Merge branch 'master' into newmc

[gruntmaster-page.git] / lib / Plack / App / Gruntmaster / HTML.pm

diff --git a/lib/Plack/App/Gruntmaster/HTML.pm b/lib/Plack/App/Gruntmaster/HTML.pm
index 319a5e509d70d71b881829a4addeb27fd010bae2..66468ca6a1aa6eabf2b3de81ec10d2ce6777ebef 100644 (file)
--- a/lib/Plack/App/Gruntmaster/HTML.pm
+++ b/lib/Plack/App/Gruntmaster/HTML.pm
@@ -287,6 +287,6 @@ sub process_ed {
                $div->set_child_content(class => 'solution', literal $data->{solution});
                $div->fclass('problem')->namedlink($data->{id}, $data->{name});
        };
-       my @pb = map { @{$args{$_}} } qw/beginner easy medium hard/;
+       my @pb = map { @{$args{$_} // []} } qw/beginner easy medium hard/;
        $tree->fclass('well')->iter3(\@pb, $iter);
 }