Rails - Sep 2008 - Module that adds same class & instance methods

I am writing a plugin that adds similar methods to a class and
instances of that class.  It is mostly a convenience and exercise to
me.

The idea behind the module is to tell the model what the name of its
icon should be.  This way I can call

class MyModel << AR::Base
  has_icons "flower"
end

<%= image_tag "/images/#{@my_model.icon_edit}.png" %>

and get an image tag for /images/flower_edit.png

Sometimes I don''t have an instance of MyModel so I want to be able to
call EG: MyModel.icon_add

The code is here

http://pastie.org/264686

but there is something wrong when I use it in conjunction with
RedCloth before_save pre-processing.

class Script < ActiveRecord::Base

  before_save :transform_intro

  has_icons

private

  def transform_intro
    unless intro_plain.blank?
      self.intro = RedCloth.new(intro_plain, "filter_html" ).to_html
    end
  end

end


0 malfunction % ./script/console
Loading development environment (Rails 2.1.0)
>> Script.icon_add
=> "script_add"
>> s = Script.new
=> #<Script id: nil, creator: "", codebase: "",
intro_plain: nil,
intro: nil, created_at: nil, updated_at: nil>
>> s.icon_add
=> "script_add"
>> s = Script.new( :intro_plain => "Hi there" )
ArgumentError: wrong number of arguments (1 for 0)
        from (irb):1:in `initialize''
        from (irb):1:in `new''
        from (irb):1

Can anyone help me out with the module or my initialize method.

Thanks,
--Dean
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Dean wrote:
>>> s = Script.new( :intro_plain => "Hi there" )
> ArgumentError: wrong number of arguments (1 for 0)
>         from (irb):1:in `initialize''
>         from (irb):1:in `new''
>         from (irb):1
> 
> Can anyone help me out with the module or my initialize method.
All you should need is:

   def initialize(attributes = nil)
     super
     # Add SharedMethods to the instance
     self.extend HasIcons::SharedMethods
   end

-- 
Rails Wheels - Find Plugins, List & Sell Plugins - http://railswheels.com


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On Sep 3, 8:56 am, Mark Reginald James
<m...-ejQy8aU/RJumpXlQD71PVDSf8X3wrgjD@public.gmane.org>
wrote:
> Dean wrote:
> >>> s = Script.new( :intro_plain => "Hi there" )
> > ArgumentError: wrong number of arguments (1 for 0)
> >         from (irb):1:in `initialize''
> >         from (irb):1:in `new''
> >         from (irb):1
>
> > Can anyone help me out with the module or my initialize method.
>
> All you should need is:
>
>    def initialize(attributes = nil)
>      super
>      # Add SharedMethods to the instance
>      self.extend HasIcons::SharedMethods
>    end
>
> --
> Rails Wheels - Find Plugins, List & Sell Plugins
-http://railswheels.com
Thanks Mark. Overlooked that constructor.

--Dean
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