app/views/notes/_form.html.erb
<%= form_for(@note) do |f| %>
<%= render 'shared/errors', object: @note %>
<p><strong><%= @note.note_object.class.name %>:</strong> <%= object_tag(@note.note_object) -%> </p>
<div class="field">
<%= f.label :text %>
<br>
<%= f.text_area :text %>
</div>
<%= f.hidden_field :note_object_type %>
<%= f.hidden_field :note_object_id %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>