+ def can_update(self, user):
+ if user.is_readonly:
+ return False
+ if user.is_admin:
+ return True
+ slice_privs = SlicePrivilege.objects.filter(user=user, slice=self)
+ for slice_priv in slice_privs:
+ if slice_priv.role.role == 'admin':
+ return True
+ return False
+
+ @staticmethod
+ def select_by_user(user):
+ if user.is_admin:
+ qs = Slice.objects.all()
+ else:
+ slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
+ qs = Slice.objects.filter(id__in=slice_ids)
+ return qs
+