Rails - Jul 2005 - introspection in rails

I''m trying to improve the scaffold generator, and one thing
I''d like is
to be able to check a record''s name against the class, and put the 
contents of  validates_inclusion_of as a dropdown list in the view. Is 
there some way to do this with introspection? Like

	def default_input_block
		Proc.new { |record, column| <<-END_ROW
			#{get_input(record, column)}
		END_ROW
		}
	end #	default_input_block

	def get_input(record, column)
		if @classes[record].validates_inclusion_of != nil
			select(record, column.name, record.enum)
		end
	end

Except it would work ;)
___________________
Ben Jackson
Diretor de Desenvolvimento

+55 (21) 9997-0593
ben-p14LI7ZcAE/pVLaUnt/cCQC/G2K4zDHf@public.gmane.org
http://www.incomumdesign.com

On Jul 3, 2005, at 1:32 PM, Ben Jackson wrote:
> I''m trying to improve the scaffold generator, and one thing
I''d
> like is to be able to check a record''s name against the class, and
> put the contents of  validates_inclusion_of as a dropdown list in  
> the view. Is there some way to do this with introspection? Like
>
For some reason, I''m just not quite getting what you''re trying
to
do.  Is it that you want to be able to configure the scaffold  
generator from a point-and-click kind of interface?

Duane Johnson
(canadaduane)

Basically I''m looking for a way to get a drop-down list for an 
enum-style field (since enum is not supported by AR, this amounts to 
using a varchar field and calling validates_inclusion_of in the model). 
Instead of a blank input in the scaffold, I''d like to call a get_input 
method (see below) to read the enum created in validates_inclusion_of 
and use it to create the drop-down. Is this possible?

My code looks like this:

class MyScaffoldingSandbox < ScaffoldingSandbox
     include ActionView::Helpers::FormHelper

	def default_input_block
		Proc.new { |record, column| <<-END_ROW
			<div class="row">
				<span class="form">#{get_input(record, column)}</span>
			</div>
		END_ROW
		}
	end #	default_input_block
	
	def get_input record, column
	    if (column.limit == 1 and column.type == :string)
	      return check_box(record, column.name)
	    end
	    if (column.type == :text)
	      return text_area(record, column.name)
	    end
	    return input(record, column.name)
	end

end # class MyScaffoldingSandbox

- Ben

On Jul 3, 2005, at 7:46 PM, Duane Johnson wrote:
>
> On Jul 3, 2005, at 1:32 PM, Ben Jackson wrote:
>> I''m trying to improve the scaffold generator, and one thing
I''d like
>> is to be able to check a record''s name against the class, and
put the
>> contents of  validates_inclusion_of as a dropdown list in the view. 
>> Is there some way to do this with introspection? Like
>>
>
> For some reason, I''m just not quite getting what you''re
trying to do.
> Is it that you want to be able to configure the scaffold generator 
> from a point-and-click kind of interface?
>
> Duane Johnson
> (canadaduane)
>
>
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