Item11965: MailNotify fails with perl "undefined value" errors, and needs better error reporting

I get a lot of emails that look like the following:

Subject: Cron <apache@adbu-vm2> cd /var/www/foswiki/tools && perl -I ../bin mailnotify -q Can't use an undefined value as an ARRAY reference at /auto/adbuwiki/Foswiki-1.1.5/lib/Foswiki/Users/TopicUserMapping.pm line 1244.

Crawford says that this is likely due to an unregistered email address in the notify list. It would be helpful if:

1. This message was more explicit about what the problem is. 2. This message included both the Web(s) and User(s) to which it applied.

-- DavidMasterson - 21 Jun 2012

Changed line 1244 in TopicUserMapping.pm to:

push( @users, @{ $this->{_MAP_OF_EMAILS}->{$email} } ) if ( $this->{_MAP_OF_EMAILS}->{$email} );

This seems to get past the problem, but it may not be the proper solution. This change was local in my Wiki -- a developer should evaluate if it should be applied.

-- DavidMasterson - 29 Aug 2012

I added unit tests, and your fix and another one shown up by the tests. Always a good idea to contribute a unit test with your patches!

-- CrawfordCurrie - 30 Aug 2012

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