Haml and categories listing error

[dab]

Found that when i add
- for post in site.categories.work

to my haml template i get error

(haml):10:in `render': undefined method `work' for #<Hash:0x1a77ff0> (NoMethodError)
    from /usr/local/lib/ruby/gems/1.8/gems/haml-2.2.2/lib/haml/engine.rb:167:in `render'
    from /usr/local/lib/ruby/gems/1.8/gems/haml-2.2.2/lib/haml/engine.rb:167:in `instance_eval'
    from /usr/local/lib/ruby/gems/1.8/gems/haml-2.2.2/lib/haml/engine.rb:167:in `render'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/convertible.rb:72:in `render_haml_in_context'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/convertible.rb:88:in `do_layout'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/page.rb:45:in `render'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/site.rb:223:in `transform_pages'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/site.rb:213:in `each'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/site.rb:213:in `transform_pages'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/site.rb:212:in `each'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/site.rb:212:in `transform_pages'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/../lib/jekyll/site.rb:126:in `process'
    from /usr/local/lib/ruby/gems/1.8/gems/henrik-jekyll-0.5.2/bin/jekyll:135
    from /usr/local/bin/jekyll:19:in `load'
    from /usr/local/bin/jekyll:19

But if i use liquid for this:

{% for post in site.categories.work %}
  <li>{{ post.title }}</li>
{% endfor %}

It works fine. Need advice, how to correct this issue.

[henrik]

To get the payload (site.categories etc) into Haml, I turn it into a context object with accessors: a ClosedStruct (an OpenStruct that raises on missing attributes). But it's not applied recursively. If I find time I may look at how Liquid implements this. Until then, something like

site.categories['work']

should probably work.