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Added route checking before add to route to prevent duplication #183

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Added route checking before add to route to prevent duplication #183

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19 changes: 16 additions & 3 deletions rest_framework_extensions/routers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,12 @@ class ExtendedActionLinkRouterMixin(object):
_routs = routes[2:4] + routes[:2] # first routes should be dynamic (because of urlpatterns position matters)
# left self.routs for backward

def route_is_in(self, target_route, route_list):
for route in route_list:
if route.url == target_route.name and route.name == target_route.name and route.mapping == target_route.mapping and route.initkwargs == target_route.initkwargs:
return True
return False

def get_routes(self, viewset):
"""
Augment `self.routes` with any dynamically generated routes.
Expand All @@ -80,20 +86,27 @@ def get_routes(self, viewset):
if self.is_dynamic_route(route):
# Dynamic routes (@list_route or @detail_route decorator)
if self.is_list_dynamic_route(route):
ret += self.get_dynamic_routes_instances(
temporary_route_list = self.get_dynamic_routes_instances(
viewset,
route,
self._filter_by_list_dynamic_routes(dynamic_routes)
)
for temporary_route in temporary_route_list:
if not self.route_is_in(temporary_route, ret):
ret.append(temporary_route)
else:
ret += self.get_dynamic_routes_instances(
temporary_route_list = self.get_dynamic_routes_instances(
viewset,
route,
self._filter_by_detail_dynamic_routes(dynamic_routes)
)
for temporary_route in temporary_route_list:
if not self.route_is_in(temporary_route, ret):
ret.append(temporary_route)
else:
# Standard route
ret.append(route)
if route not in ret:
ret.append(route)

return ret

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