hello colin,
thanks for your reply,
i know what that error means.... but my problem is why this is comming
& how can i achieve my solution.
more details:
1) content_master model:
class ContentMaster < ActiveRecord::Base
has_one :Metadata
end
2) metadata model:
class Metadata < ActiveRecord::Base
belongs_to :ContentMaster, :class_name => 'ContentMaster'
end
3) new action in controller
def new
@content_master = ContentMaster.new
@metadata = @content_master.Metadata.build
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @content_master }
end
end
4) oops same error
undefined method `build' for nil:NilClass
i hope now my problem is more clear
looking forward for help
thank you
On Mar 3, 1:47 pm, Colin Law <[email protected]> wrote:
> On 3 March 2010 18:21, mac <[email protected]> wrote:
>
> > hello,
> > m following
> > railcasthttp://media.railscasts.com/videos/073_complex_forms_part_1.mov
>
> > but i am getting error: undefined method `build' for nil:NilClass
>
> If you look on the line in your code where the error occurs you will
> likely find that you are using something.build. The error is
> indicating the your 'something' is nil.
>
> If you cannot see why it is nil it might be worth your while looking
> at the rails guide on debugging athttp://guides.rubyonrails.org.
> This shows various methods of debugging your code. For example you
> can use ruby-debug to break into your code and inspect your data to
> see what the problem is.
>
> Colin
>
>
>
> > can you please help
>
> > though m using belongs_to and has_one relationship rather then
> > "has_many" is this the problem ???
>
> > if you want i can provide more details
>
> > thank you
>
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