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| author | David Heinemeier Hansson <david@loudthinking.com> | 2007-10-26 21:11:07 +0000 |
|---|---|---|
| committer | David Heinemeier Hansson <david@loudthinking.com> | 2007-10-26 21:11:07 +0000 |
| commit | 2a74d71e49604e21e03a002d38f0c68d0be81574 (patch) | |
| tree | 48943d0abc56133b8171b5ba6787dce77394150f /railties/lib/tasks | |
| parent | 49eafd8c3620bf8e46d21d447fc634a12c8280ab (diff) | |
| download | rails-2a74d71e49604e21e03a002d38f0c68d0be81574.tar.gz rails-2a74d71e49604e21e03a002d38f0c68d0be81574.tar.bz2 rails-2a74d71e49604e21e03a002d38f0c68d0be81574.zip | |
Added db:rollback to rollback the schema one version (or multiple as specified by STEP) [Jeffrey Allan Hardy]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8039 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'railties/lib/tasks')
| -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'] |