Extension for mFilter2 for Tagger

mFilter2Tagger.class.php

<?php
class TaggerFilter extends mse2FiltersHandler {
	public function getTaggerValues(array $groupids, array $ids) {
		$filters = array();
		$q = $this->modx->newQuery('TaggerTagResource');
		$q->innerJoin('TaggerTag', 'TaggerTag', '`TaggerTag`.`id` = `TaggerTagResource`.`tag` AND `TaggerTag`.`group` IN ("' . implode('","', $groupids).'")');
		$q->select('TaggerTagResource.resource, TaggerTag.id, TaggerTag.group');
		$q->where(array('TaggerTagResource.resource:IN' => $ids));
		$tstart = microtime(true);
		if ($q->prepare() && $q->stmt->execute()) {
			$this->modx->queryTime += microtime(true) - $tstart;
			$this->modx->executedQueries++;
			while ($row = $q->stmt->fetch(PDO::FETCH_ASSOC)) {
				foreach ($row as $k => $v) {
					$v = trim($v);
					if ($v == '' || $k == 'resource' || $k == 'group') {continue;}
					if (isset($filters[$row['group']][$v])) {
						$filters[$row['group']][$v][] = $row['resource'];
					}
					else {
						$filters[$row['group']][$v] = array($row['resource']);
					}
				}
			}
		}
		return $filters;
	}
	function buildTaggerFilter(array $values) {
        $tagIDs = array_keys($values);
        $results = array();
        $q = $this->modx->newQuery('TaggerTag', array('id:IN' => $tagIDs));
        $q->select('id,tag,alias,group');
        if ($q->prepare() && $q->stmt->execute()) {
            	$names = array();
	    	$alias = array();
		$group = array();
        	while ($row = $q->stmt->fetch(PDO::FETCH_ASSOC)) {
                	$names[$row['id']] = $row['tag'];
	            	$alias[$row['id']] = $row['alias'];
			$group[$row['id']] = $row['group'];
            	}
	        foreach ($values as $tagID => $ids) {
	                $title = !isset($names[$tagID]) ? $this->modx->lexicon('mse2_filter_boolean_no') : $names[$tagID];
	                $results[$title] = array(
		                'title' => $title,
		                'value' => $tagID,
		                'resources' => $ids
	                );
	    	}
        }
	ksort($results);
        return $results;
    }
}

Hi there, do you have any more details about how to use this, where to integrate it, and how to call it in the mFilter2 snippet? Would really appreciate your input! Thanks!

System settings
extension_packages

you need to add a package «tagger»
{"tagger":{"path":"[[++core_path]]components/tagger/model/"}}