Would STI be a good solution for this?

I'm using my ActionFlow plugin [1] to do workflow, and I'm storing steps in the db. Right now I've created a WorkflowStep class that just has a name field. It has a method which generates a particular step from the name. The individual steps are plain ruby classes.

That's worked fine so far, but now I need to associate some other data with individual steps. For example a certain step has_many :blog_posts or something. So I'm thinking of moving the steps into AR classes, so I'd have something like this:

class WorkflowStep < ActiveRecord::Base   include ActionFlow::WorkflowStep end

class NameStep < WorkflowStep   has_many :blog_posts

  def passes?...   def action... end

Now I can set up the associations I need.

There are several different steps so I'd be using STI. Is that a good fit for my situation? I've never used STI before, so I'm not quite sure if it's right here. Sort of thinking it is though...if you've got ideas for other approaches, I'd love to hear them. Thanks

Pat