super_migration¶ ↑

Migrate legacy database content into a databse with a new structure.

require 'super_migration'
include SM

SuperMigration.setup do |config|
  # same options as in database.yml
  config.from_database :database => "sm1",
                       :adapter  => "mysql",
                       :host     => "localhost",
                       :username => "root",
                       :password => ""

  config.to_database   :database => "sm2",
                       :adapter  => "mysql",
                       :host     => "localhost",
                       :username => "root",
                       :password => ""
end

SuperMigration.migrate do 
  table :from => :books, :to => :livres do

    field :from => :author, :to => :autheur

    # apply a transformation to dob field
    field :from => :title,  :to => :titre do |title|
      Date.today.to_s + title
    end
  end
end

• Fork the project.

• Make your feature addition or bug fix.

• Add tests for it. This is important so I don’t break it in a future version unintentionally.

• Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)

• Send me a pull request. Bonus points for topic branches.

Copyright © 2010 Cristian Prodan. See LICENSE for details.