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<?PHP // $Id: search.php,v 1.29 2004/08/22 14:38:41 gustav_delius Exp $
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require_once("../../config.php");
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require_once("lib.php");
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require_variable($id); // course id
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optional_variable($search, ""); // search string
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optional_variable($page, "0"); // which page to show
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optional_variable($perpage, "20"); // which page to show
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$search = trim(strip_tags($search));
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<?php // $Id: search.php,v 1.55.2.1 2005/05/29 04:04:31 moodler Exp $
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require_once('../../config.php');
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require_once('lib.php');
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$id = required_param('id', PARAM_INT); // course id
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$search = trim(optional_param('search', '', PARAM_NOTAGS)); // search string
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$page = optional_param('page', 0, PARAM_INT); // which page to show
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$perpage = optional_param('perpage', 10, PARAM_INT); // how many per page
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$showform = optional_param('showform', 0, PARAM_INT); // Just show the form
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$user = trim(optional_param('user', '', PARAM_NOTAGS)); // Names to search for
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$userid = trim(optional_param('userid', 0, PARAM_INT)); // UserID to search for
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$forumid = trim(optional_param('forumid', 0, PARAM_INT)); // ForumID to search for
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$subject = trim(optional_param('subject', '', PARAM_NOTAGS)); // Subject
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$phrase = trim(optional_param('phrase', '', PARAM_NOTAGS)); // Phrase
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$words = trim(optional_param('words', '', PARAM_NOTAGS)); // Words
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$fullwords = trim(optional_param('fullwords', '', PARAM_NOTAGS)); // Whole words
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$notwords = trim(optional_param('notwords', '', PARAM_NOTAGS)); // Words we don't want
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$timefromrestrict = optional_param('timefromrestrict', 0, PARAM_INT); // Use starting date
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$fromday = optional_param('fromday', 0, PARAM_INT); // Starting date
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$frommonth = optional_param('frommonth', 0, PARAM_INT); // Starting date
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$fromyear = optional_param('fromyear', 0, PARAM_INT); // Starting date
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$fromhour = optional_param('fromhour', 0, PARAM_INT); // Starting date
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$fromminute = optional_param('fromminute', 0, PARAM_INT); // Starting date
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if ($timefromrestrict) {
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$datefrom = make_timestamp($fromyear, $frommonth, $fromday, $fromhour, $fromminute);
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$datefrom = optional_param('datefrom', 0, PARAM_INT); // Starting date
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$timetorestrict = optional_param('timetorestrict', 0, PARAM_INT); // Use ending date
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$today = optional_param('today', 0, PARAM_INT); // Ending date
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$tomonth = optional_param('tomonth', 0, PARAM_INT); // Ending date
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$toyear = optional_param('toyear', 0, PARAM_INT); // Ending date
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$tohour = optional_param('tohour', 0, PARAM_INT); // Ending date
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$tominute = optional_param('tominute', 0, PARAM_INT); // Ending date
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if ($timetorestrict) {
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$dateto = make_timestamp($toyear, $tomonth, $today, $tohour, $tominute);
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$dateto = optional_param('datefrom', 0, PARAM_INT); // Ending date
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if (empty($search)) { // Check the other parameters instead
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$search .= ' '.$words;
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if (!empty($userid)) {
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$search .= ' userid:'.$userid;
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if (!empty($forumid)) {
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$search .= ' forumid:'.$forumid;
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$search .= ' '.forum_clean_search_terms($user, 'user:');
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if (!empty($subject)) {
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$search .= ' '.forum_clean_search_terms($subject, 'subject:');
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if (!empty($fullwords)) {
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$search .= ' '.forum_clean_search_terms($fullwords, '+');
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if (!empty($notwords)) {
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$search .= ' '.forum_clean_search_terms($notwords, '-');
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if (!empty($phrase)) {
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$search .= ' "'.$phrase.'"';
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if (!empty($datefrom)) {
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$search .= ' datefrom:'.$datefrom;
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if (!empty($dateto)) {
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$search .= ' dateto:'.$dateto;
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$individualparams = true;
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$individualparams = false;
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$searchterms = explode(" ", $search); // Search for words independently
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foreach ($searchterms as $key => $searchterm) {
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if (strlen($searchterm) < 2) {
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unset($searchterms[$key]);
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$search = s(trim(implode(" ", $searchterms)));
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$search = forum_clean_search_terms($search);
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if (! $course = get_record("course", "id", $id)) {
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error("Course id is incorrect.");
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if ($course->category or $CFG->forcelogin) {
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require_login($course->id);
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require_course_login($course);
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add_to_log($course->id, "forum", "search", "search.php?id=$course->id&search=".urlencode($search), $search);
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add_to_log($course->id, "forum", "search", "search.php?id=$course->id&search=".urlencode($search), $search);
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$strforums = get_string("modulenameplural", "forum");
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$strsearch = get_string("search", "forum");
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$strsearchresults = get_string("searchresults", "forum");
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$strpage = get_string("page");
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$searchform = forum_print_search_form($course, $search, true, "plain");
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if (!$search || $showform) {
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print_header_simple("$strsearch", "",
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"<A HREF=\"index.php?id=$course->id\">$strforums</A> -> $strsearch", "search.search",
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"<a href=\"index.php?id=$course->id\">$strforums</a> -> $strsearch", 'search.words',
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"", "", " ", navmenu($course));
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print_simple_box_start("center");
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forum_print_big_search_form($course);
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print_footer($course);
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/// We need to do a search now and print results
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$searchterms = str_replace('forumid:', 'instance:', $search);
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$searchterms = explode(' ', $searchterms);
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$searchform = forum_search_form($course, $search);
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if ($group = user_group($course->id, $USER->id)) {
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$groupid = $group->id;
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if (!$posts = forum_search_posts($searchterms, $course->id, $page*$perpage, $perpage, $totalcount, $groupid)) {
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print_header_simple("$strsearchresults", "",
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"<a href=\"index.php?id=$course->id\">$strforums</a> ->
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<a href=\"search.php?id=$course->id\">$strsearch</a> -> ".s($search), 'search.words',
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"", "", " ", navmenu($course));
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print_heading(get_string("nopostscontaining", "forum", $search));
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if (!$individualparams) {
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forum_print_big_search_form($course);
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print_footer($course);
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print_header_simple("$strsearchresults", "",
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"<a href=\"index.php?id=$course->id\">$strforums</a> ->
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<a href=\"search.php?id=$course->id\">$strsearch</a> -> ".s($search), '',
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"", "", $searchform, navmenu($course));
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echo '<div class="reportlink">';
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echo '<a href="search.php?id='.$course->id.
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'&user='.urlencode($user).
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'&userid='.$userid.
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'&forumid='.$forumid.
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'&subject='.urlencode($subject).
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'&phrase='.urlencode($phrase).
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'&words='.urlencode($words).
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'&fullwords='.urlencode($fullwords).
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'&notwords='.urlencode($notwords).
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'&dateto='.$dateto.
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'&datefrom='.$datefrom.
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'">'.get_string('advancedsearch','forum').'...</a>';
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print_heading("$strsearchresults: $totalcount");
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print_paging_bar($totalcount, $page, $perpage, "search.php?search=$search&id=$course->id&perpage=$perpage&");
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//added to implement highlighting of search terms found only in HTML markup
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//fiedorow - 9/2/2005
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$strippedsearch = str_replace('user:','',$search);
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$strippedsearch = str_replace('subject:','',$strippedsearch);
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$strippedsearch = str_replace('"','',$strippedsearch);
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$searchterms = explode(' ', $strippedsearch); // Search for words independently
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foreach ($searchterms as $key => $searchterm) {
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if (preg_match('/^\-/',$searchterm)) {
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unset($searchterms[$key]);
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$searchterms[$key] = preg_replace('/^\+/','',$searchterm);
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$strippedsearch = implode(' ', $searchterms); // Rebuild the string
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foreach ($posts as $post) {
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if (! $discussion = get_record('forum_discussions', 'id', $post->discussion)) {
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error('Discussion ID was incorrect');
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if (! $forum = get_record('forum', 'id', "$discussion->forum")) {
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error("Could not find forum $discussion->forum");
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$post->subject = highlight($strippedsearch, $post->subject);
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$discussion->name = highlight($strippedsearch, $discussion->name);
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$fullsubject = "<a href=\"view.php?f=$forum->id\">".format_string($forum->name,true)."</a>";
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if ($forum->type != 'single') {
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$fullsubject .= " -> <a href=\"discuss.php?d=$discussion->id\">".format_string($discussion->name,true)."</a>";
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if ($post->parent != 0) {
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$fullsubject .= " -> <a href=\"discuss.php?d=$post->discussion&parent=$post->id\">".format_string($post->subject,true)."</a>";
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$post->subject = $fullsubject;
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//Indicate search terms only found in HTML markup
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//Use highlight() with nonsense tags to spot search terms in the
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//actual text content first. fiedorow - 9/2/2005
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$message = highlight($strippedsearch,format_text($post->message, $post->format, NULL, $course->id),
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0,'<fgw9sdpq4>','</fgw9sdpq4>');
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foreach ($searchterms as $searchterm) {
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if (preg_match("/$searchterm/i",$message) && !preg_match('/<fgw9sdpq4>'.$searchterm.'<\/fgw9sdpq4>/i',$message)) {
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$missing_terms .= " $searchterm";
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$message = str_replace('<fgw9sdpq4>','<span class="highlight">',$message);
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$message = str_replace('</fgw9sdpq4>','</span>',$message);
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if ($missing_terms) {
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$strmissingsearchterms = get_string('missingsearchterms','forum');
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$post->message = '<p class="highlight2">'.$strmissingsearchterms.' '.$missing_terms.'</p>'.$message;
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$post->message = $message;
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$fulllink = "<a href=\"discuss.php?d=$post->discussion#$post->id\">".get_string("postincontext", "forum")."</a>";
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//search terms already highlighted - fiedorow - 9/2/2005
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forum_print_post($post, $course->id, false, false, false, false, $fulllink);
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print_string("searchhelp");
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print_simple_box_end();
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if (!$posts = forum_search_posts($searchterms, $course->id, $page*$perpage, $perpage, $totalcount)) {
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print_header_simple("$strsearchresults", "",
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"<a href=\"index.php?id=$course->id\">$strforums</a> ->
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<a href=\"search.php?id=$course->id\">$strsearch</a> -> \"$search\"", "search.search",
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"", "", " ", navmenu($course));
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print_heading(get_string("nopostscontaining", "forum", $search));
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print_simple_box_start("center");
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print_string("searchhelp");
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print_simple_box_end();
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print_footer($course);
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print_header_simple("$strsearchresults", "",
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"<a href=\"index.php?id=$course->id\">$strforums</a> ->
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<a href=\"search.php?id=$course->id\">$strsearch</a> -> \"$search\"", "search.search",
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"", "", $searchform, navmenu($course));
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print_heading("$strsearchresults: $totalcount");
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print_paging_bar($totalcount, $page, $perpage, "search.php?search=$search&id=$course->id&perpage=$perpage&");
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foreach ($posts as $post) {
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if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
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error("Discussion ID was incorrect");
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if (! $forum = get_record("forum", "id", "$discussion->forum")) {
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error("Could not find forum $discussion->forum");
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$post->subject = highlight("$search", $post->subject);
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$discussion->name = highlight("$search", $discussion->name);
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$fullsubject = "<a href=\"view.php?f=$forum->id\">$forum->name</a>";
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if ($forum->type != "single") {
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$fullsubject .= " -> <a href=\"discuss.php?d=$discussion->id\">$discussion->name</a>";
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if ($post->parent != 0) {
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$fullsubject .= " -> <a href=\"discuss.php?d=$post->discussion&parent=$post->id\">$post->subject</a>";
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$post->subject = $fullsubject;
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$fulllink = "<p align=\"right\"><a href=\"discuss.php?d=$post->discussion#$post->id\">".get_string("postincontext", "forum")."</a></p>";
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forum_print_post($post, $course->id, false, false, false, false, $fulllink, $search);
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print_paging_bar($totalcount, $page, $perpage, "search.php?search=".urlencode($search)."&id=$course->id&perpage=$perpage&");
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print_paging_bar($totalcount, $page, $perpage, "search.php?search=".urlencode($search)."&id=$course->id&perpage=$perpage&");
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print_footer($course);
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function forum_print_big_search_form($course) {
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global $words, $subject, $phrase, $user, $userid, $fullwords, $notwords, $datefrom, $dateto;
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print_simple_box(get_string('searchforumintro', 'forum'), 'center', '', '', 'searchbox', 'intro');
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print_simple_box_start("center");
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echo "<script type=\"text/javascript\" language=\"javascript\">\n";
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echo "var timefromitems = ['fromday','frommonth','fromyear','fromhour', 'fromminute'];\n";
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echo "var timetoitems = ['today','tomonth','toyear','tohour','tominute'];\n";
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echo '<form name="search" action="search.php" method="get">';
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echo '<input type="hidden" value="'.$course->id.'" name="id" alt="">';
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echo '<table cellpadding="10" class="searchbox" id="form">';
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echo '<td class="c0">'.get_string('searchwords', 'forum').':</td>';
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echo '<td class="c1"><input type="text" size="35" name="words" value="'.s($words).'" alt=""></td>';
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echo '<td class="c0">'.get_string('searchphrase', 'forum').':</td>';
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echo '<td class="c1"><input type="text" size="35" name="phrase" value="'.s($phrase).'" alt=""></td>';
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echo '<td class="c0">'.get_string('searchnotwords', 'forum').':</td>';
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echo '<td class="c1"><input type="text" size="35" name="notwords" value="'.s($notwords).'" alt=""></td>';
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echo '<td class="c0">'.get_string('searchfullwords', 'forum').':</td>';
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echo '<td class="c1"><input type="text" size="35" name="fullwords" value="'.s($fullwords).'" alt=""></td>';
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echo '<td class="c0">'.get_string('searchdatefrom', 'forum').':</td>';
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echo '<td class="c1">';
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echo '<input name="timefromrestrict" type="checkbox" value="1" alt="'.get_string('searchdatefrom', 'forum').'" onclick="return lockoptions(\'search\', \'timefromrestrict\', timefromitems)" /> ';
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if (empty($dateto)) {
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$datefrom = make_timestamp(2000, 1, 1, 0, 0, 0);
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print_date_selector('fromday', 'frommonth', 'fromyear', $datefrom);
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print_time_selector('fromhour', 'fromminute', $datefrom);
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echo '<input type="hidden" name="hfromday" value="0" />';
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echo '<input type="hidden" name="hfrommonth" value="0" />';
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echo '<input type="hidden" name="hfromyear" value="0" />';
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echo '<input type="hidden" name="hfromhour" value="0" />';
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echo '<input type="hidden" name="hfromminute" value="0" />';
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echo '<td class="c0">'.get_string('searchdateto', 'forum').':</td>';
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echo '<td class="c1">';
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echo '<input name="timetorestrict" type="checkbox" value="1" alt="'.get_string('searchdateto', 'forum').'" onclick="return lockoptions(\'search\', \'timetorestrict\', timetoitems)" /> ';
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if (empty($dateto)) {
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$dateto = time()+3600;
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print_date_selector('today', 'tomonth', 'toyear', $dateto);
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print_time_selector('tohour', 'tominute', $dateto);
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echo '<input type="hidden" name="htoday" value="0" />';
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echo '<input type="hidden" name="htomonth" value="0" />';
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echo '<input type="hidden" name="htoyear" value="0" />';
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echo '<input type="hidden" name="htohour" value="0" />';
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echo '<input type="hidden" name="htominute" value="0" />';
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echo '<td class="c0">'.get_string('searchwhichforums', 'forum').':</td>';
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echo '<td class="c1">';
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choose_from_menu(forum_menu_list($course), 'forumid', '', get_string('allforums', 'forum'), '');
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echo '<td class="c0">'.get_string('searchsubject', 'forum').':</td>';
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echo '<td class="c1"><input type="text" size="35" name="subject" value="'.s($subject).'" alt=""></td>';
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echo '<td class="c0">'.get_string('searchuser', 'forum').':</td>';
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echo '<td class="c1"><input type="text" size="35" name="user" value="'.s($user).'" alt=""></td>';
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echo '<td class="submit" colspan="2" align="center">';
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echo '<input type="submit" value="'.get_string('searchforums', 'forum').'" alt=""></td>';
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echo "<script type=\"text/javascript\">";
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echo "lockoptions('search','timefromrestrict', timefromitems);";
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echo "lockoptions('search','timetorestrict', timetoitems);";
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print_simple_box_end();
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function forum_clean_search_terms($words, $prefix='') {
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$searchterms = explode(' ', $words);
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foreach ($searchterms as $key => $searchterm) {
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if (strlen($searchterm) < 2) {
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unset($searchterms[$key]);
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} else if ($prefix) {
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$searchterms[$key] = $prefix.$searchterm;
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return trim(implode(' ', $searchterms));
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function forum_menu_list($course) {
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$currentgroup = get_current_group($course->id);
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$isteacher = isteacher($course->id);
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if ($isteacher) { // Add teacher forum
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if ($forum = forum_get_course_forum($course->id, 'teacher')) {
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$menu[$forum->id] = format_string($forum->name,true);
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if ($forums = get_all_instances_in_course("forum", $course)) {
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if ($course->format == 'weeks') {
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$strsection = get_string('week');
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$strsection = get_string('topic');
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foreach ($forums as $forum) {
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if (!$isteacher) { // Non-teachers
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if ($forum->type == "teacher") {
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if (!isset($forum->visible)) {
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if (! instance_is_visible("forum", $forum)) {
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if ($cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) {
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$groupmode = groupmode($course, $cm); // Groups are being used
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if (($groupmode == SEPARATEGROUPS) and ($currentgroup === false)) {
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$menu[$forum->id] = format_string($forum->name,true);