function wiki_filter($courseid, $text)
{
global $CFG, $DB;
// Trivial-cache - keyed on $cachedcourseid
static $nothingtodo;
static $wikipagelist;
static $cachedcourseid;
if (empty($courseid)) {
$courseid = SITEID;
}
// Initialise/invalidate our trivial cache if dealing with a different course
if (!isset($cachedcourseid) || $cachedcourseid !== (int) $courseid) {
$wikipagelist = array();
$nothingtodo = false;
}
$cachedcourseid = (int) $courseid;
if (!empty($nothingtodo)) {
// We've been here in this page already
return $text;
}
/// Create a list of all the wikis to search for. It may be cached already.
if (empty($wikipagelist)) {
/// Get all wikis for this course.
if (!($wikis = wiki_get_course_wikis($courseid))) {
$nothingtodo = true;
return $text;
}
$wikipagelist = array();
/// Walk through each wiki, and get entries.
foreach ($wikis as $wiki) {
if ($wiki_entries = wiki_get_entries($wiki)) {
/// Walk through each entry and get the pages.
foreach ($wiki_entries as $wiki_entry) {
if ($wiki_pages = $DB->get_records('wiki_pages', array('wiki' => $wiki_entry->id), 'pagename, version DESC')) {
/// Walk through each page and filter.
$wikientries = array();
foreach ($wiki_pages as $wiki_page) {
if (!in_array($wiki_page->pagename, $wikientries)) {
$startlink = '<a class="wiki autolink" title="Wiki" href="' . $CFG->wwwroot . '/mod/wiki/view.php?wid=' . $wiki->id . '&userid=' . $wiki_entry->userid . '&groupid=' . $wiki_entry->groupid . '&page=' . $wiki_page->pagename . '">';
$wikipagelist[] = new filterobject($wiki_page->pagename, $startlink, '</a>', false, true);
$wikientries[] = $wiki_page->pagename;
}
}
}
}
}
}
}
return filter_phrases($text, $wikipagelist);
}
function wiki_get_other_wikis(&$wiki, &$user, &$course, $currentid = 0)
{
/// Returns a list of other wikis to display, depending on the type, group and user.
/// Returns the key containing the currently selected entry as well.
global $CFG, $id;
$wikis = false;
$groupmode = groups_get_activity_groupmode($wiki);
$mygroupid = mygroupid($course->id);
$isteacher = wiki_is_teacher($wiki, $user->id);
$isteacheredit = wiki_is_teacheredit($wiki, $user->id);
$groupingid = null;
$cm = new stdClass();
$cm->id = $wiki->cmid;
$cm->groupmode = $wiki->groupmode;
$cm->groupingid = $wiki->groupingid;
$cm->groupmembersonly = $wiki->groupmembersonly;
if (!empty($CFG->enablegroupings) && !empty($cm->groupingid)) {
$groupingid = $wiki->groupingid;
}
switch ($wiki->wtype) {
case 'student':
/// Get all the existing entries for this wiki.
$wiki_entries = wiki_get_entries($wiki, 'student');
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid)) {
$sql = "SELECT gm.userid FROM {$CFG->prefix}groups_members gm " . "INNER JOIN {$CFG->prefix}groupings_groups gg ON gm.groupid = gg.groupid " . "WHERE gg.groupingid = {$wiki->groupingid} ";
$groupingmembers = get_records_sql($sql);
}
if ($isteacher and SITEID != $course->id) {
/// If the user is an editing teacher, or a non-editing teacher not assigned to a group, show all student
/// wikis, regardless of creation.
if (SITEID != $course->id and ($isteacheredit or $groupmode == NOGROUPS)) {
if ($students = get_course_students($course->id)) {
/// Default pagename is dependent on the wiki settings.
$defpagename = empty($wiki->pagename) ? get_string('wikidefaultpagename', 'wiki') : $wiki->pagename;
foreach ($students as $student) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid) && empty($groupingmembers[$student->id])) {
continue;
}
/// If this student already has an entry, use its pagename.
if ($wiki_entries[$student->id]) {
$pagename = $wiki_entries[$student->id]->pagename;
} else {
$pagename = $defpagename;
}
$key = 'view.php?id=' . $id . '&userid=' . $student->id . '&page=' . $pagename;
$wikis[$key] = fullname($student) . ':' . $pagename;
}
}
} else {
if ($groupmode == SEPARATEGROUPS) {
if ($students = wiki_get_students($wiki, $mygroupid)) {
$defpagename = empty($wiki->pagename) ? get_string('wikidefaultpagename', 'wiki') : $wiki->pagename;
foreach ($students as $student) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid) && empty($groupingmembers[$student->id])) {
continue;
}
/// If this student already has an entry, use its pagename.
if ($wiki_entries[$student->id]) {
$pagename = $wiki_entries[$student->id]->pagename;
} else {
$pagename = $defpagename;
}
$key = 'view.php?id=' . $id . '&userid=' . $student->id . '&page=' . $pagename;
$wikis[$key] = fullname($student) . ':' . $pagename;
}
}
} else {
if ($groupmode == VISIBLEGROUPS) {
/// Get all students in your group.
if ($students = wiki_get_students($wiki, $mygroupid)) {
$defpagename = empty($wiki->pagename) ? get_string('wikidefaultpagename', 'wiki') : $wiki->pagename;
foreach ($students as $student) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid) && empty($groupingmembers[$student->id])) {
continue;
}
/// If this student already has an entry, use its pagename.
if ($wiki_entries[$student->id]) {
$pagename = $wiki_entries[$student->id]->pagename;
} else {
$pagename = $defpagename;
}
$key = 'view.php?id=' . $id . '&userid=' . $student->id . '&page=' . $pagename;
$wikis[$key] = fullname($student) . ':' . $pagename;
}
}
/// Get all student wikis created, regardless of group.
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid)) {
$sql = 'SELECT w.id, w.userid, w.pagename, u.firstname, u.lastname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w ' . ' INNER JOIN ' . $CFG->prefix . 'user u ON w.userid = u.id ' . ' INNER JOIN ' . $CFG->prefix . 'groups_members gm ON gm.userid = u.id ' . ' INNER JOIN ' . $CFG->prefix . 'groupings_groups gg ON gm.groupid = gg.groupid ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND gg.groupingid = ' . $wiki->groupingid . ' ORDER BY w.id';
} else {
$sql = 'SELECT w.id, w.userid, w.pagename, u.firstname, u.lastname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w, ' . $CFG->prefix . 'user u ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND u.id = w.userid ' . ' ORDER BY w.id';
}
$wiki_entries = get_records_sql($sql);
$wiki_entries = is_array($wiki_entries) ? $wiki_entries : array();
foreach ($wiki_entries as $wiki_entry) {
$key = 'view.php?id=' . $id . '&userid=' . $wiki_entry->userid . '&page=' . $wiki_entry->pagename;
$wikis[$key] = fullname($wiki_entry) . ':' . $wiki_entry->pagename;
if ($currentid == $wiki_entry->id) {
$wikis['selected'] = $key;
}
}
}
}
}
} else {
/// A user can see other student wikis if they are a member of the same
/// group (for separate groups) or there are visible groups, or if this is
/// a site-level wiki, and they are an administrator.
if ($groupmode == VISIBLEGROUPS or wiki_is_teacheredit($wiki)) {
$viewall = true;
} else {
if ($groupmode == SEPARATEGROUPS) {
$viewall = mygroupid($course->id);
} else {
$viewall = false;
}
}
if ($viewall !== false) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid)) {
$sql = 'SELECT w.id, w.userid, w.pagename, u.firstname, u.lastname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w ' . ' INNER JOIN ' . $CFG->prefix . 'user u ON w.userid = u.id ' . ' INNER JOIN ' . $CFG->prefix . 'groups_members gm ON gm.userid = u.id ' . ' INNER JOIN ' . $CFG->prefix . 'groupings_groups gg ON gm.groupid = gg.groupid ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND gg.groupingid = ' . $wiki->groupingid . ' ORDER BY w.id';
} else {
$sql = 'SELECT w.id, w.userid, w.pagename, u.firstname, u.lastname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w, ' . $CFG->prefix . 'user u ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND u.id = w.userid ' . ' ORDER BY w.id';
}
$wiki_entries = get_records_sql($sql);
$wiki_entries = is_array($wiki_entries) ? $wiki_entries : array();
foreach ($wiki_entries as $wiki_entry) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid) && empty($groupingmembers[$wiki_entry->userid])) {
continue;
}
if ($viewall === true or groups_is_member($viewall, $wiki_entry->userid)) {
$key = 'view.php?id=' . $id . '&userid=' . $wiki_entry->userid . '&page=' . $wiki_entry->pagename;
$wikis[$key] = fullname($wiki_entry) . ':' . $wiki_entry->pagename;
if ($currentid == $wiki_entry->id) {
$wikis['selected'] = $key;
}
}
}
}
}
break;
case 'group':
/// If the user is an editing teacher, or a non-editing teacher not assigned to a group, show all group
/// wikis, regardless of creation.
/// If user is a member of multiple groups, need to show current group etc?
/// Get all the existing entries for this wiki.
$wiki_entries = wiki_get_entries($wiki, 'group');
if ($groupmode and ($isteacheredit or $isteacher and !$mygroupid)) {
if ($groups = groups_get_all_groups($course->id, null, $groupingid)) {
$defpagename = empty($wiki->pagename) ? get_string('wikidefaultpagename', 'wiki') : $wiki->pagename;
foreach ($groups as $group) {
/// If this group already has an entry, use its pagename.
if (isset($wiki_entries[$group->id])) {
$pagename = $wiki_entries[$group->id]->pagename;
} else {
$pagename = $defpagename;
}
$key = 'view.php?id=' . $id . ($group->id ? "&groupid=" . $group->id : "") . '&page=' . $pagename;
$wikis[$key] = $group->name . ':' . $pagename;
}
}
} else {
if ($groupmode == SEPARATEGROUPS) {
if ($groups = groups_get_all_groups($course->id, $user->id, $groupingid)) {
$defpagename = empty($wiki->pagename) ? get_string('wikidefaultpagename', 'wiki') : $wiki->pagename;
foreach ($groups as $group) {
/// If this group already has an entry, use its pagename.
if (isset($wiki_entries[$group->id])) {
$pagename = $wiki_entries[$group->id]->pagename;
} else {
$pagename = $defpagename;
}
$key = 'view.php?id=' . $id . ($group->id ? "&groupid=" . $group->id : "") . '&page=' . $pagename;
$wikis[$key] = $group->name . ':' . $pagename;
}
}
} else {
if ($groupmode == VISIBLEGROUPS) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid)) {
$sql = 'SELECT w.id, w.groupid, w.pagename, g.name as gname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w ' . ' INNER JOIN ' . $CFG->prefix . 'groups g ON g.id = w.groupid ' . ' INNER JOIN ' . $CFG->prefix . 'groupings_groups gg ON g.id = gg.groupid ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND gg.groupingid = ' . $wiki->groupingid . ' ORDER BY w.groupid';
} else {
$sql = 'SELECT w.id, w.groupid, w.pagename, g.name as gname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w, ' . $CFG->prefix . 'groups g ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND g.id = w.groupid ' . ' ORDER BY w.groupid';
}
$wiki_entries = get_records_sql($sql);
$wiki_entries = is_array($wiki_entries) ? $wiki_entries : array();
foreach ($wiki_entries as $wiki_entry) {
$key = 'view.php?id=' . $id . ($wiki_entry->groupid ? "&groupid=" . $wiki_entry->groupid : "") . '&page=' . $wiki_entry->pagename;
$wikis[$key] = $wiki_entry->gname . ':' . $wiki_entry->pagename;
if ($currentid == $wiki_entry->id) {
$wikis['selected'] = $key;
}
}
}
}
}
break;
case 'teacher':
if ($isteacher) {
/// If the user is an editing teacher, or a non-editing teacher not assigned to a group, show all
/// teacher wikis, regardless of creation.
if ($groupmode and ($isteacheredit or $isteacher and !$mygroupid)) {
if ($groups = groups_get_all_groups($course->id, null, $groupingid)) {
$defpagename = empty($wiki->pagename) ? get_string('wikidefaultpagename', 'wiki') : $wiki->pagename;
foreach ($groups as $group) {
/// If this group already has an entry, use its pagename.
if ($wiki_entries[$group->id]) {
$pagename = $wiki_entries[$group->id]->pagename;
} else {
$pagename = $defpagename;
}
$key = 'view.php?id=' . $id . ($group->id ? "&groupid=" . $group->id : "") . '&page=' . $pagename;
$wikis[$key] = $group->name . ':' . $pagename;
}
}
} else {
if ($groupmode) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid)) {
$sql = 'SELECT w.id, w.groupid, w.pagename, g.name as gname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w ' . ' INNER JOIN ' . $CFG->prefix . 'groups g ON g.id = w.groupid ' . ' INNER JOIN ' . $CFG->prefix . 'groupings_groups gg ON g.id = gg.groupid ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND gg.groupingid = ' . $wiki->groupingid . ' ORDER BY w.groupid';
} else {
$sql = 'SELECT w.id, w.groupid, w.pagename, g.name as gname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w, ' . $CFG->prefix . 'groups g ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND g.id = w.groupid ' . ' ORDER BY w.groupid';
}
$wiki_entries = get_records_sql($sql);
$wiki_entries = is_array($wiki_entries) ? $wiki_entries : array();
foreach ($wiki_entries as $wiki_entry) {
$key = 'view.php?id=' . $id . ($wiki_entry->groupid ? "&groupid=" . $wiki_entry->groupid : "") . '&page=' . $wiki_entry->pagename;
$wikis[$key] = $wiki_entry->gname . ':' . $wiki_entry->pagename;
if ($currentid == $wiki_entry->id) {
$wikis['selected'] = $key;
}
}
}
}
} else {
/// A user can see other teacher wikis if they are a teacher, a member of the same
/// group (for separate groups) or there are visible groups.
if ($groupmode == VISIBLEGROUPS) {
$viewall = true;
} else {
if ($groupmode == SEPARATEGROUPS) {
$viewall = $mygroupid;
} else {
$viewall = false;
}
}
if ($viewall !== false) {
if (!empty($CFG->enablegroupings) && !empty($wiki->groupingid)) {
$sql = 'SELECT w.id, w.groupid, w.pagename, g.name as gname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w ' . ' INNER JOIN ' . $CFG->prefix . 'groups g ON g.id = w.groupid ' . ' INNER JOIN ' . $CFG->prefix . 'groupings_groups gg ON g.id = gg.groupid ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND gg.groupingid = ' . $wiki->groupingid . ' ORDER BY w.groupid';
} else {
$sql = 'SELECT w.id, w.groupid, w.pagename, g.name as gname ' . ' FROM ' . $CFG->prefix . 'wiki_entries w, ' . $CFG->prefix . 'groups g ' . ' WHERE w.wikiid = ' . $wiki->id . ' AND g.id = w.groupid ' . ' ORDER BY w.groupid';
}
$wiki_entries = get_records_sql($sql);
$wiki_entries = is_array($wiki_entries) ? $wiki_entries : array();
foreach ($wiki_entries as $wiki_entry) {
if ($viewall === true or @in_array($wiki_entry->groupid, $viewall)) {
$key = 'view.php?id=' . $id . ($wiki_entry->groupid ? "&groupid=" . $wiki_entry->groupid : "") . '&page=' . $wiki_entry->pagename;
$wikis[$key] = $wiki_entry->gname . ':' . $wiki_entry->pagename;
if ($currentid == $wiki_entry->id) {
$wikis['selected'] = $key;
}
}
}
}
}
break;
}
return $wikis;
}
/**
* part of search engine API
* @param wiki a wiki instance
* @return an array of searchable deocuments
*/
function wiki_get_content_for_index(&$wiki)
{
$documents = array();
$entries = wiki_get_entries($wiki);
if ($entries) {
$coursemodule = get_field('modules', 'id', 'name', 'wiki');
$cm = get_record('course_modules', 'course', $wiki->course, 'module', $coursemodule, 'instance', $wiki->id);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
foreach ($entries as $entry) {
//all pages
//$pages = wiki_get_pages($entry);
//latest pages
$pages = wiki_get_latest_pages($entry);
if (is_array($pages)) {
foreach ($pages as $page) {
if (strlen($page->content) > 0) {
$documents[] = new WikiSearchDocument(get_object_vars($page), $entry->wikiid, $entry->course, $entry->groupid, $page->userid, $context->id);
}
}
}
}
}
return $documents;
}
