Question

I’m working on implementing content_for and yield_content support in Hardwired.

The Sinatra::Contrib implementation doesn’t work, so I tried a simpler version:

  module ContentFor

    def content_for(key, &block)
      content_blocks[key.to_sym] << block.call
      return ""
    end

    def content_for?(key)
      content_blocks[key.to_sym].any?
    end

    def yield_content(key, *args)
      content_blocks[key.to_sym].join
    end

    private

    def content_blocks
      @content_blocks ||= Hash.new {|h,k| h[k] = [] }
    end
  end

Unfortunately, this repeats content (content_for seems to grab everything in the template, not just child content).

What approach should I take to implementing this?

Answer 1

Slim only captures child content if you use = or ==, not -.

Just use = content_for :area do instead of - content_for :area do

Note: Apparently this issue is specific to the Sinatra-style content_for and yield_content. Apparently the more sophisticated Rails implementation manages to use buffer magic to make this possible with - as well.