Force displaying 404 page in production environment

Hi,

I'm having trouble displaying the 404 page when an exception
occurs.
In my controller I have

user
= User.find_by_username(params[:username])

and in view I have

<%= user.username's page %>

If params[:username] is invalid or does not exist,
NoMethodError
exception is displayed, hence 500 page in production
environment.
However, I want this error to be 400 Page Not Found error
instead.
How can I accomplish that?  I don't want to use redirect_to
'/
404.html' because I want the URL to remain the same.  Any
ideas?

Thanks in advance.
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How about something like this in the controller:

def controller_method
  user = User.find_by_username(params[:username])
  username = user.username # raises NoMethodError when
user.nil?
rescue NoMethodError
  render :file => "/path/to/404.html"
end

James

On Jan 1, 2008 5:28 AM, Will <willycheunggmail.com> wrote:
>
> Hi,
>
> I'm having trouble displaying the 404 page when an
exception occurs.
> In my controller I have
>
> user = User.find_by_username(params[:username])
>
> and in view I have
>
> <%= user.username's page %>
>
> If params[:username] is invalid or does not exist,
NoMethodError
> exception is displayed, hence 500 page in production
environment.
> However, I want this error to be 400 Page Not Found
error instead.
> How can I accomplish that?  I don't want to use
redirect_to '/
> 404.html' because I want the URL to remain the same. 
Any ideas?
>
> Thanks in advance.
> >
>

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Did my suggestion work for you?

James

On Jan 1, 5:28 am, Will <willyche...gmail.com> wrote:
> Hi,
>
> I'm having trouble displaying the 404 page when an
exception occurs.
> In my controller I have
>
> user = User.find_by_username(params[:username])
>
> and in view I have
>
> <%= user.username's page %>
>
> If params[:username] is invalid or does not exist,
NoMethodError
> exception is displayed, hence 500 page in production
environment.
> However, I want this error to be 400 Page Not Found
error instead.
> How can I accomplish that?  I don't want to use
redirect_to '/
> 404.html' because I want the URL to remain the same.
 Any ideas?
>
> Thanks in advance.
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