Extracted generic Resource methods into a module

lib/rubyists.rb

@@ -2,5 +2,6 @@
 require 'dm-validations'
 require 'dm-aggregates'
 
+require 'rubyists/resource'
 require 'rubyists/user'
 require 'rubyists/country'

lib/rubyists/country.rb

@@ -1,5 +1,6 @@
 class Country
   include DataMapper::Resource
+  extend Rubyists::Resource
 
   has 1, :user
 
@@ -20,13 +21,5 @@ def populate
         country.save
       end
     end
-
-    def destroy_all
-      all.each {|model| model.destroy}
-    end
-
-    def none?
-      count == 0
-    end
   end
 end

lib/rubyists/resource.rb

@@ -0,0 +1,11 @@
+module Rubyists
+  module Resource
+    def destroy_all
+      all.each {|model| model.destroy}
+    end
+
+    def none?
+      count == 0
+    end
+  end
+end

spec/rubyists/resource_spec.rb

@@ -0,0 +1,6 @@
+require File.join(File.dirname(__FILE__), %w[.. spec_helper])
+require 'rubyists/resource'
+
+describe Rubyists::Resource do
+  it 'should be tested'
+end