app/views/estimation_values/_add_attribute_note.html.erb
<%= simple_form_for(@estimation_value) do |f| %>
<%= hidden_field_tag :pbs_project_elt_id, params[:pbs_project_elt_id] %>
<%= f.input :notes, :as => :text, :input_html => { :value => @text_notes.to_s, :class => 'attribute_note_area'} %>
<div class="modal-footer-left">
<%= f.submit I18n.t('save'), :class => 'btn', :id => 'add_notes' %>
<button class="btn" data-dismiss="modal" aria-hidden="true"><%= I18n.t(:cancel) %></button>
</div>
<% end %>