nav

  <div class="navigation--wrapper">
    <div class="navigation--button">
      <div ><a href="<%= config[:baseurl] %>/"><i class="icon-logo button" ></i></a></div>
      <div id="js-mobile-menu"><i class="icon-menu button"></i></div>
    </div>
    <ul class="navigation--menu" id="navigation-menu">
      <li>
      <%= link_to 'Projects', '/projects/index.html', :class => ("active" if current_page.data[:active].presence == 'projects') %>
      <li>
      <%= link_to 'Journal', (if current_page.data[:active].presence == 'journal' ? blog.articles.first.url : '/journal/index.html'), :class => ('active' if current_page.data[:active].presence == 'journal') %>
      </li>
      <li>
        <%= link_to 'About', 'index.html', :class => ('active' if current_page.data[:active].presence == 'about') %>
      </li>
      <li>
      <%= link_to 'Contact', 'contact.html', :class => ('active' if current_page.data[:active].presence == 'contact') %>
      </li>
    </ul>
  </div>

working line

<%= link_to 'Journal', (current_page.data[:active].present? == 'journal' ? blog.articles.first.url : '/journal/index.html'), :class => ('active' if current_page.data[:active].presence == 'journal') %>