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Respect parent lookup regex value (sending parent viewset to NestedRegistryItem) #87

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13 changes: 9 additions & 4 deletions rest_framework_extensions/routers.py
Expand Up @@ -147,10 +147,11 @@ def get_dynamic_routes_instances(self, viewset, route, dynamic_routes):


class NestedRegistryItem(object):
def __init__(self, router, parent_prefix, parent_item=None):
def __init__(self, router, parent_prefix, parent_item=None, parent_viewset=None):
self.router = router
self.parent_prefix = parent_prefix
self.parent_item = parent_item
self.parent_viewset = parent_viewset

def register(self, prefix, viewset, base_name, parents_query_lookups):
self.router._register(
Expand All @@ -161,7 +162,8 @@ def register(self, prefix, viewset, base_name, parents_query_lookups):
return NestedRegistryItem(
router=self.router,
parent_prefix=prefix,
parent_item=self
parent_item=self,
parent_viewset=viewset
)

def get_prefix(self, current_prefix, parents_query_lookups):
Expand All @@ -174,10 +176,12 @@ def get_parent_prefix(self, parents_query_lookups):
prefix = '/'
current_item = self
i = len(parents_query_lookups) - 1
parent_lookup_value_regex = getattr(self.parent_viewset, 'lookup_value_regex', '[^/.]+')
while current_item:
prefix = '{parent_prefix}/(?P<{parent_pk_kwarg_name}>[^/.]+)/{prefix}'.format(
prefix = '{parent_prefix}/(?P<{parent_pk_kwarg_name}>{parent_lookup_value_regex})/{prefix}'.format(
parent_prefix=current_item.parent_prefix,
parent_pk_kwarg_name=compose_parent_pk_kwarg_name(parents_query_lookups[i]),
parent_lookup_value_regex=parent_lookup_value_regex,
prefix=prefix
)
i -= 1
Expand All @@ -193,7 +197,8 @@ def register(self, *args, **kwargs):
self._register(*args, **kwargs)
return NestedRegistryItem(
router=self,
parent_prefix=self.registry[-1][0]
parent_prefix=self.registry[-1][0],
parent_viewset = self.registry[-1][1]
)

def get_api_root_view(self):
Expand Down