Hobo Hobo → Hobo 1.4

betelgeuse@pena ~/hobo/hobo-loop $ ./script/generate hobo_migration

---------- Up Migration ----------
add_index :models, [:foo, :bar]
----------------------------------

---------- Down Migration --------
remove_index :models, :name => :index_models_on_foo_and_bar rescue ActiveRecord::StatementInvalid
----------------------------------
What now: [g]enerate migration, generate and [m]igrate now or [c]ancel? m

Migration filename:
(you can type spaces instead of '_' -- every little helps)
Filename [hobo_migration_4]: 
      exists  db/migrate
      create  db/migrate/20100313105517_hobo_migration_4.rb
(in /home/betelgeuse/hobo/hobo-loop)
==  HoboMigration4: migrating =================================================
-- add_index(:models, [:foo, :bar])
rake aborted!
An error has occurred, this and all later migrations canceled:

SQLite3::SQLException: table models has no column named foo: CREATE  INDEX "index_models_on_foo_and_bar" ON "models" ("foo", "bar")

(See full trace by running task with --trace)

The migration should not be generated when the column doesn't exist.