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Diffstat (limited to 'railties/lib/tasks/databases.rake')
| -rw-r--r-- | railties/lib/tasks/databases.rake | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/railties/lib/tasks/databases.rake b/railties/lib/tasks/databases.rake index fb477bce62..85cbb42fe3 100644 --- a/railties/lib/tasks/databases.rake +++ b/railties/lib/tasks/databases.rake @@ -86,6 +86,13 @@ namespace :db do Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby end + desc 'Rolls the schema back to the previous version. Specify the number of steps with STEP=n' + task :rollback => :environment do + step = ENV['STEP'] ? ENV['STEP'].to_i : 1 + version = ActiveRecord::Migrator.current_version - step + ActiveRecord::Migrator.migrate('db/migrate/', version) + end + desc 'Drops, creates and then migrates the database for the current environment. Target specific version with VERSION=x' task :reset => ['db:drop', 'db:create', 'db:migrate'] |