openproject/app/views/layouts/admin.html.erb

<%#-- copyright
OpenProject is an open source project management software.
Copyright (C) 2012-2020 the OpenProject GmbH

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 3.

OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
Copyright (C) 2006-2017 Jean-Philippe Lang
Copyright (C) 2010-2013 the ChiliProject Team

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

See docs/COPYRIGHT.rdoc for more details.

++#%>

<%
  parent_node = admin_first_level_menu_entry
  if local_assigns[:additional_breadcrumb].nil?
    breadcrumb_paths(ActionController::Base.helpers.link_to(t(:label_administration), admin_index_path),
                     default_breadcrumb)
  else
    breadcrumb_paths(ActionController::Base.helpers.link_to(t(:label_administration), admin_index_path),
                     default_breadcrumb,
                     local_assigns[:additional_breadcrumb])
  end
%>

<% @page_header_title = l(:label_administration) %>

<%= render template: "layouts/base", locals: { menu_name: :admin_menu } %>