skodak
84 lines
2.9 KiB
PHP
84 lines
2.9 KiB
PHP
<?php // $Id$
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//This function provides automatic linking to
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//activities when its name (title) is found inside every Moodle text
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//It's based in the glosssary filter by Williams Castillo
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//Modifications by stronk7.
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function activitynames_filter($courseid, $text) {
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global $CFG, $COURSE;
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// Trivial-cache - keyed on $cachedcourseid
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static $activitylist = null;
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static $cachedcourseid;
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if (empty($courseid)) {
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$courseid = SITEID;
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}
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// Initialise/invalidate our trivial cache if dealing with a different course
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if (!isset($cachedcourseid) || $cachedcourseid !== (int)$courseid) {
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$activitylist = null;
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}
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$cachedcourseid = (int)$courseid;
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/// It may be cached
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if (is_null($activitylist)) {
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$activitylist = array();
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if ($COURSE->id == $courseid) {
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$course = $COURSE;
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} else {
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$course = get_record("course", "id", $courseid);
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}
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if (!isset($course->modinfo)) {
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return $text;
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}
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/// Casting $course->modinfo to string prevents one notice when the field is null
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$modinfo = unserialize((string)$course->modinfo);
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if (!empty($modinfo)) {
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$activitylist = array(); /// We will store all the activities here
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//Sort modinfo by name length
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usort($modinfo, 'comparemodulenamesbylength');
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foreach ($modinfo as $activity) {
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//Exclude labels, hidden activities and activities for group members only
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if ($activity->mod != "label" and $activity->visible and empty($activity->groupmembersonly)) {
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$title = s(trim(strip_tags(urldecode($activity->name))));
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/// Avoid empty or unlinkable activity names
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if (!empty($title)) {
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$href_tag_begin = "<a class=\"autolink\" title=\"$title\" href=\"$CFG->wwwroot/mod/$activity->mod/view.php?id=$activity->cm\" $CFG->frametarget>";
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$currentname = urldecode($activity->name);
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if ($currentname = trim($currentname)) {
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$activitylist[] = new filterobject($currentname, $href_tag_begin, '</a>', false, true);
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}
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}
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}
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}
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}
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}
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if ($activitylist) {
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return $text = filter_phrases ($text, $activitylist);
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} else {
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return $text;
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}
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}
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//This function is used to order module names from longer to shorter
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function comparemodulenamesbylength($a, $b) {
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if (strlen($a->name) == strlen($b->name)) {
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return 0;
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}
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return (strlen($a->name) < strlen($b->name)) ? 1 : -1;
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}
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?>
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