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Document IrreversibleMigration.

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Ryan Bigg 2009-09-01 17:13:28 +10:00
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commit acd5395877
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activerecord/lib/active_record/migration.rb
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@ -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: