On Mon, Sep 29, 2008 at 11:36 PM, recursor <[EMAIL PROTECTED]> wrote:
> I want to do some things with a class outside my app block, but I cannot get
> it to work. I even went so far as
> to copy the example given in http://help.shoooes.net/Rules.html under the
> 'Block Redirection' section and try
> to use it:
>
> class Messenger
> def initialize(stack)
> @stack = stack
> end
> def add(msg)
> @stack.app do
> @stack.append do
> para msg
> end
> end
> end
> end
>
> ---snip-- (below is code that I added)
>
> Shoes.app do
> @msg = Messenger.new(stack)
> button 'go' do
> @msg.add "dy-no-mite"
> end
> end
>
> The 'add' method should retrieve the app object from the stack object, but
> when I do an alert @stack.app.inspect, I get:
>
> (Shoes)
>
> and the @stack.append does not work. Any thoughts?
Aha. So, after fully reading the Rules, I developed a theory that the
example shown there is all wrong because inside the app() block, self
is changed to your app, which has no @stack instance. Running your
sample code, that seems confirmed with the error "undefined method
'append' for nil:NilClass" shown in the console.
This works:
class Messenger
def initialize(stack)
@stack = stack
end
def add(msg)
@stack.app do
@messages.append do
para msg
end
end
end
end
Shoes.app do
@messages = stack
@messenger = Messenger.new @messages
button "go" do
@messenger.add "dy-no-mite"
end
end
--
Seth Thomas Rasmussen
http://greatseth.com
