Added db:migrate:redo for rerunning existing migrations (closes #10431) [matt]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8382 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/MIT-LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2005-2006 David Heinemeier Hansson
+Copyright (c) 2005-2007 David Heinemeier Hansson
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

railties/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Added db:migrate:redo for rerunning existing migrations #10431 [matt]
+
 * RAILS_GEM_VERSION may be double-quoted also.  #10443 [James Cox]
 
 * Update rails:freeze:gems to work with RubyGems 0.9.5.  [Jeremy Kemper]

railties/lib/tasks/databases.rake

@@ -86,6 +86,11 @@ namespace :db do
     Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby
   end
 
+  namespace :migrate do
+    desc  'Rollbacks the database one migration and re migrate up. If you want to rollback more than one step, define STEP=x'
+    task :redo => [ 'db:rollback', 'db:migrate' ]
+  end
+
   desc 'Rolls the schema back to the previous version. Specify the number of steps with STEP=n'
   task :rollback => :environment do
     step = ENV['STEP'] ? ENV['STEP'].to_i : 1