I have a class User() that throw exceptions when attributes are incorrectly set. I am currently passing the exceptions from the models through the controller to the templates by essentially catching exceptions two times for each variable.

Is this a correct way of doing it? Is there a better (but still simple) way? I prefer not to use any third party error or form handlers due to the extensive database queries we already have in place in our classes.

Furthermore, how can I "stop" the chain of processing in the class if one of the values is invalid? Is there like a "break" syntax or something?

Thanks.

>>> u = User()
>>> u.name = 'Jason Mendez'
>>> u.password = '1234'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "topic/model/user.py", line 79, in password
    return self._password
ValueError: Your password must be greater than 6 characters

In my controller "register," I have:

class RegisterController(BaseController):

    def index(self):
        if request.POST:
            c.errors = {}
            u = User()

            try:
                u.name = c.name = request.POST['name']
            except ValueError, error:
                c.errors['name'] = error

            try:
                u.email = c.email = request.POST['email']
            except ValueError, error:
                c.errors['email'] = error

            try:
                u.password = c.password = request.POST['password']
            except ValueError, error:
                c.errors['password'] = error

            try:
                u.commit()
            except ValueError, error:
                pass

        return render('/register.mako')