openproject/app/views/projects/form/attributes/_identifier.html.erb

<%#-- copyright
OpenProject is a project management system.
Copyright (C) 2012-2013 the OpenProject Foundation (OPF)

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) 2006-2013 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 doc/COPYRIGHT.rdoc for more details.

++#%>

<p>
  <%= form.text_field :identifier, :required => true, :size => 60, :disabled => project.identifier_frozen? %>
  <% unless project.identifier_frozen? %>
    <script type="text/javascript" charset="utf-8">
      projectIdentifierMaxLength = <%= Project::IDENTIFIER_MAX_LENGTH %>;
      projectIdentifierDefault = '<%= project.identifier %>';
      projectIdentifierLocked = <%= !project.identifier.blank? %>;
      observeProjectIdentifier();
      observeProjectName();
    </script>
    <br />
    <em>
      <%= l(:text_length_between, :min => 1, :max => Project::IDENTIFIER_MAX_LENGTH) %>
      <%= l(:text_project_identifier_info).html_safe %>
    </em>
  <% end %>
</p>