Rails - Jun 2009 - Form validation on non-CRUD activities

Hi there,

I''m relativity new to Rails (I''ve been eying it for some time,
though). I''m reasonably familiar with Ruby''s syntax.

When I pick up a new language, I like to make a simple blog. I''m
focusing on the authentication at the moment. I am well aware of the
existing plugins out there, but since this application will never see
the light of day and I learning by rolling my own.

Now, let''s say I have a login form, how do I validate that?
I''m not
saving into  a model, or anything like that. At this stage, I''m just
using a form_tag, and doing simple if params[:username] == ''''
in the
controller. Very ugly indeed.

What is the best way to validate a form (and get the nice error
messages, like when you are scaffolding) when you are not necessarily
saving data?

Cheers.
Tom.

Here''s what i use -
http://github.com/staugaard/active_record_base_without_table/tree/master

-
Maurício Linhares
http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/ (en)



On Mon, Jun 1, 2009 at 5:20 AM, Tom R
<asubstitute-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Hi there,
>
> I''m relativity new to Rails (I''ve been eying it for some
time,
> though). I''m reasonably familiar with Ruby''s syntax.
>
> When I pick up a new language, I like to make a simple blog. I''m
> focusing on the authentication at the moment. I am well aware of the
> existing plugins out there, but since this application will never see
> the light of day and I learning by rolling my own.
>
> Now, let''s say I have a login form, how do I validate that?
I''m not
> saving into  a model, or anything like that. At this stage, I''m
just
> using a form_tag, and doing simple if params[:username] ==
'''' in the
> controller. Very ugly indeed.
>
> What is the best way to validate a form (and get the nice error
> messages, like when you are scaffolding) when you are not necessarily
> saving data?
>
> Cheers.
> Tom.
>
> >
>