templates/partial/side.html.ep

% my $side_bar = content_block 'sidebar';

% my $classes = '';
%
% if (length($side_bar) == 0) {
%   if (my $nav = navigation('settings')) {
%     $side_bar = b('<nav>' . $nav . '</nav>');
%     $classes = 'settings ';
%   };
% }

% unless (length($side_bar) > 1) {
%   $classes .= ' off';
% } elsif (stash('sidebar_active')) {
%   $classes .= ' active';
% };


<aside tabindex="0" class="<%= $classes %>">
  <div>
    %= $side_bar
  </div>
</aside>