[haml] Haml helper methods not available when called from controller?

[seb]

Hi,

I'm trying to call a helper method form a controller. The helper
method uses the Haml helper methods capture_haml, haml_tag, etc But
I'm runnning into errors like: "undefined method 'capture_haml'" and
so.

Example:

class FooController
  def update
    render :string => self.class.helpers.foobar_string
  end
end

module FooHelper
  def foobar_string
    capture_haml do
       haml_tag :h1, 'hello world'
    end
  end
end

Is there a way to make this work?

Thanks, Seb

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