Rails - Aug 2006 - How to capture the data entered in a web page in RoR

Hi, iam a newbie to rails , i wanna know how can i capture data entered 
in a web page by a user

For example, to obtain the data entered in a text field  in a JSP in 
Java we write request.getParameter("textfieldname")
similarly for any form element, we use this method to get the entered 
data in the web page

Like wise what is the code in Ruby to capture this ? and where should i 
write this code ? Is it in model or in controller?

i am aware that ruby automatically maps the form element names with that 
of the database columns names and save accordingly, but if i need to 
display these values
before saving them in the database, how can i capture them in the 
controller before the save method is called?

Thanks in Advance

Sathya


-- 
Posted via http://www.ruby-forum.com/.

Sathya,

Use the params array like this:
params[:textfieldname]
in the controller or view.  It is less likely you''d access this in a
model.

Hope this helps,
Zack

On 8/8/06, Sathya <sathya.kishore@lgcnsglobal.com>
wrote:
>
> Hi, iam a newbie to rails , i wanna know how can i capture data entered
> in a web page by a user
>
> For example, to obtain the data entered in a text field  in a JSP in
> Java we write request.getParameter("textfieldname")
> similarly for any form element, we use this method to get the entered
> data in the web page
>
> Like wise what is the code in Ruby to capture this ? and where should i
> write this code ? Is it in model or in controller?
>
> i am aware that ruby automatically maps the form element names with that
> of the database columns names and save accordingly, but if i need to
> display these values
> before saving them in the database, how can i capture them in the
> controller before the save method is called?
>
> Thanks in Advance
>
> Sathya
>
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

http://www.rubyonrails.org/docs

On 09/08/06, Sathya <sathya.kishore@lgcnsglobal.com>
wrote:
>
> Hi, iam a newbie to rails , i wanna know how can i capture data entered
> in a web page by a user
>
> For example, to obtain the data entered in a text field  in a JSP in
> Java we write request.getParameter("textfieldname")
> similarly for any form element, we use this method to get the entered
> data in the web page
>
> Like wise what is the code in Ruby to capture this ? and where should i
> write this code ? Is it in model or in controller?
>
> i am aware that ruby automatically maps the form element names with that
> of the database columns names and save accordingly, but if i need to
> display these values
> before saving them in the database, how can i capture them in the
> controller before the save method is called?
>
> Thanks in Advance
>
> Sathya
>
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Indeed these are essentials and you should RTFM.
>From the manual you need to get how to display a form in rails so that it
indeed gets mapped to the AR-Model.

Let''s say you''ve got an input form for a User. Then, if you
made up the form
according to the rails convention you are able to get a hash of the input by
using params[:user] in the controller.

Rails is so well documented - at first you might have a look at the videos -
that you shouldn''t have any problems, especially when you were into web
development with java.

Cheers,
Jan
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