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glossary_document.php
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glossary_document.php
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<?php
/**
* Global Search Engine for Moodle
*
* @package search
* @category core
* @subpackage document_wrappers
* @author Michael Campanis (mchampan) [cynnical@gmail.com], Valery Fremaux [valery.fremaux@club-internet.fr] > 1.8
* @date 2008/03/31
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
*
* document handling for glossary activity module
* This file contains a mapping between a glossary entry and it's indexable counterpart,
*
* Functions for iterating and retrieving the necessary records are now also included
* in this file, rather than mod/glossary/lib.php
*
*/
/**
* includes and requires
*/
require_once("$CFG->dirroot/search/documents/document.php");
/**
* a class for representing searchable information
*
*/
class GlossarySearchDocument extends SearchDocument {
/**
* document constructor
*
*/
public function __construct(&$entry, $course_id, $context_id) {
// generic information; required
$doc->docid = $entry['id'];
$doc->documenttype = SEARCH_TYPE_GLOSSARY;
$doc->itemtype = 'standard';
$doc->contextid = $context_id;
$doc->title = $entry['concept'];
$doc->date = $entry['timecreated'];
if ($entry['userid'])
$user = get_record('user', 'id', $entry['userid']);
$doc->author = ($user ) ? $user->firstname.' '.$user->lastname : '' ;
$doc->contents = strip_tags($entry['definition']);
$doc->url = glossary_make_link($entry['id']);
// module specific information; optional
$data->glossary = $entry['glossaryid'];
// construct the parent class
parent::__construct($doc, $data, $course_id, -1, $entry['userid'], 'mod/'.SEARCH_TYPE_GLOSSARY);
}
}
/**
* a class for representing searchable information
*
*/
class GlossaryCommentSearchDocument extends SearchDocument {
/**
* document constructor
*/
public function __construct(&$entry, $glossary_id, $course_id, $context_id) {
// generic information; required
$doc->docid = $entry['id'];
$doc->documenttype = SEARCH_TYPE_GLOSSARY;
$doc->itemtype = 'comment';
$doc->contextid = $context_id;
$doc->title = get_string('commenton', 'search') . ' ' . $entry['concept'];
$doc->date = $entry['timemodified'];
if ($entry['userid'])
$user = get_record('user', 'id', $entry['userid']);
$doc->author = ($user ) ? $user->firstname.' '.$user->lastname : '' ;
$doc->contents = strip_tags($entry['entrycomment']);
$doc->url = glossary_make_link($entry['entryid']);
// module specific information; optional
$data->glossary = $glossary_id;
// construct the parent class
parent::__construct($doc, $data, $course_id, -1, $entry['userid'], PATH_FOR_SEARCH_TYPE_GLOSSARY);
}
}
/**
* constructs valid access links to information
* @param entry_id the id of the glossary entry
* @return a full featured link element as a string
*/
function glossary_make_link($entry_id) {
global $CFG;
//links directly to entry
// return $CFG->wwwroot.'/mod/glossary/showentry.php?eid='.$entry_id;
// TOO LONG URL
// Suggestion : bounce on popup within the glossarie's showentry page
// preserve glossary pop-up, be careful where you place your ' and "s
//this function is meant to return a url that is placed between href='[url here]'
return "$CFG->wwwroot/mod/glossary/showentry.php?eid=$entry_id' onclick='return openpopup(\"/mod/glossary/showentry.php?eid=$entry_id\", \"entry\", DEFAULT_POPUP_SETTINGS, 0);";
}
/**
* part of search engine API
*
*/
function glossary_iterator() {
$glossaries = get_records('glossary');
return $glossaries;
}
/**
* part of search engine API
* @glossary a glossary instance
* @return an array of searchable documents
*/
function glossary_get_content_for_index(&$glossary) {
global $DB;
// get context
$coursemodule = get_field('modules', 'id', 'name', 'glossary');
$cm = get_record('course_modules', 'course', $glossary->course, 'module', $coursemodule, 'instance', $glossary->id);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$documents = array();
$entryIds = array();
// index entries
$entries = get_records('glossary_entries', 'glossaryid', $glossary->id);
if ($entries){
foreach($entries as $entry) {
$concepts[$entry->id] = $entry->concept;
if (strlen($entry->definition) > 0) {
$entryIds[] = $entry->id;
$documents[] = new GlossarySearchDocument(get_object_vars($entry), $glossary->course, $context->id);
}
}
}
// index comments
if (count($entryIds)){
$comments = $DB->get_records_list('glossary_comments', 'entryid', $entryIds);
if ($comments){
foreach($comments as $comment) {
if (strlen($comment->entrycomment) > 0) {
$comment->concept = $concepts[$comment->entryid];
$documents[] = new GlossaryCommentSearchDocument(get_object_vars($comment), $glossary->id, $glossary->course, $context->id);
}
}
}
}
return $documents;
}
/**
* part of search engine API
* @param id the glossary entry identifier
* @itemtype the type of information
* @return a single search document based on a glossary entry
*/
function glossary_single_document($id, $itemtype) {
if ($itemtype == 'standard'){
$entry = get_record('glossary_entries', 'id', $id);
}
elseif ($itemtype == 'comment'){
$comment = get_record('glossary_comments', 'id', $id);
$entry = get_record('glossary_entries', 'id', $comment->entryid);
}
$glossary_course = get_field('glossary', 'course', 'id', $entry->glossaryid);
$coursemodule = get_field('modules', 'id', 'name', 'glossary');
$cm = get_record('course_modules', 'course', $glossary_course, 'module', $coursemodule, 'instance', $entry->glossaryid);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
if ($itemtype == 'standard'){
return new GlossarySearchDocument(get_object_vars($entry), $glossary_course, $context->id);
}
elseif ($itemtype == 'comment'){
return new GlossaryCommentSearchDocument(get_object_vars($comment), $entry->glossaryid, $glossary_course, $context->id);
}
}
/**
* dummy delete function that packs id with itemtype.
* this was here for a reason, but I can't remember it at the moment.
*
*/
function glossary_delete($info, $itemtype) {
$object->id = $info;
$object->itemtype = $itemtype;
return $object;
}
/**
* returns the var names needed to build a sql query for addition/deletions
*
*/
function glossary_db_names() {
//[primary id], [table name], [time created field name], [time modified field name]
return array(
array('id', 'glossary_entries', 'timecreated', 'timemodified', 'standard'),
array('id', 'glossary_comments', 'timemodified', 'timemodified', 'comment')
);
}
/**
* this function handles the access policy to contents indexed as searchable documents. If this
* function does not exist, the search engine assumes access is allowed.
* When this point is reached, we already know that :
* - user is legitimate in the surrounding context
* - user may be guest and guest access is allowed to the module
* - the function may perform local checks within the module information logic
* @param string $path the access path to the module script code
* @param string $itemtype the information subclassing (usefull for complex modules, defaults to 'standard')
* @param int $this_id the item id within the information class denoted by itemtype. In glossaries, this id
* points out the indexed glossary item.
* @param object $user the user record denoting the user who searches
* @param int $group_id the current group used by the user when searching
* @param int $context_id the current group used by the user when searching
* @return true if access is allowed, false elsewhere
*/
function glossary_check_text_access($path, $itemtype, $this_id, $user, $group_id, $context_id){
global $CFG;
// get the glossary object and all related stuff
$entry = get_record('glossary_entries', 'id', $this_id);
$glossary = get_record('glossary', 'id', $entry->glossaryid);
$context = get_record('context', 'id', $context_id);
$cm = get_record('course_modules', 'id', $context->instanceid);
// $cm = get_coursemodule_from_instance('glossary', $glossary->id, $glossary->course);
// $context = get_context_instance(CONTEXT_MODULE, $cm->id);
if (!$cm->visible && !has_capability('moodle/course:viewhiddenactivities', $context)) {
return false;
}
//approval check : entries should be approved for being viewed, or belongs to the user unless the viewer can approve them or manage them
if (!$entry->approved && $user != $entry->userid && !has_capability('mod/glossary:approve', $context) && !has_capability('mod/glossary:manageentries', $context)) {
return false;
}
return true;
}
/**
* post processes the url for cleaner output.
* @param string $title
*/
function glossary_link_post_processing($title){
return mb_convert_encoding($title, 'auto', 'UTF-8');
}
?>