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New faster filters!
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moodler
parent
facc743aa2
commit
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@ -1,147 +1,30 @@
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<?php // $Id$
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//This function provides automatic linking to
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//resources 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. Enjoy! :-)
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//Williams, Stronk7, Martin D
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function resource_filter($courseid, $text) {
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global $CFG;
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if (empty($courseid)) {
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$courseid = SITEID;
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}
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/// The resources are sorted from long to short so longer ones can be linked first.
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switch ($CFG->dbtype) {
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case 'postgres7':
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$as = 'as';
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break;
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case 'mysql':
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$as = '';
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break;
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}
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if ($resources = get_records('resource', 'course', $courseid, 'CHAR_LENGTH(name) DESC', 'id,name')) {
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///sorting by the lenght of the title in order to assure that large resources
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///could be linked first, if they exist in the text to parse
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$links = array();
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switch ($CFG->dbtype) {
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case "postgres7":
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case "mysql":
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$rbylenght = "CHAR_LENGTH(name) desc";
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break;
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default:
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$rbylenght = "";
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break;
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}
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$resources = get_records_select("resource", "course = $courseid", "$rbylenght");
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if (!empty($resources)) {
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$cm = '';
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foreach ($resources as $resource) {
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if (!$cm = get_coursemodule_from_instance("resource", $resource->id, $courseid)) {
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$cm->id = 1;
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}
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$title = strip_tags($resource->name);
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$href_tag_begin = "<a class=\"autolink\" title=\"$title\" href=\"$CFG->wwwroot/mod/resource/view.php?id=$cm->id\">";
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$currentname = $resource->name;
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if ($currentname = trim($currentname)) {
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//Avoid integers < 1000 to be linked. See bug 1441.
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$intcurrent = intval($currentname);
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if (!(!empty($intcurrent) && strval($intcurrent) == $currentname && $intcurrent < 1000)) {
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$text = resource_link_names($text,$currentname,$href_tag_begin, "</a>");
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}
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}
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$currentname = trim($resource->name);
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$links[] = new filterobject($currentname,
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'<a class="autolink" title="'.strip_tags($currentname).'" href="'.
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$CFG->wwwroot.'/mod/resource/view.php?r='.$resource->id.'">',
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'</a>', false, true);
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}
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$text = filter_phrases($text, $links); // Look for all these links in the text
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}
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return $text;
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}
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function resource_link_names($text,$name,$href_tag_begin,$href_tag_end = "</a>") {
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$list_of_words_cp = strip_tags($name);
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$list_of_words_cp = trim($list_of_words_cp,'|');
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$list_of_words_cp = trim($list_of_words_cp);
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$list_of_words_cp = preg_quote($list_of_words_cp,'/');
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$invalidprefixs = "([a-zA-Z0-9])";
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$invalidsufixs = "([a-zA-Z0-9])";
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//Avoid seaching in the string if it's inside invalidprefixs and invalidsufixs
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$words = array();
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$regexp = '/'.$invalidprefixs.'('.$list_of_words_cp.')|('.$list_of_words_cp.')'.$invalidsufixs.'/is';
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preg_match_all($regexp,$text,$list_of_words);
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foreach (array_unique($list_of_words[0]) as $key=>$value) {
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$words['<*'.$key.'*>'] = $value;
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}
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if (!empty($words)) {
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$text = str_replace($words,array_keys($words),$text);
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}
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//Now avoid searching inside the <nolink>tag
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$excludes = array();
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preg_match_all('/<nolink>(.+?)<\/nolink>/is',$text,$list_of_excludes);
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foreach (array_unique($list_of_excludes[0]) as $key=>$value) {
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$excludes['<+'.$key.'+>'] = $value;
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}
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if (!empty($excludes)) {
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$text = str_replace($excludes,array_keys($excludes),$text);
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}
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//Now avoid searching inside the <span class="nolink">tag
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// This style doesn't break in editor. See bug #2428
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$nolinkspan = array();
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preg_match_all('/<span class=\"nolink\">(.+?)<\/span>/is',$text,$list_of_span);
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foreach (array_unique($list_of_span[0]) as $key=>$value) {
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$nolinkspan['<%'.$key.'%>'] = $value;
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}
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if (!empty($nolinkspan)) {
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$text = str_replace($nolinkspan,array_keys($nolinkspan),$text);
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}
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//Now avoid searching inside links
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$links = array();
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preg_match_all('/<a[\s](.+?)>(.+?)<\/A>/is',$text,$list_of_links);
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foreach (array_unique($list_of_links[0]) as $key=>$value) {
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$links['<@'.$key.'@>'] = $value;
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}
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if (!empty($links)) {
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$text = str_replace($links,array_keys($links),$text);
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}
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//Now avoid searching inside every tag
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$final = array();
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preg_match_all('/<(.+?)>/is',$text,$list_of_tags);
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foreach (array_unique($list_of_tags[0]) as $key=>$value) {
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$final['<|'.$key.'|>'] = $value;
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}
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if (!empty($final)) {
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$text = str_replace($final,array_keys($final),$text);
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}
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$text = preg_replace('/('.$list_of_words_cp.')/is', $href_tag_begin.'$1'.$href_tag_end,$text);
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//Now rebuild excluded areas
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if (!empty($final)) {
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$text = str_replace(array_keys($final),$final,$text);
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}
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if (!empty($links)) {
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$text = str_replace(array_keys($links),$links,$text);
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}
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if (!empty($excludes)) {
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$text = str_replace(array_keys($excludes),$excludes,$text);
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}
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if (!empty( $nolinkspan)) {
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$text = str_replace(array_keys($nolinkspan),$nolinkspan,$text);
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}
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if (!empty($words)) {
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$text = str_replace(array_keys($words),$words,$text);
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}
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return $text;
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}
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?>
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@ -3,22 +3,36 @@
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require_once("../../config.php");
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require_once("lib.php");
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require_variable($id); // Course Module ID
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$id = optional_param('id', 0, PARAM_INT); // Course Module ID
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$r = optional_param('r', 0, PARAM_INT); // Resource
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if (!empty($CFG->forcelogin)) {
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require_login();
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}
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if (! $cm = get_record("course_modules", "id", $id)) {
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error("Course Module ID was incorrect");
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if ($r) { // Two ways to specify the resource
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if (! $resource = get_record('resource', 'id', $r)) {
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error('Resource ID was incorrect');
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}
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if (! $cm = get_coursemodule_from_instance('resource', $resource->id, $resource->course)) {
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error('Course Module ID was incorrect');
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}
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} else if ($id) {
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if (! $cm = get_record('course_modules', 'id', $id)) {
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error('Course Module ID was incorrect');
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}
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if (! $resource = get_record('resource', 'id', $cm->instance)) {
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error('Resource ID was incorrect');
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}
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} else {
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error('No valid parameters!!');
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}
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if (! $resource = get_record("resource", "id", $cm->instance)) {
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error("Resource ID was incorrect");
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}
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require ("$CFG->dirroot/mod/resource/type/$resource->type/resource.class.php");
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$resourceclass = "resource_$resource->type";
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require ($CFG->dirroot.'/mod/resource/type/'.$resource->type.'/resource.class.php');
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$resourceclass = 'resource_'.$resource->type;
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$resourceinstance = new $resourceclass($cm->id);
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$resourceinstance->display();
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