def actions(self, obj):
# this composite action exists to let you use path with a
# class and still have the path action discriminator work
# correctly, which reports a conflict if you use the path
# action with the same model multiple times.
model = self.model
if isinstance(obj, type):
if model is not None:
raise dectate.DirectiveError("@path decorates class so cannot "
"have explicit model: %s" % model)
model = obj
if model is None:
raise dectate.DirectiveError(
"@path does not decorate class and has no explicit model")
yield PathAction(self.path, model, self.variables, self.converters,
self.required, self.get_converters, self.absorb), obj
def perform(self, obj, predicate_registry):
if not self.dispatch.external_predicates:
raise dectate.DirectiveError(
"@predicate decorator may only be used with "
"@reg.dispatch_external_predicates: %s" % self.dispatch)
predicate_registry.register_predicate(obj, self.dispatch, self.name,
self.default, self.index,
self._before, self._after)