redmine_glossary/app/views/glossary_terms/_sidebar.html.erb

<% content_for :sidebar do %>
  <h3><%=l :label_view %></h3>

  <%= form_with url: project_glossary_terms_path, method: :get, local: true do |form| %>
    <fieldset>
      <legend><%=l :label_grouping %></legend>
      <%= form.radio_button :grouping, 1, checked: @grouping == '1' ? 'checked' : nil %>
      <%= form.label :grouping, l(:label_categorized), vaule: 1 %>
      <%= form.radio_button :grouping, 0, checked: @grouping == '0' ? 'checked' : nil %>
      <%= form.label :grouping, l(:label_not_categorized), value: 0 %>
    </fieldset>
    <%= form.submit l(:label_view) %>
  <% end %>

  <h3><%=l :label_glossary_term %></h3>
  <p><%= link_to_if_authorized l(:label_glossary_term_new),
     { controller: :glossary_terms, action: :new, project_id: @project },
     class: 'icon icon-add' %></p>

  <h3><%=l :label_glossary_category %></h3>
  <p><%= link_to_if_authorized l(:label_glossary_category_new),
     { controller: :glossary_categories, action: :new, project_id: @project},
     class: 'icon icon-add' %></p>
  
  <p><%= link_to l(:label_glossary_categories),
     project_glossary_categories_path %></p>

  <h3><%=l :label_glossary_index %></h3>
  <table>
    <% l(:index_en).each_line do |line| %>
      <tr>
        <% line.split(" ").each do |ch| %>
          <td><%= link_to ch, project_glossary_terms_path(index: ch) %></td>
        <% end %>
      </tr>
    <% end %>
  </table>
<% end %>