Best way to aggregate tagged objects

Ruby on Rails
1

Howdy! I have a need to return a mixed collection of tagged objects for an API.

  • Tag
  • Taggable (Polymorphic - Posts, Videos, Links)
  • Tagging (joins Tags and Taggables)

I’m considering creating a Tagged class that aggregates all tagged objects. Maybe something like:

class Tagged
  # returns all tagged objects
  def tagged
    Tag.find_each.map(&:taggables)
  end

  # returns all objects with a specific tag
  def tagged_as(tag)
    tag.taggables
  end
end

that taggables method is implemented in the Tag class as such:

def taggables
  [posts + videos + links].flatten
end

How would you implement this? Any thoughts or ideas?