model.py 文件源码

def getSubmodel(self, request, name):
        """
        Get the submodel `name' of this model. If I ever return a
        Deferred, then I ought to check for cached values (created by
        L{setSubmodel}) before doing a regular Deferred lookup.
        """
        if self.submodels.has_key(name):
            return self.submodels[name]
        if not self.submodelCheck(request, name):
            return None
        m = self.submodelFactory(request, name)
        if m is None:
            return None
        sm = adaptToIModel(m, self, name)
        self.submodels[name] = sm
        return sm