changed activerecord / datamapper to sqlite in order to facilitate the testing of multiple databases

examples/lib/activerecord_models.rb

@@ -1,15 +1,28 @@
 require 'active_record'
+db_dir = "#{File.dirname(__FILE__)}/../db"
 
-ActiveRecord::Base.establish_connection(:adapter => "#{"jdbc" if defined?(JRUBY_VERSION)}sqlite3", :database => ":memory:")
+ActiveRecord::Base.establish_connection(:adapter => "#{"jdbc" if defined?(JRUBY_VERSION)}sqlite3", :database => "#{db_dir}/activerecord_one.db")
+class SchemeInfo < ActiveRecord::Base
+end
 
-ActiveRecord::Schema.define(:version => 1) do
-  create_table :widgets do |t|
-    t.string :name
+# check to see if the schema needs resetting (when using file based db)
+begin
+  
+  result = ActiveRecord::Base.connection.execute("SELECT version FROM schema_migrations")
+  raise StandardError unless result.first["version"] == "1"
+  
+rescue                                                                
+  
+  ActiveRecord::Schema.define(:version => 1) do
+    create_table :widgets do |t|
+      t.string :name
+    end
+  
+    create_table :another_widgets do |t|
+      t.string :name
+    end
   end
   
-  create_table :another_widgets do |t|
-    t.string :name
-  end
 end
 
 unless defined? Widget

examples/lib/datamapper_models.rb

@@ -5,7 +5,9 @@ require "dm-core"
 require "dm-validations"
 require "dm-aggregates"
 
-DataMapper.setup(:default, "sqlite3::memory:")
+db_dir = "#{File.dirname(__FILE__)}/../db"
+
+DataMapper.setup(:default, "sqlite3:#{db_dir}/datamapper_one.db")
 
 class MapperWidget
   include DataMapper::Resource