Redmine

When I tried to perform a reverse migration of db/migrate/20090503121510_drop_members_role_id.rb, I came across the following "uninitialized constant" error.

== 20090503121510 DropMembersRoleId: reverting ================================
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

uninitialized constant DropMembersRoleId::IrreversibleMigration

    raise IrreversibleMigration
          ^^^^^^^^^^^^^^^^^^^^^
/path/to/redmine/db/migrate/20090503121510_drop_members_role_id.rb:7:in `down'

It is due to an incorrect exception class given to raise method. The exception class should be ActiveRecord::IrreversibleMigration instead of IrreversibleMigration. I am attaching a patch to fix it. You will get the following error after the fix.

== 20090503121510 DropMembersRoleId: reverting ================================
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

ActiveRecord::IrreversibleMigration
/path/to/redmine/db/migrate/20090503121510_drop_members_role_id.rb:7:in `down'