<% if @subject_index.is_root? %>

  1. <%= @subject_index.name %>

<% else %>
    <% @subject_index.ancestors.each do |ancestor| %>

  1. <%= link_to ancestor.name, search_doctrines_path(subject_ids: [ancestor.id]) %>

    2. <% end %>

  2. <%= @subject_index.name %>

<% end %>
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Sub Levels

Add
<%= render(SubjectAccordionComponent.new(current_user: current_user, parent: @subject_index)) %>