Newbie Question: Howto insert a variable into a new form

Rails
1

I am trying to populate some fields in a new form before I display it.

I know that if I do this: @mapper = Mapper.new(:consultant_id => ‘Fred’)

It works and Fred is displayed in the form but in this case
consultant_id is stored as a variable in sessions as it is assigned
when the consultant logs in.
So what I want to do is substitute “Fred” with my session variable:
session[:consultant_id]

If I do this: @mapper = Mapper.new(:consultant_id =>
‘#{session[:consultant_id]}’)

The code appears in the form not the name. I have tried a number of
other ways but they all caused the app to bomb.
Can someone please show me the correct way to do this.

Thanks,

Paul Thompson.

2

Have you tried just the following? I’ve never use Mapper, so I don’t
know of any caveats that might apply to it specifically

@mapper = Mapper.new(:consultant_id => session[:consultant_id])

On Jul 15, 3:40 pm, “Paul Jonathan T.” [email protected]

3

Thanks and yes I have tried that. It does not bomb but nothing appears
when the form is displayed either :frowning:

2008/7/16 Sean C. Hess [email protected]:

4

What happens if you put the following before your code?

<%= :consultant_id %> - <%= session[:consultant_id] %>

Just making sure the variables are set the way you think they are.

On Tue, Jul 15, 2008 at 3:56 PM, Paul Jonathan T.
[email protected]

5

Sean, thanks for your help. Your first suggestion: @mapper =
Mapper.new(:consultant_id => session[:consultant_id]) works just fine.
What happened is that I save the data to sessions via a before filter
in application.rb Somehow I forgot to run the filter and this came to
light when your second suggestion failed to work.

Thanks for the help, I am not a programming noob but still very much a
noob to rails and object orientated programming. If I were confident
in my code, I would likely have picked up the problem earlier but not
being sure about the code, when it failed I just zeroed in on it.

Thank you once again. It is guys like you that make the rails
community great thing it is today.

2008/7/16 Sean C. Hess [email protected]:

6

Thanks for the flattery. I’m a newbie myself, so it’s good to hear I
could
help somebody :smiley:
~sean

On Tue, Jul 15, 2008 at 4:23 PM, Paul Jonathan T.
[email protected]