[erlang-questions] Mnesia: aborting a transaction from within mnesia_lib:db_put (help!!!)

[Joel Reymont]

I extended mnesia_lib:db_put to look like this:

db_put(ram_copies, Tab, Val) -> ?ets_insert(Tab, Val), ok;
db_put(s3_copies, Tab, Val) -> s3db:db_put(Tab, Val);
db_put(disc_copies, Tab, Val) -> ?ets_insert(Tab, Val), ok;
db_put(disc_only_copies, Tab, Val) -> dets:insert(Tab, Val).

Note the call to s3db:db_put.

What do I return from this function to abort the enclosing Mnesia  
transaction?

Whatever I return does not seem to make any effect. {aborted, ...}  
doesn't do it and erlang:error(...) doesn't do it either.

Any clues?

	Thanks, Joel

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