[Zope] Zope Book Example

Hi every one. Has anyone been able to make Chapter's 10 example "Acquiring Arguments from other Objects" to work? I've followed all the instructions, but my ZSQL Method can't acquire the value from the folder's property when I access it directly trough the URL: http://localhost:8080/Departments/Sales/requisitionSomethingForm I fill out the form and when posting it I get an exception. Using Zope 2.3 and Zserver it throws a: Error Type: Bad Request Error Value: ['department_id']Dieter Maurer wrote: Thanks in advance.