Rails - Jul 2008 - Newbie Question: Howto insert a variable into a new form

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.

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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 Thompson"
<rails...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> 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.
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Thanks and yes I have tried that. It does not bomb but nothing appears
when the form is displayed either :-(

2008/7/16 Sean Clark Hess
<seanhess-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
>
> 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])
>
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What happens if you put the following before your code?
<div><%= :consultant_id %> - <%= session[:consultant_id]
%></div>

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



On Tue, Jul 15, 2008 at 3:56 PM, Paul Jonathan Thompson
<rails001-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Thanks and yes I have tried that. It does not bomb but nothing appears
> when the form is displayed either :-(
>
> 2008/7/16 Sean Clark Hess
<seanhess-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> >
> > 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])
> >
>
> >
>
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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 Clark Hess
<seanhess-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> What happens if you put the following before your code?
> <div><%= :consultant_id %> - <%= session[:consultant_id]
%></div>
> Just making sure the variables are set the way you think they are.
>
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Thanks for the flattery.  I''m a newbie myself, so it''s good to
hear I could
help somebody :D
~sean

On Tue, Jul 15, 2008 at 4:23 PM, Paul Jonathan Thompson
<rails001-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> 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 Clark Hess
<seanhess-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> > What happens if you put the following before your code?
> > <div><%= :consultant_id %> - <%=
session[:consultant_id] %></div>
> > Just making sure the variables are set the way you think they are.
> >
>
> >
>
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