Use ErlyDTL templates with Nitrogen

gistfile1.hrl

-module(my_util).
-compile(export_all).

template_path(Template) ->
    filename:join([code:priv_dir(my_app), templates, Template]).

render_template(Name, Variables) ->
    Template = template_path(Name ++ ".html"),
    Mod = list_to_atom(Name ++ "_template"),
    ok = erlydtl:compile(Template, Mod),
    {ok, Body} = Mod:render([{flash, element_flash:render()},
                             {script, wf_script:get_script()} | Variables]),
    Body.