public function getFirstError($attribute = null)
    {
        if (!$this->errors) {
            return null;
        } elseif (is_null($attribute)) {
            $errors = $this->getErrors();
            reset($errors);
            $firstError = current($errors);
            $arrayKeys = array_keys($firstError);
            $error = $firstError[$arrayKeys[0]];
            return $error;
        }

        return parent::getFirstError($attribute);
    }
public function getFirstError($attribute = null)
    {
        if (!$this->errors) {
            return null;
        } elseif (is_null($attribute)) {
            $errors = $this->getErrors();
            reset($errors);
            $firstError = current($errors);
            $arrayKeys = array_keys($firstError);
            $error = $firstError[$arrayKeys[0]];
            return $error;
        }

        return parent::getFirstError($attribute);
    }
Returns the first error in the model
@author Olawale Lawal <wale@cottacush.com>
@param string $attribute
@return string