package MyProject::Sugar::Catalyst; use Sub::Exporter -setup => { exports => [ error_msg => \&_build_error_message, ], groups => { default => [qw/ error_msg /], }, }; sub _build_error_message { my ($class, $name, $def) = @_; return sub { my ($c, %arg) = @_; my $uri = $arg{uri} || $def->{uri} or die "No URI supplied"; my $msg = $arg{msg} || $def->{msg} || 'Oh noes, ANOTHER FUCKING ERROR!!!'; $c->res->redirect( $c->uri_for($uri, { mid => $c->set_error_msg($msg) }) ); $c->detach(); } }