growstuff/app/views/posts/_single.html.haml

- @post ||= post if defined?(post)
%p
  Posted by
  - if @post.author
    = link_to @post.author.login_name, member_path(@post.author)
  - else
    Member Deleted
  - if @post.forum
    in
    = link_to @post.forum, @post.forum
  on
  = @post.created_at.to_fs(:default)
  - if @post.updated_at > @post.created_at
    and edited at
    = @post.updated_at.to_fs(:default)

= link_to "Permalink", @post

:markdown
  #{ strip_tags markdownify(@post.body) }