On Aug 15, 1:52 pm, "[email protected]" <[email protected]> wrote:
> So i've been banging my head against this for the better part of the
> last 5 hours and I have concluded that in my sleep deprived state I'm
> missing something really obvious and should just ask for help.
>
> I need to be able to access named route helpers (XXX_path and XXX_URL)
> form a class method in an ActiveRecord model. I tried a couple of
> approaches none of which worked:
>
> 1) include ActionController::UrlWriter in the model class -- this
> doesn't work because the included methods are instance methods and
> thus are not available in the class methods
>
> 2) According to the rails api you can access the helpers by using
> ActionController::UrlWriter.xxx_path (http://api.rubyonrails.org/
> classes/ActionController/UrlWriter.html). However that just doesn't
> work for me, I get the following error
>
> NoMethodError: undefined method `xxx_path' for
> ActionController::UrlWriter:Module
>
> If anyone has ANY ideas PLEASE let me know.
The helpers are defined in an anonymous module hidden inside the
routing stuff. You can ask rails to include that module in a class for
you, eg
class Foo
include ActionController::UrlWriter
def generate
parent_categories_url :host => 'example.com'
end
end
ActionController::Routing::Routes.named_routes.install(Foo)
Foo.new.generate #=> "http://example.com/admin/parent_categories";
Fred
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