I have a content component called 'journey' which provides three attributes: journey_description, journey_date, and distance_travelled.
These 'journey' objects live in a container called 'car'. A car has attributes like owner, registration etc. So far, Everything is fine. I thought I would try to use adapters to extend the functionality of a 'car' object so that in the zmi_views, I could have a 'totals' page, showing the sum of the distance_travelled attributes of all the car's journey objects. I created an interface for the adapter, IDistanceTotal which describes one method, getTotalDistance. I created and adapter class, CarTotalDistanceAdapter. I updated configure.zcml like this: <adapter for=".interfaces.ICar" factory=".adapters.CarTotalDistanceAdapter" provides=".interfaces.IDistanceTotal" /> I tested the correct operation of the adapter in accordance with: Zope 3 Developer's Handbook,p142 and also with Web Component Development with Zope 3, page 149. The adapter was recognized, the getTotalDistance method appeared as an attribute of the Car object and valid results appeared for the distance travelled. I then created a nice page template which contains this snippet: <div tal:content="python:context.getTotalDistance()" /> where context is the Car object. Now, here is my problem: no matter what I do in the configure.zcml file, I cannot seem to get the context object to pick up the getTotalDistance method from the adapter. Depending on the security/permissions settings I either see: forbidden attribute or not found errors. I have tried studying the code of the zwiki product but to no avail. Am I right in thinking that my problems are related to the configure.zcml file? Any pointers gratefully received. I can get the ISized examples from the books to work ok. Thanks to all. John ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com _______________________________________________ Zope3-users mailing list Zope3email@example.com http://mail.zope.org/mailman/listinfo/zope3-users