[Koha-bugs] [Bug 24745] OPAC news block plugin should evaluate as false if there are no items

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=24745

--- Comment #8 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
(In reply to Owen Leonard from comment #7)
> (In reply to Marcel de Rooy from comment #6)
> > Wouldnt it be better to return undef or empty string in case of template use?
> > If it is concatenated somewhere, we get a 0 in between ?
> 
> Returning undef triggered this error in the QA tool:
> 
> "# Subroutines::ProhibitExplicitReturnUndef: Got 1 violation(s)."

This has to do with syntax. You should not write "return undef" but you write
"return;". In scalar context you return undef, in list context empty list.

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