Haml filters using Rails helpers

[Evgeny]

Hi,

I am trying to use a rails helper in a haml filter, is it possible somehow?

Something like this maybe:

module Haml::Filters::Javascript

  def render_with_options(text,options)

    content_for(:javascript) {

      text.rstrip.gsub("\n", "\n    ")

    }

  end

end

Would love for some help, since right now it errors with

undefined method `content_for' for Haml::Filters::Javascript:Module

which is understandable ... do I need to include some kind of rails module or something?

[Nathan Weizenbaum]

Filters are handled at compile time, so it's a little tricky to access the runtime ActionView context. You'll either need to override the #compile method and generate code calling the method, or create a new ActionView::Base instance and use that. I'd suggest looking at the Haml::Filters code for examples.