Added Rakefile

Rakefile

@@ -0,0 +1,32 @@
+namespace "db" do
+    task :std_db_action, [:action] do |t,args|
+        require 'rubygems'
+        require 'global_config'
+        require 'dm-core'
+        require 'dm-migrations'
+        
+        # Connect to DB 
+        DataMapper.setup(:default, $db_url)
+        # Include all models
+        Dir["app/models/*.rb"].each { |file| require file }
+        # Reset tables
+        DataMapper.finalize
+        if args.action == 'migrate'
+            DataMapper.auto_migrate!
+            puts 'migration finished'
+        elsif args.action == 'upgrade'
+            DataMapper.auto_upgrade!
+            puts 'upgrade finished'
+        else
+            puts 'std_db_action [migrate|upgrade]'
+        end
+    end
+
+    task :migrate do
+        Rake.application.invoke_task("db:std_db_action[migrate]")
+    end
+
+    task :upgrade do
+        Rake.application.invoke_task("db:std_db_action[upgrade]")
+    end
+end

global_config.rb

@@ -20,5 +20,3 @@ constructed_db_url<<="#{$db_password}"     if not $db_password.nil?
 constructed_db_url<<="@#{$db_host}/"       if not $db_host.nil?
 constructed_db_url<<="@#{$db_database}"    if not $db_database.nil?
 $db_url=ENV['DATABASE_URL'] || constructed_db_url
-
-puts $db_url