john-bodley commented on code in PR #20499:
URL: https://github.com/apache/superset/pull/20499#discussion_r906619409


##########
superset/security/manager.py:
##########
@@ -1469,3 +1464,63 @@ def has_guest_access(self, dashboard: "Dashboard") -> 
bool:
             if str(resource["id"]) == str(dashboard.embedded[0].uuid):
                 return True
         return False
+
+    def raise_for_ownership(self, resource: Model) -> None:
+        """
+        Raise an exception if the user does not own the resource.
+
+        Note admins are deemed owners of all resources.
+
+        :param resource: The dashboard, dataste, chart, etc. resource
+        :raises SupersetSecurityException: If the current user is not an owner
+        """
+
+        if self.is_admin():
+            return
+
+        # Set of owners that works across ORM models.
+        owners: Set[User] = set()

Review Comment:
   The `check_ownership` method would refetch the resource from the database 
but I'm not sure as to why. Is the concern that the ownership information may 
have change from the time of the request? If so I'm not sure we deal with these 
types of race conditions elsewhere.



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