@@ -, +, @@ --- C4/Templates.pm | 6 +++++- catalogue/search.pl | 2 +- 2 files changed, 6 insertions(+), 2 deletions(-) --- a/C4/Templates.pm +++ a/C4/Templates.pm @@ -224,7 +224,11 @@ sub param { my $val = shift; if ( ref($val) eq 'ARRAY' && !scalar @$val ) { $val = undef; } elsif ( ref($val) eq 'HASH' && !scalar %$val ) { $val = undef; } - $self->{VARS}->{$key} = $val; + if ( $key ) { + $self->{VARS}->{$key} = $val; + } else { + warn "Problem = a value of $val has been passed to param without key"; + } } } --- a/catalogue/search.pl +++ a/catalogue/search.pl @@ -369,7 +369,7 @@ if ( C4::Context->preference('defaultSortField') @sort_by = split("\0",$params->{'sort_by'}) if $params->{'sort_by'}; $sort_by[0] = $default_sort_by unless $sort_by[0]; foreach my $sort (@sort_by) { - $template->param($sort => 1); + $template->param($sort => 1) if $sort; } $template->param('sort_by' => $sort_by[0]); --