basic functionality for simplest active record find(id)

- messy code, to be cleaned up this weekend

lib/active_relation/engines/engine.rb

@@ -1,4 +1,18 @@
 module ActiveRelation
+  # this file is currently just a hack to adapt between activerecord::base which holds the connection specification
+  # and active relation. ultimately, this file should be in effect what the connection specification is in active record;
+  # that is: a spec of the database (url, password, etc.), a quoting adapter layer, and a connection pool.
   class Engine
+    def initialize(ar = nil)
+      @ar = ar
+    end
+    
+    def connection
+      @ar.connection
+    end
+    
+    def method_missing(method, *args, &block)
+      @ar.connection.send(method, *args, &block)
+    end
   end
 end

lib/active_relation/sessions/session.rb

@@ -3,22 +3,20 @@ require 'singleton'
 module ActiveRelation
   class Session    
     class << self
+      attr_accessor :instance
+      alias_method :manufacture, :new
+      
       def start
         if @started
           yield
         else
           begin
             @started = true
-            @instance = new
+            @instance = manufacture
-            manufacture = method(:new)
+            metaclass.send :alias_method, :new, :instance
-            metaclass.class_eval do
-              define_method(:new) { @instance }
-            end
             yield
           ensure
-            metaclass.class_eval do
+            metaclass.send :alias_method, :new, :manufacture
-              define_method(:new, &manufacture)
-            end
             @started = false
           end
         end
@@ -31,8 +29,10 @@ module ActiveRelation
       end
       
       def read(select)
-        @read ||= {}
+        @read ||= Hash.new do |hash, select|
-        @read.has_key?(select) ? @read[select] : (@read[select] = select.engine.select_all(select.to_sql))
+          hash[select] = select.engine.select_all(select.to_sql)
+        end
+        @read[select]
       end
       
       def update(update)

spec/active_relation/unit/relations/table_spec.rb

@@ -91,5 +91,11 @@ module ActiveRelation
         Table.new(:users, engine = Engine.new).engine.should == engine
       end
     end
+    
+    describe '#reset' do
+      it "" do
+        pending
+      end
+    end
   end
 end