[Rails] Graph

[Bob Aman]

Noob alert.  I know barely any Ruby, and I'm just getting started with Rails.

I effectively have a graph data structure in my database, and I'm
trying to figure out how it should get modelled properly into Rails.

Let's say there's a "nodes" table and an "edges" table.  The "edges"
table has fields "from_id" and "to_id" as well as several other fields
to describe the edge.

How do I link things so that I can do stuff like:

<% for edge in @node.edges %>
From: <%= edge.from.name %><br />
To: <%= edge.to.name %><br />
Length: <%= edge.length %><br />
<hr />
<% end %>

-- 
Bob Aman