<% if presenter.representative_id.present? && presenter.representative_presenter.present? %> <% if defined?(viewer) && viewer %> <%= iiif_viewer_display presenter %> <% else %> <%= render media_display_partial(presenter.representative_presenter), file_set: presenter.representative_presenter %> <% end %> <% else %> <%= image_tag 'default.png', class: "canonical-image", alt: 'default representative image' %> <% end %>