Dave,
You probably need to explicitly set the instance variable on the page by
overriding process_page. Here's a sample (untested):
Page.send :attr_accessor, :my_instance_variable
SiteController.class_eval do
def process_page_with_instance_var(page)
page.my_instance_variable = @my_instance_variable
process_page_without_instance_var(page)
end
alias_method_chain :process_page, :instance_var
end
From that, your instance variable would be defined on the global page
(tag.globals.page).
I've been looking through the Rails source, but I don't see anywhere
where the request is given a link back to the controller it's created
for. You may be out of luck there.
Cheers,
Sean
Dave Bryand wrote:
> Hi,
>
> I'm trying to figure out how to access the value of an instance variable
> that gets setup on SiteController when my extension is activated. I'd
> like to use this value in a tag, but I can' figure out how to access
> that variable from the tag.
>
> If I setup a tag that just dumps the page.inspect, like the tag below, I
> can see the instance variable in the output, but I just can't figure out
> how to grab it.
>
> ----------------
> tag 'inspect_page' do |tag|
> tag.globals.page.inspect
> end
> ----------------
>
> I'd like to be able to do something like
>
> ----------------
> tag 'my_instance_variable' do |tag|
> # @my_instance_variable is defined in SiteController on extension
> activation
> tag.globals.page.my_instance_variable
> end
> ----------------
>
> Anyone know how to do this?
>
> Thanks!
>
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