Suggestions how to avoid "Useless use of private variable in void context" ?

[Edward Baudrez]

Hello list

There is this hint in the FAQ about keeping a strong reference to the transaction object $tx around, so that the message "Transaction already destroyed" does not appear in the logs:

https://docs.mojolicious.org/Mojolicious/Guides/FAQ#What-does-Transaction-already-destroyed-mean

However, that yields a warning, viz. "Useless use of private variable in void context" at the lone "$tx". Any hints how to avoid this warning?

Kind regards

Edward

[Felipe Gasper]

I think you could do:

$tx = $tx;

… instead. (It might be worth updating the FAQ to do that?)

-F

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[Dan Book]

A common idiom is `undef $tx;` since you are also done with the object at that point.

-Dan

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[Dan Book]

That is, after the ->reply->exception.

-Dan