public function where($column, $operator, $value)
    {
        $capsule = $this->_database->getCapsule();

        if (empty($column)) {
            throw new \Exception('You must provide the column to look up!');
        }
        if (empty($operator)) {
            throw new \Exception('You must provide an operator!');
        }
        if (empty($value)) {
            throw new \Exception('You must provide the value!');
        }

        $this->_model = $capsule->table($this->table)->where($column, $operator, $value);

        return $this->_model;
    }