Rake db: schema: dump does not provide data transfer information - is there an automated way to get this?

Question

Rake db: schema: dump does not provide data transfer information - is there an automated way to get this?

rake db:schema:dump

This command gives you an outdated database schema, and you can create a migration for this database from the generated schema.

But if there was data in this database, it would be nice if there was a rake command to retrieve the data in the migration file generated by Rails.

Maybe I’m dreaming - maybe it’s too much to think that Rails can look at the data in the old database and create a transfer from existing data for you — something like this:

class LoadDefaultData < ActiveRecord::Migration
  def self.up
    bopeep = User.find_by_username 'bopeep'
    BlogPost.create(:title => 'test', :content => 'test', :author_id => bopeep.id, :status => 'ok')
  end

  def self.down
  end
end