Rails: How to populate Db with data without migrations getting in the way?
$ rails new example -d mysql
$ cd example/
$ rails generate scaffold Users username:string password:string
  invoke  active_record
  create    db/migrate/20111004022310_create_users.rb
  create    app/models/user.rb
  ...
  ...

$ rake db:setup
/Sites/example/db/schema.rb doesn't exist yet. Run
"rake db:migrate" to create it then try again. If
you do not intend to use a database, you should
instead alter /Sites/example/config/application.rb
to limit the frameworks that will be loaded

$ rake db:migrate
==  CreateUsers: migrating ====================================================
-- create_table(:users)
   -> 0.2389s
==  CreateUsers: migrated (0.2390s) ===========================================
$ rake db:setup
-- create_table("users", {:force=>true})
   -> 0.1460s
-- initialize_schema_migrations_table()
   -> 0.5908s
-- assume_migrated_upto_version(20111004022310, "db/migrate")
   -> 0.0010s

$ rails console
ruby-1.9.2-p180 :007 > u = User.new(:username => 'test', :password => 'testing?')
 => #<User id: nil, username: "test", password: "testing?", created_at: nil, updated_at: nil>
ruby-1.9.2-p180 :008 > u.save!
 => true
ruby-1.9.2-p180 :009 > User.all
 => [#<User id: 2, username: "test", password: "testing?", created_at: "2011-10-04 02:33:56", updated_at: "2011-10-04 02:33:56">]

$ cat db/migrate/20111004022310_create_users.rb
class CreateUsers < ActiveRecord::Migration
  def self.up
    create_table :users do |t|
      t.string :username
      t.string :password

      t.timestamps
    end
  end

  def self.down
    drop_table :users
  end
end

$ rails generate migration prepopulate_users
      invoke  active_record
      create    db/migrate/20111004024648_prepopulate_users.rb
$ cat db/migrate/20111004024648_prepopulate_users.rb
class PrepopulateUsers < ActiveRecord::Migration
  def self.up
    # Assuming the 'results' is set up as an Enumerable for your data
    results.each do |row|
      u = User.new( :username => row[:username],
                    :password => row[:password] )
      u.save!
    end
  end

  def self.down
  end
end