border.
 493     if ($totalcount > $perpage) {
 494         $atfirstpage = ($page == 0);
 495         if ($perpage > 0) {
 496             $atlastpage = (($page + 1) == ceil($totalcount / $perpage));
 497         } else {
 498             $atlastpage = true;
 499         }
 500     } else {
 501         $atfirstpage = true;
 502         $atlastpage = true;
 503     }
 504
 505     $baseurl = new moodle_url('/course/manage.php', $urlparams + array('sesskey' => sesskey()));
 506     foreach ($courses as $acourse) {
 507         $coursecontext = context_course::instance($acourse->id);
 508
 509         $count++;
 510         $up = ($count > 1 || !$atfirstpage);
 511         $down = ($count < $numcourses || !$atlastpage);
 512
 513         $courseurl = new moodle_url('/course/view.php', array('id' => $acourse->id));
 514         $attributes = array();
 515         $attributes['class'] = $acourse->visible ? '' : 'dimmed';
 516         $coursename = get_course_display_name_for_list($acourse);
 517         $coursename = format_string($coursename, true, array('context' => $coursecontext));
 518         $coursename = html_writer::link($courseurl, $coursename, $attributes);
 519
 520         $icons = array();
 521         // Update course icon.
 522         if (has_capability('moodle/course:update', $coursecontext)) {
 523             $url = new moodle_url('/course/edit.php', array('id' => $acourse->id, 'category' => $id, 'returnto' => 'catmanage'));
 524             $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/edit', get_string('settings')));
 525         }
 526
 527         // Role assignment icon.
 528         if (has_capability('moodle/course:enrolreview', $coursecontext)) {
 529             $url = new moodle_url('/enrol/users.php', array('id' => $acourse->id));
 530             $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/enrolusers', get_string('enrolledusers', 'enrol')));
 531         }
 532
 533         // Delete course icon.
 534         if (can_delete_course($acourse->id)) {
 535             $url = new moodle_url('/course/delete.php', array('id' => $acourse->id));
 536             $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/delete', get_string('delete')));
 537         }
 538
 539         // Change visibility.
 540         // Users with no capability to view hidden courses, should not be able to lock themselves out.
 541         if (has_any_capability(array('moodle/course:visibility', 'moodle/course:viewhiddencourses'), $coursecontext)) {
 542             if (!empty($acourse->visible)) {
 543                 $url = new moodle_url($baseurl, array('hide' => $acourse->id));
 544                 $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/hide', get_string('hide')));
 545             } else {
 546                 $url = new moodle_url($baseurl, array('show' => $acourse->id));
 547                 $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/show', get_string('show')));
 548             }
 549         }
 550
 551         // Backup course icon.
 552         if (has_capability('moodle/backup:backupcourse', $coursecontext)) {
 553             $url = new moodle_url('/backup/backup.php', array('id' => $acourse->id));
 554             $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/backup', get_string('backup')));
 555         }
 556
 557         // Restore course icon.
 558         if (has_capability('moodle/restore:restorecourse', $coursecontext)) {
 559             $url = new moodle_url('/backup/restorefile.php', array('contextid' => $coursecontext->id));
 560             $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/restore', get_string('restore')));
 561         }
 562
 563         if ($canmanage) {
 564             if ($up && empty($searchcriteria)) {
 565                 $url = new moodle_url($baseurl, array('moveup' => $acourse->id));
 566                 $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/up', get_string('moveup')));
 567             }
 568             if ($down && empty($searchcriteria)) {
 569                 $url = new moodle_url($baseurl, array('movedown' => $acourse->id));
 570                 $icons[] = $OUTPUT->action_icon($url, new pix_icon('t/down', get_string('movedown')));
 571             }
 572             $abletomovecourses = true;
 573         }
 574
 575         $table->data[] = new html_table_row(array(
 576             new html_table_cell($coursename),
 577             new html_table_cell(join('', $icons)),
 578             new html_table_cell(html_writer::empty_tag('input', array('type' => 'checkbox', 'name' => 'c'.$acourse->id)))
 579         ));
 580
 581         if (!empty($searchcriteria)) {
 582             // add 'Category' column
 583             $category = coursecat::get($acourse->category, IGNORE_MISSING, true);
 584             $cell = new html_table_cell($category->get_formatted_name());
 585             $cell->attributes['class'] = $category->visible ? '' : 'dimmed_text';
 586             array_splice($table->data[count($table->data) - 1]->cells, 1, 0, array($cell));
 587         }
 588     }
 589
 590     if ($abletomovecourses) {
 591         $movetocategories = coursecat::make_categories_list('moodle/category:manage');
 592         $movetocategories[$id] = get_string('moveselectedcoursesto');
 593
 594         $cell = new html_table_cell();
 595         $cell->colspan = 3;
 596         $cell->attributes['class'] = 'mdl-right';
 597         $cell->text = html_writer::label(get_string('moveselectedcoursesto'), 'movetoid', false, array('class' => 'accesshide'));
 598         $cell->text .= html_writer::select($movetocategories, 'moveto', $id, null, array('id' => 'movetoid', 'class' => 'autosubmit'));
 599         $cell->text .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'categoryid', 'value' => $id));
 600         $PAGE->requires->yui_module('moodle-core-formautosubmit',
 601             'M.core.init_formautosubmit',
 602             array(array('selectid' => 'movetoid', 'nothing' => $id))
 603         );
 604         $table->data[] = new html_table_row(array($cell));
 605     }
 606
 607     $actionurl = new moodle_url('/course/manage.php');
 608     $pagingurl = new moodle_url('/course/manage.php', array('categoryid' => $id, 'perpage' => $perpage) + $searchcriteria);
 609
 610     echo $OUTPUT->paging_bar($totalcount, $page, $perpage, $pagingurl);
 611     echo html_writer::start_tag('form', array('id' => 'movecourses', 'action' => $actionurl, 'method' => 'post'));
 612     echo html_writer::start_tag('div');
 613     echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 614     foreach ($searchcriteria as $key => $value) {
 615         echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => $key, 'value' => $value));
 616     }
 617     echo html_writer::table($table);
 618     echo html_writer::end_tag('div');
 619     echo html_writer::end_tag('form');
 620     echo html_writer::empty_tag('br');
 621 }
 622
 623 echo html_writer::start_tag('div', array('class' => 'buttons'));
 624 if ($canmanage and $numcourses > 1 && empty($searchcriteria)) {
 625     // Print button to re-sort courses by name.
 626     $url = new moodle_url('/course/manage.php', array('categoryid' => $id, 'resort' => 'name', 'sesskey' => sesskey()));
 627     echo $OUTPUT->single_button($url, get_string('resortcoursesbyname'), 'get');
 628 }
 629
 630 if (has_capability('moodle/course:create', $context) && empty($searchcriteria)) {
 631     // Print button to create a new course.
 632     $url = new moodle_url('/course/edit.php');
 633     if ($coursecat->id) {
 634         $url->params(array('category' => $coursecat->id, 'returnto' => 'catmanage'));
 635     } else {
 636         $url->params(array('category' => $CFG->defaultrequestcategory, 'returnto' => 'topcatmanage'));
 637     }
 638     echo $OUTPUT->single_button($url, get_string('addnewcourse'), 'get');
 639 }
 640
 641 if (!empty($CFG->enablecourserequests) && $id == $CFG->defaultrequestcategory) {
 642     print_course_request_buttons(context_system::instance());
 643 }
 644 echo html_writer::end_tag('div');
 645
 646 echo $courserenderer->course_search_form();
 647
 648 echo $OUTPUT->footer();
 649
 650 /**
 651  * Recursive function to print all the categories ready for editing.
 652  *
 653  * @param html_table $table The table to add data to.
 654  * @param coursecat $category The category to render
 655  * @param int $depth The depth of the category.
 656  * @param bool $up True if this category can be moved up.
 657  * @param bool $down True if this category can be moved down.
 658  */
 659 function print_category_edit(html_table $table, coursecat $category, $depth = -1, $up = false, $down = false) {
 660     global $OUTPUT;
 661
 662     static $str = null;
 663
 664     if (is_null($str)) {
 665         $str = new stdClass;
 666         $str->edit = new lang_string('edit');
 667         $str->delete = new lang_string('delete');
 668         $str->moveup = new lang_string('moveup');
 669         $str->movedown = new lang_string('movedown');
 670         $str->edit = new lang_string('editthiscategory');
 671         $str->hide = new lang_string('hide');
 672         $str->show = new lang_string('show');
 673         $str->cohorts = new lang_string('cohorts', 'cohort');
 674         $str->spacer = $OUTPUT->spacer().' ';
 675     }
 676
 677     if ($category->id) {
 678
 679         $categorycontext = context_coursecat::instance($category->id);
 680
 681         $attributes = array();
 682         $attributes['class'] = $category->visible ? '' : 'dimmed';
 683         $attributes['title'] = $str->edit;
 684         $categoryurl = new moodle_url('/course/manage.php', array('categoryid' => $category->id, 'sesskey' => sesskey()));
 685         $categoryname = $category->get_formatted_name();
 686         $categorypadding = str_repeat('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;', $depth);
 687         $categoryname = $categorypadding . html_writer::link($categoryurl, $categoryname, $attributes);
 688
 689         $icons = array();
 690         if (has_capability('moodle/category:manage', $categorycontext)) {
 691             // Edit category.
 692             $icons[] = $OUTPUT->action_icon(
 693                 new moodle_url('/course/editcategory.php', array('id' => $category->id)),
 694                 new pix_icon('t/edit', $str->edit, 'moodle', array('class' => 'iconsmall')),
 695                 null, array('title' => $str->edit)
 696             );
 697             // Delete category.
 698             $icons[] = $OUTPUT->action_icon(
 699                 new moodle_url('/course/manage.php', array('deletecat' => $category->id, 'sesskey' => sesskey())),
 700                 new pix_icon('t/delete', $str->delete, 'moodle', array('class' => 'iconsmall')),
 701                 null, array('title' => $str->delete)
 702             );
 703             // Change visibility.
 704             if (!empty($category->visible)) {
 705                 $icons[] = $OUTPUT->action_icon(
 706                     new moodle_url('/course/manage.php', array('hidecat' => $category->id, 'sesskey' => sesskey())),
 707                     new pix_icon('t/hide', $str->hide, 'moodle', array('class' => 'iconsmall')),
 708                     null, array('title' => $str->hide)
 709                 );
 710             } else {
 711                 $icons[] = $OUTPUT->action_icon(
 712                     new moodle_url('/course/manage.php', array('showcat' => $category->id, 'sesskey' => sesskey())),
 713                     new pix_icon('t/show', $str->show, 'moodle', array('class' => 'iconsmall')),
 714                     null, array('title' => $str->show)
 715                 );
 716             }
 717             // Cohorts.
 718             if (has_any_capability(array('moodle/cohort:manage', 'moodle/cohort:view'), $categorycontext)) {
 719                 $icons[] = $OUTPUT->action_icon(
 720                     new moodle_url('/cohort/index.php', array('contextid' => $categorycontext->id)),
 721                     new pix_icon('t/cohort', $str->cohorts, 'moodle', array('class' => 'iconsmall')),
 722                     null, array('title' => $str->cohorts)
 723                 );
 724             }
 725             // Move up/down.
 726             if ($up) {
 727                 $icons[] = $OUTPUT->action_icon(
 728                     new moodle_url('/course/manage.php', array('moveupcat' => $category->id, 'sesskey' => sesskey())),
 729                     new pix_icon('t/up', $str->moveup, 'moodle', array('class' => 'iconsmall')),
 730                     null, array('title' => $str->moveup)
 731                 );
 732             } else {
 733                 $icons[] = $str->spacer;
 734             }
 735             if ($down) {
 736                 $icons[] = $OUTPUT->action_icon(
 737                     new moodle_url('/course/manage.php', array('movedowncat' => $category->id, 'sesskey' => sesskey())),
 738                     new pix_icon('t/down', $str->movedown, 'moodle', array('class' => 'iconsmall')),
 739                     null, array('title' => $str->movedown)
 740                 );
 741             } else {
 742                 $icons[] = $str->spacer;
 743             }
 744         }
 745
 746         $actions = '';
 747         if (has_capability('moodle/category:manage', $categorycontext)) {
 748             $popupurl = new moodle_url('/course/manage.php', array('movecat' => $category->id, 'sesskey' => sesskey()));
 749             $tempdisplaylist = array(0 => get_string('top')) + coursecat::make_categories_list('moodle/category:manage', $category->id);
 750             $select = new single_select($popupurl, 'movetocat', $tempdisplaylist, $category->parent, null, "moveform$category->id");
 751             $select->set_label(get_string('frontpagecategorynames'), array('class' => 'accesshide'));
 752             $actions = $OUTPUT->render($select);
 753         }
 754
 755         $table->data[] = new html_table_row(array(
 756             // Category name.
 757             new html_table_cell($categoryname),
 758             // Course count.
 759             new html_table_cell($category->coursecount),
 760             // Icons.
 761             new html_table_cell(join(' ', $icons)),
 762             // Actions.
 763             new html_table_cell($actions)
 764         ));
 765     }
 766
 767     if ($categories = $category->get_children()) {
 768         // Print all the children recursively.
 769         $countcats = count($categories);
 770         $count = 0;
 771         $first = true;
 772         $last = false;
 773         foreach ($categories as $cat) {
 774             $count++;
 775             if ($count == $countcats) {
 776                 $last = true;
 777             }
 778             $up = $first ? false : true;
 779             $down = $last ? false : true;
 780             $first = false;
 781
 782             print_category_edit($table, $cat, $depth+1, $up, $down);
 783         }
 784     }
 785 }