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ORing object permissions falls back to has_permission if no object permission

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Composing permissions with OR should fall back on has_permission when
has_object_permission isn't implemented. If has_object_permission is
not implemented, than its has_permission should apply to all objects.
Strictly speaking, BasePermission.has_object_permission could return
self.has_permission(request, view), but only in the OR case is it possible
that wasn't already true, so only doing that fallback in the OR case
saves some redundant calls to has_permission.
This commit is contained in:
Ben Buchwald 2021-05-06 18:25:01 -04:00
parent 0edc4d776b
commit 91f12360d0
1 changed files with 4 additions and 0 deletions
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rest_framework/permissions.py
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@ -81,9 +81,13 @@ class OR:
def has_object_permission(self, request, view, obj):
hasperm1 = self.op1.has_object_permission(request, view, obj)
if hasperm1 is NotImplemented:
hasperm1 = self.op1.has_permission(request, view)
if hasperm1 and hasperm1 is not NotImplemented:
return hasperm1
hasperm2 = self.op2.has_object_permission(request, view, obj)
if hasperm2 is NotImplemented:
hasperm2 = self.op2.has_permission(request, view)
return hasperm1 if hasperm2 is NotImplemented else hasperm2