ActiveRecord::SubclassNotFound: The single-table inheritance mechanism failed to locate the subclass: 'Transactions::DummyDdnlTransaction'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Pleas

Hello,

I stumble upon this error when loading a subclass of the Transaction
class. For full details, see the pastie:

http://pastie.org/4053678

Error message: ActiveRecord::SubclassNotFound: The single-table
inheritance mechanism failed to locate the subclass:
'Transactions::DummyDdnlTransaction'. This error is raised because the
column 'type' is reserved for storing the class in case of
inheritance. Please rename this column if you didn't intend it to be
used for storing the inheritance class or overwrite
Transactions::DummyDdnlTransaction.inheritance_column to use another
column for that information.

Have Googled around, tried solutions like self.subclasses and
require_dependency but they didn't work for me.

I'm on Rails 2.3.14.

cmdjohnson

Answer in your error message rename column "
type", or

Hello,

I stumble upon this error when loading a subclass of the Transaction

class. For full details, see the pastie:

http://pastie.org/4053678

Error message: ActiveRecord::SubclassNotFound: The single-table

inheritance mechanism failed to locate the subclass:

‘Transactions::DummyDdnlTransaction’. This error is raised because the

column ‘type’ is reserved for storing the class in case of

inheritance. Please rename this column if you didn’t intend it to be

used for storing the inheritance class or overwrite

Transactions::DummyDdnlTransaction.inheritance_column to use another

column for that information.

Have Googled around, tried solutions like self.subclasses and

require_dependency but they didn’t work for me.

I’m on Rails 2.3.14.

cmdjohnson

Transactions::DummyDdnlTransaction.inheritance_column=“not_type_column”

Sorry, in real it’s about requiring class, try check if your subclasses class is loaded properly.

The autoloader is expecting to find Transactions::DummyDdnlTransaction in app/models/transactions/dummy_ddnl_transaction.rb - according to the Gist, you’ve got the file in the top level of app/models. Either move it, or manually require it.

–Matt Jones