Form questions

I have a very simple form that looks allows an input for an error code
and then give the show page from the scaffolding if the error code is
in the database and a notification on the list page, again from the
scaffolding if not.

Here’s the form:

Find error

<%= start_form_tag :action => 'search'%>

<%= text_field 'message', 'code' %>

<%= submit_tag 'Search' %> <%= end_form_tag %>

<%= link_to ‘Back’, :action => ‘list’ %>

Here’s the method, search in the controller

def search
@message = Message.find_by_code(code)
if @message.nil?
#render :action => ‘find’
flash[:notice] = “Code #{code} not found!\n Please choose a
code from this list”
flash[:error] = ‘Boom’
redirect_to :action => ‘list’
redirect_to :action => ‘show’, :id => @message

It works except for the fact that flash[:error] does not display and
in fact if I try :error for the first flash, it will not display.

Aside from this problem is their a better way to do this. I have the
agile book and googled quite a bit to finally find how to pass
non-database elements from a form to the controller, but I’ve lost the
link. I’m new to web apps so I don’t know what the accepted practice
is for something like this so any helpful advise or criticism is


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  • Sir George Trevelyn

Hi, Vapid,

did you change anything on the scaffolded layout. In your view/layouts
folder is there a scaffold layout for the controller? And in this
layout: Is
there display code for the flash notice?

Jan P.

Doesn’t look like you’re doing anything with flash[:error] in your view.
flash[:notice] shows up because the basic layout generated by scaffold

<%= flash[:notice] %>

in there… Try putting that with :error instead… bet yah it’ll work.


PS: I actually saved the model object in the flash on error, cuz that
has all the errors
in it. Then I can use error_messages_for in the view.

I did everything in the generated controller, so I didn’t change the
layout. I’m not sure about your last question? I just call flash.
With :notice it works, with :error it does not. I’ll double check my
Agile book but from what you are saying I didn’t supply the needed
display code for error.

On 3/2/06, Jan P. [email protected] wrote:

On 2/27/06, Vapid Babble [email protected] wrote:

@message = Message.find_by_code(code)

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