I might need some help to track this down……..
When a user is deleted via the REST API, there is a function that appears to be
iterating over the users addresses and unlinking them.
Is it possible that the unlinking process is somehow mutating the list of
addresses that calling function is using? So as each address is unlinked
somehow the underlying list of addresses is no longer able to be used as an
effective address iterator?
Here are the relevant functions:
in rest/users.py (this is call from the REST API)
def on_delete(self, request, response):
"""Delete the named user, all her memberships, and addresses."""
if self._user is None:
not_found(response)
return
for member in self._user.memberships.members:
member.unsubscribe()
user_manager = getUtility(IUserManager)
for address in self._user.addresses:
debug_log.info('address scheduled for deletion: {}'.format(address))
for address in self._user.addresses:
user_manager.delete_address(address)
user_manager.delete_user(self._user)
no_content(response)
*********> the debug.log line above returns a full list of all the addresses
scheduled for deletion, proving that all the expected addresses are present in
self._user.addresses
*********> THE NEXT LINE "for address in self._user.addresses:” IS DOING THE
SKIPPING.
*********>>> SO - COULD IT BE that self._user.addresses is being mutated by
user_manager.delete_address(address), stuffing up the for loop that is meant to
be iterating over all addresses? Which is to say, as each address is unlinked,
the length of and values in self._user.addresses is changing?
in usermanager.py
@dbconnection
def delete_address(self, store, address):
"""See `IUserManager`."""
# If there's a user controlling this address, it has to first be
# unlinked before the address can be deleted.
if address.user:
address.user.unlink(address)
store.delete(address)
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