Document IrreversibleMigration.

2009-09-01 17:13:28 +10:00 · 2009-09-01 17:13:28 +10:00 · acd5395877
commit acd5395877
parent bae00bb1cc
1 changed files with 2 additions and 1 deletions
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@ -1,7 +1,8 @@
 require 'active_support/core_ext/object/metaclass'

 module ActiveRecord
-  class IrreversibleMigration < ActiveRecordError#:nodoc:
+  # Exception that can be raised to stop migrations from going backwards.
+  class IrreversibleMigration < ActiveRecordError
  end

  class DuplicateMigrationVersionError < ActiveRecordError#:nodoc: