route_url() and pregenerator

[jenstroeger]

I noticed that Pyramid allows to pass a pregenerator to request.add_route(), which is then used by request.route_url() to touch up its arguments.

I don’t see this parameter for Service() though. What’s the recommended way of adding such a pregenerator?

[leplatrem]

It doesn't seem to be possible to pass custom route arguments currently.

But we could add a service attribute (like predicate) here for example:

cornice/cornice/pyramidhook.py

Lines 183 to 201 in 494f35f

	# 1. register route
	route_args = {}
	if hasattr(service, 'factory'):
	route_args['factory'] = service.factory
	routes = config.get_predlist('route')
	for predicate in routes.sorter.names:
	# Do not let the custom predicates handle validation of Header Accept,
	# which will pass it through to pyramid. It is handled by
	# _fallback_view(), because it allows callable.
	if predicate == 'accept':
	continue
	if hasattr(service, predicate):
	route_args[predicate] = getattr(service, predicate)
	config.add_route(route_name, service.path, **route_args)