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from django.conf.urls import url, patterns
class BaseRouter(object):
def __init__(self):
self.registry = []
def register(self, prefix, viewset, base_name):
self.registry.append((prefix, viewset, base_name))
def get_urlpatterns(self):
raise NotImplemented('get_urlpatterns must be overridden')
@property
def urlpatterns(self):
if not hasattr(self, '_urlpatterns'):
self._urlpatterns = patterns('', *self.get_urlpatterns())
return self._urlpatterns
class DefaultRouter(BaseRouter):
route_list = [
(r'$', {'get': 'list', 'post': 'create'}, 'list'),
(r'(?P<pk>[^/]+)/$', {'get': 'retrieve', 'put': 'update', 'delete': 'destroy'}, 'detail'),
]
extra_routes = r'(?P<pk>[^/]+)/%s/$'
name_format = '%s-%s'
def get_urlpatterns(self):
ret = []
for prefix, viewset, base_name in self.registry:
# Bind regular views
if not getattr(viewset, '_is_viewset', False):
regex = prefix
view = viewset
name = base_name
ret.append(url(regex, view, name=name))
continue
# Bind standard CRUD routes
for suffix, action_mapping, action_name in self.route_list:
# Only actions which actually exist on the viewset will be bound
bound_actions = {}
for method, action in action_mapping.items():
if hasattr(viewset, action):
bound_actions[method] = action
# Build the url pattern
regex = prefix + suffix
view = viewset.as_view(bound_actions, name_suffix=action_name)
name = self.name_format % (base_name, action_name)
ret.append(url(regex, view, name=name))
# Bind any extra `@action` or `@link` routes
for action_name in dir(viewset):
func = getattr(viewset, action_name)
http_method = getattr(func, 'bind_to_method', None)
# Skip if this is not an @action or @link method
if not http_method:
continue
suffix = self.extra_routes % action_name
# Build the url pattern
regex = prefix + suffix
view = viewset.as_view({http_method: action_name}, **func.kwargs)
name = self.name_format % (base_name, action_name)
ret.append(url(regex, view, name=name))
# Return a list of url patterns
return ret
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