.gitignore config/database_sample.yml @@ -20,6 +20,10 @@ To migrate to a specific version (for example to rollback) rake db:migrate VERSION=20081220234130 +To migrate a specific database (for example your "testing" database) + +rake db:migrate RAILS_ENV=test + CREDIT ------ This work is based on Lincoln Stoll's blog post: http://lstoll.net/2008/04/stand-alone-activerecord-migrations/ @@ -32,7 +36,7 @@ gem install -y activerecord rake mysql cd standalone-migrations/config cp database_sample.yml database.yml -edit database.yml (and change settings for your database) +edit database.yml (and change settings for your database, the development database is the default) cd ../ rake db:migrate (this will just create the schema_migrations table) (If you're familiar with rails there are also the tasks db:schema:dump and db:schema:load) README @@ -6,7 +6,9 @@ Dir["#{APP_BASE}/**/lib"].each { |p| $: << p } namespace :db do task :ar_init do require 'active_record' - ActiveRecord::Base.establish_connection(YAML::load(File.open('config/database.yml'))) + ENV['RAILS_ENV'] ||= 'development' + config = YAML.load_file(APP_BASE + '/config/database.yml')[ENV['RAILS_ENV']] + ActiveRecord::Base.establish_connection(config) logger = Logger.new $stderr logger.level = Logger::INFO ActiveRecord::Base.logger = logger @@ -17,6 +19,7 @@ namespace :db do require 'migration_helpers/init' ActiveRecord::Migration.verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] == "true" : true ActiveRecord::Migrator.migrate(APP_BASE + "/migrations/", ENV["VERSION"] ? ENV["VERSION"].to_i : nil) + Rake::Task[ "db:schema:dump" ].execute end namespace :schema do Rakefile 81c43e997f71a34ded654a1b3b05ad35df5d8c70 Todd Huss thuss@gabrito.com http://github.com/thuss/standalone-migrations/commit/21bd73f52514b1e2afd558761fe02bd906699882 21bd73f52514b1e2afd558761fe02bd906699882 2009-07-08T15:43:21-07:00 2009-07-08T15:43:21-07:00 Implemented Bryon's enhancement suggested in my blogs comments to make standalone migrations rake tasks behave more like regular Rails migrations 7d92b369f1792cd21b73b1ae229c20b43a4718d1 Todd Huss thuss@gabrito.com