class ActiveAdmin::Renderer

def haml(template)
  begin
    require 'haml' unless defined?(Haml)
  rescue LoadError
    raise LoadError, "Please install the HAML gem to use the HAML method with ActiveAdmin"
  end
  # Find the first non whitespace character in the template
  indent = template.index(/\S/)
  # Remove the indent if its greater than 0
  if indent > 0
    template = template.split("\n").collect do |line|
      line[indent..-1]
    end.join("\n")
  end
  # Render it baby
  Haml::Engine.new(template).render(self)
end