[Zope] ZSQL Methods User's guide Error

the example under "Database Methods Classes" class ComputerHardwareItem: def dollar_volume_backordered(self): return unit_price * backordered is not idended, but worse does not work, it must read like this: class ComputerHardwareItem: def dollar_volume_backordered(self): return self.unit_price * self.backordered It also should be mentioned, that the Extensions directory is the directory "Extensions" in the Zope-installationroot, with the same accessrights as the "var" directory. Mit freundlichen Grüßen Joachim Schmitz WWW-Consultant email: js@ac-copy.net tel: +49-241-89491-0 fax: +49-241-89491-29