volontariat/voluntary

module Voluntary
  module ProductHelper
    def render_product_specific_presenter_if_available(resource, partial_path, method, options = {})
      if @presenter.respond_to?(method)
        @step_presenter = @presenter.send(method) 
      else
        @step_presenter = nil
      end
      
      render_product_specific_partial_if_available(resource, "#{partial_path}/#{method}", options)
    end
    
    def render_product_specific_partial_if_available(resource, partial_path, options = {})
      path = nil
      partial_path = partial_path.split('/')
      file_name = partial_path.pop
      partial_path = partial_path.join('/')
      
      if resource && resource.respond_to?(:product) && resource.product
        path = "products/types/#{directory_for_resource(resource.product)}/#{partial_path}"
        
        path = [path, file_name].join('/')
        
        begin 
          return render(path, options)
        rescue ActionView::MissingTemplate
          path = nil
        end
      end
  
      path = [partial_path, file_name].join('/') if path.blank?
  
      render path, options 
    end
  end
end