Append class if condition is true in Haml

Question

If post.published?

.post
  / Post stuff

Otherwise

.post.gray
  / Post stuff

I\'ve implemente

Answer 1

- classes = ["post", ("gray" unless post.published?)]
= content_tag :div, class: classes do
  /Post stuff

---

def post_tag post, &block
  classes = ["post", ("gray" unless post.published?)]
  content_tag :div, class: classes, &block
end

= post_tag post
  /Post stuff