Locker\Repository\Statement\EloquentReader::where PHP Method

    protected function where(Options $opts)
    {
        $scopes = $opts->getOpt('scopes');
        $query = (new $this->model())->where('lrs_id', new \MongoId($opts->getOpt('lrs_id')));
        if (in_array('all', $scopes) || in_array('all/read', $scopes) || in_array('statements/read', $scopes)) {
            // Get all statements.
        } else {
            if (in_array('statements/read/mine', $scopes)) {
                $query = $query->where('client_id', $opts->getOpt('client')->_id);
            } else {
                throw new Exceptions\Exception('Unauthorized request.', 401);
            }
        }
        return $query;
    }