Rails - Jul 2005 - RE: hide 'id' field in 'edit' view again (afterHowToExtendScaffolding)?

> After following the instructions on
> http://wiki.rubyonrails.com/rails/show/HowToExtendScaffolding there appears
> an ''id'' edit field on my edit webpaqes. Since this is the
primary key of the
>table, I really don''t want a user to be able to edit it :)
Make sure that @scaffold_fields is defined for the model and that it does not
include "id".  If you don''t define it, the extended
scaffolding uses all columns that are in the database.  See the example on that
page:

class Album < ActiveRecord::Base
  belongs_to :artist
  @scaffold_fields = %w''artist name releasedate rating''
end





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> [mailto:rails-bounces-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org]
Namens Jeremy Evans
> > After following the instructions on > 
> > http://wiki.rubyonrails.com/rails/show/HowToExtendScaffolding there 
> > appears > an ''id'' edit field on my edit webpaqes.
Since this is the
> > primary key of the >table, I really don''t want a user to
be able to
> > edit it :)
> Make sure that @scaffold_fields is defined for the model and 
> that it does not include "id".  If you don''t define it,
the
> extended scaffolding uses all columns that are in the 
> database.  See the example on that page: 
> class Album < ActiveRecord::Base   belongs_to :artist   
> @scaffold_fields = %w''artist name releasedate rating'' end
Thanks! That solved my problem. Now I also know what I did wrong too.

I was being ''clever'' and did : 
@scaffold_fields = column_names - %w''location_id'' +
%w''location''
Where location_id refers to :locations.

I did this because I didn''t want to hardcode the other fields of my
webpage,

but after reading your comments I understand ''id'' is being
present in
column_names.

So now I did the following:
@scaffold_fields = column_names - %w''location_id id'' +
%w''location''

And it works ok.

However, I am left with some other questions:

* I assume that the create scaffold page knows itself about id and as a
result 
  doesn''t show it (regardless whether id is present in
@scaffold_fields)?

* I have to change location_id and location in @scaffold_fields, I imagine
that 
  this knowledge can also be build in the HowToExtendScaffolding code)?
---
Jeroen Janssen