finally fleshing out links

lib/noah.rb

 module Noah
   PROTECTED_PATHS = %w[applications configurations hosts services watches ark noah]
-  PATH_MAPPING = {"Noah::Application" => "//noah/application",
-                  "Noah::Service" => "//noah/service",
-                  "Noah::Configuration" => "//noah/configuration",
-                  "Noah::Host" => "//noah/host",
-                  "Noah::Tag" => "//noah/tag",
-                  "Noah::Ephemeral" => "//noah/ephemeral"}
+  PATH_MAPPING = {"applications" => "Application",
+                  "services" => "Service",
+                  "configurations" => "Configuration",
+                  "hosts" => "Host",
+                  "tags" => "Tag",
+                  "ephemeral" => "Ephemeral"}
 end
 begin
   require 'yajl'

lib/noah/models/link.rb

+require File.join(File.dirname(__FILE__), 'link_member')
 module Noah
   class Link < Model
     attribute :path
-    attribute :source
+    list :nodes, LinkMember
     
     index :path
-    index :source
 
     def validate
       super
       assert_present :path
-      assert_present :source
-      assert_unique [:path, :source]
     end
     # Nothing to see yet.
     # This will be for creating "overlays" or "link" relationships

lib/noah/models/link_member.rb

+module Noah
+  class LinkMember
+
+    class <<self
+      def create(path)
+        path_to_instance(path)
+      end
+
+      protected
+      def path_to_instance(path)
+        p = path.split('/')
+        model, name = p[1], p[2]
+        x = instance_eval(Noah::PATH_MAPPING[model])
+        x.find(:name => name).first
+      end
+    end
+  end
+end