%= render 'header', :collection => @collection %>
<%= render 'sidebar', :collection => @collection %>
<% if @new_collection_version.blank? && can?(:branch, @collection) %>
<%= button_to t("txt.views.versioning.versioning_mode"),
collection_versions_branch_path(:origin => @collection.origin), :class => "btn btn-default" %>
<% elsif can?(:read, @new_collection_version) %>
<%= link_to t("txt.views.versioning.preview_new_version"),
collection_path(:published => 0, :id => @new_collection_version), :class => 'btn btn-default' %>
<% end %>
<%= render 'data', :collection => @collection %>