3 // This file is part of Moodle - http://moodle.org/
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
19 * Library of functions and constants for module wiki
21 * It contains the great majority of functions defined by Moodle
22 * that are mandatory to develop a module.
25 * @copyright 2009 Marc Alier, Jordi Piguillem marc.alier@upc.edu
26 * @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu
28 * @author Jordi Piguillem
30 * @author David Jimenez
32 * @author Kenneth Riba
34 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
37 defined('MOODLE_INTERNAL') || die();
40 * Given an object containing all the necessary data,
41 * (defined by the form in mod.html) this function
42 * will create a new instance and return the id number
43 * of the new instance.
45 * @param object $instance An object from the form in mod.html
46 * @return int The id of the newly inserted wiki record
48 function wiki_add_instance($wiki) {
51 $wiki->timemodified = time();
52 # May have to add extra stuff in here #
53 if (empty($wiki->forceformat)) {
54 $wiki->forceformat = 0;
57 $id = $DB->insert_record('wiki', $wiki);
59 $completiontimeexpected = !empty($wiki->completionexpected) ? $wiki->completionexpected : null;
60 \core_completion\api::update_completion_date_event($wiki->coursemodule, 'wiki', $id, $completiontimeexpected);
66 * Given an object containing all the necessary data,
67 * (defined by the form in mod.html) this function
68 * will update an existing instance with new data.
70 * @param object $instance An object from the form in mod.html
71 * @return boolean Success/Fail
73 function wiki_update_instance($wiki) {
76 $wiki->timemodified = time();
77 $wiki->id = $wiki->instance;
78 if (empty($wiki->forceformat)) {
79 $wiki->forceformat = 0;
82 $completiontimeexpected = !empty($wiki->completionexpected) ? $wiki->completionexpected : null;
83 \core_completion\api::update_completion_date_event($wiki->coursemodule, 'wiki', $wiki->id, $completiontimeexpected);
85 # May have to add extra stuff in here #
87 return $DB->update_record('wiki', $wiki);
91 * Given an ID of an instance of this module,
92 * this function will permanently delete the instance
93 * and any data that depends on it.
95 * @param int $id Id of the module instance
96 * @return boolean Success/Failure
98 function wiki_delete_instance($id) {
101 if (!$wiki = $DB->get_record('wiki', array('id' => $id))) {
107 # Get subwiki information #
108 $subwikis = $DB->get_records('wiki_subwikis', array('wikiid' => $wiki->id));
110 foreach ($subwikis as $subwiki) {
111 # Get existing links, and delete them #
112 if (!$DB->delete_records('wiki_links', array('subwikiid' => $subwiki->id), IGNORE_MISSING)) {
116 # Get existing pages #
117 if ($pages = $DB->get_records('wiki_pages', array('subwikiid' => $subwiki->id))) {
118 foreach ($pages as $page) {
119 # Get locks, and delete them #
120 if (!$DB->delete_records('wiki_locks', array('pageid' => $page->id), IGNORE_MISSING)) {
124 # Get versions, and delete them #
125 if (!$DB->delete_records('wiki_versions', array('pageid' => $page->id), IGNORE_MISSING)) {
131 if (!$DB->delete_records('wiki_pages', array('subwikiid' => $subwiki->id), IGNORE_MISSING)) {
136 # Get existing synonyms, and delete them #
137 if (!$DB->delete_records('wiki_synonyms', array('subwikiid' => $subwiki->id), IGNORE_MISSING)) {
141 # Delete any subwikis #
142 if (!$DB->delete_records('wiki_subwikis', array('id' => $subwiki->id), IGNORE_MISSING)) {
147 $cm = get_coursemodule_from_instance('wiki', $id);
148 \core_completion\api::update_completion_date_event($cm->id, 'wiki', $wiki->id, null);
150 # Delete any dependent records here #
151 if (!$DB->delete_records('wiki', array('id' => $wiki->id))) {
159 * Implements callback to reset course
161 * @param stdClass $data
162 * @return boolean|array
164 function wiki_reset_userdata($data) {
166 require_once($CFG->dirroot . '/mod/wiki/pagelib.php');
167 require_once($CFG->dirroot . "/mod/wiki/locallib.php");
169 $componentstr = get_string('modulenameplural', 'wiki');
172 //get the wiki(s) in this course.
173 if (!$wikis = $DB->get_records('wiki', array('course' => $data->courseid))) {
176 if (empty($data->reset_wiki_comments) && empty($data->reset_wiki_tags) && empty($data->reset_wiki_pages)) {
180 foreach ($wikis as $wiki) {
181 if (!$cm = get_coursemodule_from_instance('wiki', $wiki->id, $data->courseid)) {
184 $context = context_module::instance($cm->id);
186 // Remove tags or all pages.
187 if (!empty($data->reset_wiki_pages) || !empty($data->reset_wiki_tags)) {
189 // Get subwiki information.
190 $subwikis = wiki_get_subwikis($wiki->id);
192 foreach ($subwikis as $subwiki) {
193 // Get existing pages.
194 if ($pages = wiki_get_page_list($subwiki->id)) {
195 // If the wiki page isn't selected then we are only removing tags.
196 if (empty($data->reset_wiki_pages)) {
197 // Go through each page and delete the tags.
198 foreach ($pages as $page) {
199 core_tag_tag::remove_all_item_tags('mod_wiki', 'wiki_pages', $page->id);
202 // Otherwise we are removing pages and tags.
203 wiki_delete_pages($context, $pages, $subwiki->id);
206 if (!empty($data->reset_wiki_pages)) {
207 // Delete any subwikis.
208 $DB->delete_records('wiki_subwikis', array('id' => $subwiki->id), IGNORE_MISSING);
210 // Delete any attached files.
211 $fs = get_file_storage();
212 $fs->delete_area_files($context->id, 'mod_wiki', 'attachments');
216 if (!empty($data->reset_wiki_pages)) {
217 $status[] = array('component' => $componentstr, 'item' => get_string('deleteallpages', 'wiki'),
220 if (!empty($data->reset_wiki_tags)) {
221 $status[] = array('component' => $componentstr, 'item' => get_string('tagsdeleted', 'wiki'), 'error' => false);
225 // Remove all comments.
226 if (!empty($data->reset_wiki_comments) || !empty($data->reset_wiki_pages)) {
227 $DB->delete_records_select('comments', "contextid = ? AND commentarea='wiki_page'", array($context->id));
228 if (!empty($data->reset_wiki_comments)) {
229 $status[] = array('component' => $componentstr, 'item' => get_string('deleteallcomments'), 'error' => false);
234 // Any changes to the list of dates that needs to be rolled should be same during course restore and course reset.
236 shift_course_mod_dates('wiki', array('editbegin', 'editend'), $data->timeshift, $data->courseid);
237 $status[] = array('component' => $componentstr, 'item' => get_string('datechanged'), 'error' => false);
243 function wiki_reset_course_form_definition(&$mform) {
244 $mform->addElement('header', 'wikiheader', get_string('modulenameplural', 'wiki'));
245 $mform->addElement('advcheckbox', 'reset_wiki_pages', get_string('deleteallpages', 'wiki'));
246 $mform->addElement('advcheckbox', 'reset_wiki_tags', get_string('removeallwikitags', 'wiki'));
247 $mform->addElement('advcheckbox', 'reset_wiki_comments', get_string('deleteallcomments'));
251 * Indicates API features that the wiki supports.
253 * @uses FEATURE_GROUPS
254 * @uses FEATURE_GROUPINGS
255 * @uses FEATURE_MOD_INTRO
256 * @uses FEATURE_COMPLETION_TRACKS_VIEWS
257 * @uses FEATURE_COMPLETION_HAS_RULES
258 * @uses FEATURE_GRADE_HAS_GRADE
259 * @uses FEATURE_GRADE_OUTCOMES
260 * @param string $feature
261 * @return mixed True if yes (some features may use other values)
263 function wiki_supports($feature) {
267 case FEATURE_GROUPINGS:
269 case FEATURE_MOD_INTRO:
271 case FEATURE_COMPLETION_TRACKS_VIEWS:
273 case FEATURE_GRADE_HAS_GRADE:
275 case FEATURE_GRADE_OUTCOMES:
279 case FEATURE_BACKUP_MOODLE2:
281 case FEATURE_SHOW_DESCRIPTION:
283 case FEATURE_COMMENT:
292 * Given a course and a time, this module should find recent activity
293 * that has occurred in wiki activities and print it out.
294 * Return true if there was output, or false is there was none.
298 * @uses CONTEXT_MODULE
299 * @uses VISIBLEGROUPS
300 * @param object $course
301 * @param bool $viewfullnames capability
302 * @param int $timestart
305 function wiki_print_recent_activity($course, $viewfullnames, $timestart) {
306 global $CFG, $DB, $OUTPUT;
308 $sql = "SELECT p.id, p.timemodified, p.subwikiid, sw.wikiid, w.wikimode, sw.userid, sw.groupid
310 JOIN {wiki_subwikis} sw ON sw.id = p.subwikiid
311 JOIN {wiki} w ON w.id = sw.wikiid
312 WHERE p.timemodified > ? AND w.course = ?
313 ORDER BY p.timemodified ASC";
314 if (!$pages = $DB->get_records_sql($sql, array($timestart, $course->id))) {
317 require_once($CFG->dirroot . "/mod/wiki/locallib.php");
321 $modinfo = get_fast_modinfo($course);
323 $subwikivisible = array();
324 foreach ($pages as $page) {
325 if (!isset($subwikivisible[$page->subwikiid])) {
326 $subwiki = (object)array('id' => $page->subwikiid, 'wikiid' => $page->wikiid,
327 'groupid' => $page->groupid, 'userid' => $page->userid);
328 $wiki = (object)array('id' => $page->wikiid, 'course' => $course->id, 'wikimode' => $page->wikimode);
329 $subwikivisible[$page->subwikiid] = wiki_user_can_view($subwiki, $wiki);
331 if ($subwikivisible[$page->subwikiid]) {
335 unset($subwikivisible);
341 echo $OUTPUT->heading(get_string("updatedwikipages", 'wiki') . ':', 6);
342 foreach ($wikis as $wiki) {
343 $cm = $modinfo->instances['wiki'][$wiki->wikiid];
344 $link = $CFG->wwwroot . '/mod/wiki/view.php?pageid=' . $wiki->id;
345 print_recent_activity_note($wiki->timemodified, $wiki, $cm->name, $link, false, $viewfullnames);
348 return true; // True if anything was printed, otherwise false
352 * Must return an array of grades for a given instance of this module,
353 * indexed by user. It also returns a maximum allowed grade.
356 * $return->grades = array of grades;
357 * $return->maxgrade = maximum allowed grade;
361 * @param int $wikiid ID of an instance of this module
362 * @return mixed Null or object with an array of grades and with the maximum grade
364 function wiki_grades($wikiid) {
369 * @deprecated since Moodle 3.8
371 function wiki_scale_used() {
372 throw new coding_exception('wiki_scale_used() can not be used anymore. Plugins can implement ' .
373 '<modname>_scale_used_anywhere, all implementations of <modname>_scale_used are now ignored');
377 * Checks if scale is being used by any instance of wiki.
378 * This function was added in 1.9
380 * This is used to find out if scale used anywhere
381 * @param $scaleid int
382 * @return boolean True if the scale is used by any wiki
384 function wiki_scale_used_anywhere($scaleid) {
387 //if ($scaleid and $DB->record_exists('wiki', array('grade' => -$scaleid))) {
397 * file serving callback
399 * @copyright Josep Arus
402 * @param stdClass $course course object
403 * @param stdClass $cm course module object
404 * @param stdClass $context context object
405 * @param string $filearea file area
406 * @param array $args extra arguments
407 * @param bool $forcedownload whether or not force download
408 * @param array $options additional options affecting the file serving
409 * @return bool false if the file was not found, just send the file otherwise and do not return anything
411 function wiki_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options=array()) {
414 if ($context->contextlevel != CONTEXT_MODULE) {
418 require_login($course, true, $cm);
420 require_once($CFG->dirroot . "/mod/wiki/locallib.php");
422 if ($filearea == 'attachments') {
423 $swid = (int) array_shift($args);
425 if (!$subwiki = wiki_get_subwiki($swid)) {
429 require_capability('mod/wiki:viewpage', $context);
431 $relativepath = implode('/', $args);
433 $fullpath = "/$context->id/mod_wiki/attachments/$swid/$relativepath";
435 $fs = get_file_storage();
436 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
440 send_stored_file($file, null, 0, $options);
447 * @param stdClass $cm course module object
448 * @param string $search searchword.
449 * @param stdClass $subwiki Optional Subwiki.
450 * @return Search wiki input form
452 function wiki_search_form($cm, $search = '', $subwiki = null) {
456 (object) ['type' => 'hidden', 'name' => 'courseid', 'value' => $cm->course],
457 (object) ['type' => 'hidden', 'name' => 'cmid', 'value' => $cm->id],
458 (object) ['type' => 'hidden', 'name' => 'searchwikicontent', 'value' => 1],
460 if (!empty($subwiki->id)) {
461 $hiddenfields[] = (object) ['type' => 'hidden', 'name' => 'subwikiid', 'value' => $subwiki->id];
464 'action' => new moodle_url('/mod/wiki/search.php'),
465 'hiddenfields' => $hiddenfields,
466 'inputname' => 'searchstring',
467 'query' => s($search, true),
468 'searchstring' => get_string('searchwikis', 'wiki'),
469 'extraclasses' => 'mt-2'
471 return $OUTPUT->render_from_template('core/search_input', $data);
474 function wiki_extend_navigation(navigation_node $navref, $course, $module, $cm) {
475 global $CFG, $PAGE, $USER;
477 require_once($CFG->dirroot . '/mod/wiki/locallib.php');
479 $context = context_module::instance($cm->id);
482 if ($module->wikimode == 'individual') {
486 if (!$wiki = wiki_get_wiki($cm->instance)) {
490 if (!$gid = groups_get_activity_group($cm)) {
493 if (!$subwiki = wiki_get_subwiki_by_group($cm->instance, $gid, $userid)) {
496 $swid = $subwiki->id;
499 $pageid = $url->param('pageid');
500 $cmid = $url->param('id');
501 if (empty($pageid) && !empty($cmid)) {
503 $page = wiki_get_page_by_title($swid, $wiki->firstpagetitle);
507 if (wiki_can_create_pages($context)) {
508 $link = new moodle_url('/mod/wiki/create.php', array('action' => 'new', 'swid' => $swid));
509 $node = $navref->add(get_string('newpage', 'wiki'), $link, navigation_node::TYPE_SETTING);
512 if (is_numeric($pageid)) {
514 if (has_capability('mod/wiki:viewpage', $context)) {
515 $link = new moodle_url('/mod/wiki/view.php', array('pageid' => $pageid));
516 $node = $navref->add(get_string('view', 'wiki'), $link, navigation_node::TYPE_SETTING);
519 if (wiki_user_can_edit($subwiki)) {
520 $link = new moodle_url('/mod/wiki/edit.php', array('pageid' => $pageid));
521 $node = $navref->add(get_string('edit', 'wiki'), $link, navigation_node::TYPE_SETTING);
524 if (has_capability('mod/wiki:viewcomment', $context)) {
525 $link = new moodle_url('/mod/wiki/comments.php', array('pageid' => $pageid));
526 $node = $navref->add(get_string('comments', 'wiki'), $link, navigation_node::TYPE_SETTING);
529 if (has_capability('mod/wiki:viewpage', $context)) {
530 $link = new moodle_url('/mod/wiki/history.php', array('pageid' => $pageid));
531 $node = $navref->add(get_string('history', 'wiki'), $link, navigation_node::TYPE_SETTING);
534 if (has_capability('mod/wiki:viewpage', $context)) {
535 $link = new moodle_url('/mod/wiki/map.php', array('pageid' => $pageid));
536 $node = $navref->add(get_string('map', 'wiki'), $link, navigation_node::TYPE_SETTING);
539 if (has_capability('mod/wiki:viewpage', $context)) {
540 $link = new moodle_url('/mod/wiki/files.php', array('pageid' => $pageid));
541 $node = $navref->add(get_string('files', 'wiki'), $link, navigation_node::TYPE_SETTING);
544 if (has_capability('mod/wiki:managewiki', $context)) {
545 $link = new moodle_url('/mod/wiki/admin.php', array('pageid' => $pageid));
546 $node = $navref->add(get_string('admin', 'wiki'), $link, navigation_node::TYPE_SETTING);
551 * Returns all other caps used in wiki module
555 function wiki_get_extra_capabilities() {
556 return array('moodle/comment:view', 'moodle/comment:post', 'moodle/comment:delete');
560 * Running addtional permission check on plugin, for example, plugins
561 * may have switch to turn on/off comments option, this callback will
562 * affect UI display, not like pluginname_comment_validate only throw
564 * Capability check has been done in comment->check_permissions(), we
565 * don't need to do it again here.
570 * @param stdClass $comment_param {
571 * context => context the context object
572 * courseid => int course id
573 * cm => stdClass course module object
574 * commentarea => string comment area
575 * itemid => int itemid
579 function wiki_comment_permissions($comment_param) {
580 return array('post'=>true, 'view'=>true);
584 * Validate comment parameter before perform other comments actions
586 * @param stdClass $comment_param {
587 * context => context the context object
588 * courseid => int course id
589 * cm => stdClass course module object
590 * commentarea => string comment area
591 * itemid => int itemid
599 function wiki_comment_validate($comment_param) {
601 require_once($CFG->dirroot . '/mod/wiki/locallib.php');
602 // validate comment area
603 if ($comment_param->commentarea != 'wiki_page') {
604 throw new comment_exception('invalidcommentarea');
607 if (!$record = $DB->get_record('wiki_pages', array('id'=>$comment_param->itemid))) {
608 throw new comment_exception('invalidcommentitemid');
610 if (!$subwiki = wiki_get_subwiki($record->subwikiid)) {
611 throw new comment_exception('invalidsubwikiid');
613 if (!$wiki = wiki_get_wiki_from_pageid($comment_param->itemid)) {
614 throw new comment_exception('invalidid', 'data');
616 if (!$course = $DB->get_record('course', array('id'=>$wiki->course))) {
617 throw new comment_exception('coursemisconf');
619 if (!$cm = get_coursemodule_from_instance('wiki', $wiki->id, $course->id)) {
620 throw new comment_exception('invalidcoursemodule');
622 $context = context_module::instance($cm->id);
624 if ($subwiki->groupid) {
625 $groupmode = groups_get_activity_groupmode($cm, $course);
626 if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
627 if (!groups_is_member($subwiki->groupid)) {
628 throw new comment_exception('notmemberofgroup');
632 // validate context id
633 if ($context->id != $comment_param->context->id) {
634 throw new comment_exception('invalidcontext');
636 // validation for comment deletion
637 if (!empty($comment_param->commentid)) {
638 if ($comment = $DB->get_record('comments', array('id'=>$comment_param->commentid))) {
639 if ($comment->commentarea != 'wiki_page') {
640 throw new comment_exception('invalidcommentarea');
642 if ($comment->contextid != $context->id) {
643 throw new comment_exception('invalidcontext');
645 if ($comment->itemid != $comment_param->itemid) {
646 throw new comment_exception('invalidcommentitemid');
649 throw new comment_exception('invalidcommentid');
656 * Return a list of page types
657 * @param string $pagetype current page type
658 * @param stdClass $parentcontext Block's parent context
659 * @param stdClass $currentcontext Current context of block
661 function wiki_page_type_list($pagetype, $parentcontext, $currentcontext) {
662 $module_pagetype = array(
663 'mod-wiki-*'=>get_string('page-mod-wiki-x', 'wiki'),
664 'mod-wiki-view'=>get_string('page-mod-wiki-view', 'wiki'),
665 'mod-wiki-comments'=>get_string('page-mod-wiki-comments', 'wiki'),
666 'mod-wiki-history'=>get_string('page-mod-wiki-history', 'wiki'),
667 'mod-wiki-map'=>get_string('page-mod-wiki-map', 'wiki')
669 return $module_pagetype;
673 * Mark the activity completed (if required) and trigger the course_module_viewed event.
675 * @param stdClass $wiki Wiki object.
676 * @param stdClass $course Course object.
677 * @param stdClass $cm Course module object.
678 * @param stdClass $context Context object.
681 function wiki_view($wiki, $course, $cm, $context) {
682 // Trigger course_module_viewed event.
684 'context' => $context,
685 'objectid' => $wiki->id
687 $event = \mod_wiki\event\course_module_viewed::create($params);
688 $event->add_record_snapshot('course_modules', $cm);
689 $event->add_record_snapshot('course', $course);
690 $event->add_record_snapshot('wiki', $wiki);
694 $completion = new completion_info($course);
695 $completion->set_module_viewed($cm);
699 * Mark the activity completed (if required) and trigger the page_viewed event.
701 * @param stdClass $wiki Wiki object.
702 * @param stdClass $page Page object.
703 * @param stdClass $course Course object.
704 * @param stdClass $cm Course module object.
705 * @param stdClass $context Context object.
706 * @param int $uid Optional User ID.
707 * @param array $other Optional Other params: title, wiki ID, group ID, groupanduser, prettyview.
708 * @param stdClass $subwiki Optional Subwiki.
711 function wiki_page_view($wiki, $page, $course, $cm, $context, $uid = null, $other = null, $subwiki = null) {
713 // Trigger course_module_viewed event.
715 'context' => $context,
716 'objectid' => $page->id
719 $params['relateduserid'] = $uid;
721 if ($other != null) {
722 $params['other'] = $other;
725 $event = \mod_wiki\event\page_viewed::create($params);
727 $event->add_record_snapshot('wiki_pages', $page);
728 $event->add_record_snapshot('course_modules', $cm);
729 $event->add_record_snapshot('course', $course);
730 $event->add_record_snapshot('wiki', $wiki);
731 if ($subwiki != null) {
732 $event->add_record_snapshot('wiki_subwikis', $subwiki);
737 $completion = new completion_info($course);
738 $completion->set_module_viewed($cm);
742 * Check if the module has any update that affects the current user since a given time.
744 * @param cm_info $cm course module data
745 * @param int $from the time to check updates from
746 * @param array $filter if we need to check only specific updates
747 * @return stdClass an object with the different type of areas indicating if they were updated or not
750 function wiki_check_updates_since(cm_info $cm, $from, $filter = array()) {
752 require_once($CFG->dirroot . '/mod/wiki/locallib.php');
754 $updates = new stdClass();
755 if (!has_capability('mod/wiki:viewpage', $cm->context)) {
758 $updates = course_check_module_updates_since($cm, $from, array('attachments'), $filter);
760 // Check only pages updated in subwikis the user can access.
761 $updates->pages = (object) array('updated' => false);
762 $wiki = $DB->get_record($cm->modname, array('id' => $cm->instance), '*', MUST_EXIST);
763 if ($subwikis = wiki_get_visible_subwikis($wiki, $cm, $cm->context)) {
764 $subwikisids = array();
765 foreach ($subwikis as $subwiki) {
766 $subwikisids[] = $subwiki->id;
768 list($subwikissql, $params) = $DB->get_in_or_equal($subwikisids, SQL_PARAMS_NAMED);
769 $select = 'subwikiid ' . $subwikissql . ' AND (timemodified > :since1 OR timecreated > :since2)';
770 $params['since1'] = $from;
771 $params['since2'] = $from;
772 $pages = $DB->get_records_select('wiki_pages', $select, $params, '', 'id');
773 if (!empty($pages)) {
774 $updates->pages->updated = true;
775 $updates->pages->itemids = array_keys($pages);
782 * Get icon mapping for font-awesome.
784 function mod_wiki_get_fontawesome_icon_map() {
786 'mod_wiki:attachment' => 'fa-paperclip',
791 * This function receives a calendar event and returns the action associated with it, or null if there is none.
793 * This is used by block_myoverview in order to display the event appropriately. If null is returned then the event
794 * is not displayed on the block.
796 * @param calendar_event $event
797 * @param \core_calendar\action_factory $factory
798 * @param int $userid User id to use for all capability checks, etc. Set to 0 for current user (default).
799 * @return \core_calendar\local\event\entities\action_interface|null
801 function mod_wiki_core_calendar_provide_event_action(calendar_event $event,
802 \core_calendar\action_factory $factory,
810 $cm = get_fast_modinfo($event->courseid, $userid)->instances['wiki'][$event->instance];
812 if (!$cm->uservisible) {
813 // The module is not visible to the user for any reason.
817 $completion = new \completion_info($cm->get_course());
819 $completiondata = $completion->get_data($cm, false, $userid);
821 if ($completiondata->completionstate != COMPLETION_INCOMPLETE) {
825 return $factory->create_instance(
827 new \moodle_url('/mod/wiki/view.php', ['id' => $cm->id]),
834 * Sets dynamic information about a course module
836 * This callback is called from cm_info when checking module availability (incl. $cm->uservisible)
838 * Main viewing capability in mod_wiki is 'mod/wiki:viewpage' instead of the expected standardised 'mod/wiki:view'.
839 * The method cm_info::is_user_access_restricted_by_capability() does not work for wiki, we need to implement
844 function wiki_cm_info_dynamic(cm_info $cm) {
845 if (!has_capability('mod/wiki:viewpage', $cm->context, $cm->get_modinfo()->get_user_id())) {
846 $cm->set_available(false);