/**
* Return an array of stored tags
*
* @return array array of stored tags (string)
*/
public function getTags()
{
$keys = array();
$map = new MongoCode('function() {
for ( var key in this.tags) {
emit(this.tags[key], null);
}
}');
$reduce = new MongoCode('function(key, tmp) {
return null;
}');
$result = $this->_database->command(array("mapreduce" => $this->_options['collection'], "map" => $map, "reduce" => $reduce, "out" => array("inline" => true)));
foreach ($result['results'] as $item) {
$keys[] = $item['_id'];
}
return $keys;
}
