From eb9f1ef84f5236c6a1d4d46d372bf8fe6e2fff58 Mon Sep 17 00:00:00 2001 From: Aditya Kapoor Date: Thu, 21 Aug 2014 01:01:45 +0530 Subject: [ci skip] add doc for STEP in migration --- activerecord/lib/active_record/migration.rb | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'activerecord') diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 9219d70c65..d0d9304a36 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -181,9 +181,12 @@ module ActiveRecord # # To roll the database back to a previous migration version, use # rake db:migrate VERSION=X where X is the version to which - # you wish to downgrade. If any of the migrations throw an - # ActiveRecord::IrreversibleMigration exception, that step will fail and you'll - # have some manual work to do. + # you wish to downgrade. Alternatively, you can also use the STEP option if you + # wish to rollback last few migrations. rake db:migrate STEP=2 will rollback + # the latest two migrations. + # + # If any of the migrations throw an ActiveRecord::IrreversibleMigration exception, + # that step will fail and you'll have some manual work to do. # # == Database support # -- cgit v1.2.3