/**
  *
  * Mongo doesn't allow full stops (.) in keys as it is reserved, so, 
  * we replace with &46; where required. This will most likely only
  * happen in extensions.
  *
  * @param array $statement A full statement array
  *
  * @return array $statement
  *
  */
 private function replaceFullStop($statement)
 {
     $statement = \app\locker\helpers\Helpers::replaceFullStop($statement);
     return $statement;
 }