openproject/app/views/attachments/_nested_form.html.erb

<%#-- copyright
OpenProject is a project management system.
Copyright (C) 2012-2018 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) 2006-2017 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.

++#%>

<%# locals: prefix %>

<%# as field_for requries the usage of nested_attributes or at least
an attachments_attributes= and not every model supports this we build a nested form on our own writer %>

<% prefix = unless prefix.nil?
              prefix + "[attachments]"
            else
              "attachments"
            end
%>

<% open ||= false %>

<fieldset id="attachments" class="form--fieldset -collapsible<%= open ? '' : ' collapsed' %>">
  <legend class="form--fieldset-legend" title="<%=l(:description_attachment_toggle)%>" >
    <a href="#"><%=l(:label_attachment_plural)%></a>
  </legend>
  <div <%= "style=\"display: none;\"".html_safe unless open %>>
    <div id="attachments_fields">
      <div class="grid-block" id="attachment_template">
        <div class="form--field">
          <div class="attachment_field form--field-container -vertical -shrink">
            <div class="form--file-container">
              <%= file_field_tag "#{prefix}[1][file]",
                                 size: 15,
                                 id: nil,
                                 class: "attachment_choose_file"  -%>
            </div>
          </div>
        </div>
        <div class="form--field -wide-label">
          <label class="form--label">
            <%= l(:label_optional_description) %>
          </label>
          <div class="form--text-field-container">
            <%= text_field_tag "#{prefix}[1][description]",
                               '',
                               size: 38,
                               id: nil %>
          </div>
        </div>
      </div>
    </div>
    <span class="add_another_file">
      <%= link_to_function t(:label_add_another_file), 'addFileField()' %>
      (<%= l(:label_max_size) %>: <%= number_to_human_size(Setting.attachment_max_size.to_i.kilobytes, precision: 3) %>)
    </span>
  </div>
</fieldset>