Hi, I know from http://philikon.de/files/zope3-for-zope2-developers.pdf that ZopeX3 Component Architecture is more/differs than/to Model-View-Controller.
Model = Content in Zope View = Views in Zope but what about the controller? Where should I place the application logic? I mean, I will explain my problem with a example. I'd like to develop a server component, that simple calculates a sum. The component should be reachable via XML-RPC. So that the client somehow calls the server compoment to calculate a sum. You see, the server component need not to store any information, because it simple has one function. How should I implemented that task in Python/Zope. I mean, if I compare it to the Modell-View-Controller again, there is no real Model, because there is no need for peristence. I have tried to solve the problem in the following way: 1. Define an interface: ===== from zope.interface import Interface from zope.schema import List, Text, TextLine, Int class ICalculator(Interface): """Store information about a calculator. """ def add(arg1, arg2): """ Calculates des sum of the two arguments """ 2. Define an Object: ===== from persistent import Persistent from zope.interface import implements from simple.interfaces import ICalculator class Calc: implements(ICalculator) def add(self, arg1, arg2): return arg1 + arg2 3. Define the XML-RPC View: ===== from zope.schema import getFields from zope.app.publisher.xmlrpc import XMLRPCView from simple.interfaces import ICalculator def to_unicode(string): if isinstance(string, unicode): return string return string.decode('utf-8') class CalcView(XMLRPCView): def calc(self, arg1, arg2): context = self.context return context.add(arg1,arg2) ======================================= My overall question is now, is that ok? Or should I use utilities instead of (content) components if no persistence is required? I believe this is general question in development components, isn't it? Thanks a lot in advance, best regards Reinhold Strobl _______________________________________________ Zope3-users mailing list Zope3firstname.lastname@example.org http://mail.zope.org/mailman/listinfo/zope3-users