Rails - Oct 2005 - Problem on request.post?

I have an action that is used for first render and is recalled on
post.  On first render it works fine, but when the view is re-posted to
it cannot find my instance variable ''ie. @adhesive''.

This is the error I get:
   undefined method `cost'' for nil:NilClass
   <p><%= number_to_currency @adhesive.cost %> permit</p>

The code in question is below.

def type

    person = session[:person]
    @permit = Permit.new

    @adhesive = Price.adhesive(person.status,person.semester)
    @carpool  = Price.carpool(person.status,person.semester)
    @extra    = Price.extra(person.semester)

    @mccaslin = person.mccaslin?

    if request.post?
      person = session[:person]
      person.campus = params[:campus]
      person.permit = Permit.new(params[:permit])

      if person.save
        render :text => "WORKED"
      else
        flash[:notice] = "There was a problem with your submission.
Please try again."
        render :text => "FAILED"
      end
  end
end

Thanks,
Robert

On 5.10.2005, at 19.38, Robert Boone wrote:
>   I have an action that is used for first render and is recalled on
> post.  On first render it works fine, but when the view is re- 
> posted to
> it cannot find my instance variable ''ie. @adhesive''.
>
> This is the error I get:
>    undefined method `cost'' for nil:NilClass
>    <p><%= number_to_currency @adhesive.cost %> permit</p>
Robert,

I don''t exactly know what the reason is, but the above indicates that  
you''re rendering an rhtml view. However, the code inside "if  
request.post?" never renders a template (it only uses render with  
the :text parameter), so it looks to me like that code is never  
executed. So could you post both the template you''re using with the  
action and the whole error, including the file where it came from?  
Then it''s a tad easier to see what''s going on.

//jarkko
>
> The code in question is below.
>
> def type
>
>     person = session[:person]
>     @permit = Permit.new
>
>     @adhesive = Price.adhesive(person.status,person.semester)
>     @carpool  = Price.carpool(person.status,person.semester)
>     @extra    = Price.extra(person.semester)
>
>     @mccaslin = person.mccaslin?
>
>     if request.post?
>       person = session[:person]
>       person.campus = params[:campus]
>       person.permit = Permit.new(params[:permit])
>
>       if person.save
>         render :text => "WORKED"
>       else
>         flash[:notice] = "There was a problem with your submission.
> Please try again."
>         render :text => "FAILED"
>       end
>   end
> end
>
> Thanks,
> Robert
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>
>
--
Jarkko Laine
http://jlaine.net
http://odesign.fi



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