Not providing an argument for show crashes the server

[Matt Jones]

If you try to go to a url that requires an argument, and you leave it off like:
http://localhost:3000/users/show/

The server crashes with the stupid error:
FIXME: inner loop threw

[Matt Jones (workhorsy)]

The problem is we are doing this to get the argument:

_user = User.find(to_ulong(_request._params["id"]));

Which is stupid and verbose. It should say something like "id argument required".

[Matt Jones (workhorsy)]

So these things need to be fixed:

1. The server should send the error to the browser when an unhandled exception is thrown.
2. Argument parsing should throw a "missing argument 'id'" exception

[Matt Jones (workhorsy)]

Fixed in trunk,

We now print the exception message, file, and line.