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20 changes: 17 additions & 3 deletions documentcloud/users/views.py
Original file line number Diff line number Diff line change
Expand Up @@ -98,9 +98,23 @@ def retrieve(self, request, *args, **kwargs):
return super().retrieve(request, *args, **kwargs)

def get_queryset(self):
return User.objects.get_viewable(self.request.user).preload(
self.request.user, self.request.query_params.get("expand", "")
)
"""
Return viewable users, with optional prefetching to avoid N+1 queries.
"""
expand = self.request.query_params.get("expand", "")

# Base queryset
qs = User.objects.get_viewable(self.request.user)

# Prefetch related fields if expanding organization
if "organization" in expand:
qs = qs.select_related(
"organization", # user's active organization
"organization__parent", # organization's parent
).prefetch_related(
"organization__groups" # organization's groups
)
return qs.preload(self.request.user, expand)

def get_object(self):
"""Allow one to lookup themselves by specifying `me` as the pk"""
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