You can run this hook whenever Radiator fails connect to any
SQL server. The default is to log the failure. The hook is called with 1
argument: $object. $object is
the SqlDb object that was trying to connect.
In the following example
the default hook is replaced with a hook that logs a very short
message.
NoConnectionsHook sub { \
my $self = $_[0]; \
$self->log($main::LOG_ERR, "Could not connect to any SQL database"); }
