Partial HAML templating in Ruby without Rails

Question

I really don’t need the overhead of Rails for my very small project, so I’m trying to achieve this just using just plain Ruby and HAML.

I want to include another HAM

Answer 1

I've done this before, just for a quick-and-dirty template producer. The easiest way is to just render the HAML inside the parent object:

%p some haml that's interesting
= Haml::Engine.new('%p this is a test').render
%p some more template

You'll more than likely want to build some methods to make this easier--a couple of helper methods. Maybe you write one called render_file that takes a filename as an argument. That method might look something like:

def render_file(filename)
  contents = File.read(filename)
  Haml::Engine.new(contents).render
end

Then, your template would look more like:

%p some template
= render_file('some_filename.haml')
%p more template

Note, you will probably need to pass self to the original Haml::Engine render so that it knows how to find your render_file method.