purplecat (![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
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dw_dev_training2012-05-01 07:32 pm
purplecat) wrote in dw_dev_training2012-05-01 07:32 pm
Entry tags:
Can a journal entry id be 0?
For Bug 2152 I've found I need to create a subroutine that checks whether a form element refers to a valid entry in the user's journal separately from the various subroutines for actually saving it as a sticky.
If a journal entry id can never be zero then this subroutine could return the id number if it is valid and 0 otherwise. In that case the subroutine can replace duplicate code in at least two places, but obviously if an entry can be 0 then the subroutine had better just return 0 or 1.
If a journal entry id can never be zero then this subroutine could return the id number if it is valid and 0 otherwise. In that case the subroutine can replace duplicate code in at least two places, but obviously if an entry can be 0 then the subroutine had better just return 0 or 1.
no subject
if (! defined $var )
But if you're doing that, you should probably use unless.