app/views/data_fields/_form.html.erb
<%#= render partial: 'data_types/progress_bar', locals: {current_step: 2} %>
<div class='data_field'>
<%= form_for (params[:id] ? [DataType.find(params[:data_type_id]), @data_field] : [:data_type, @data_field]) do |df_form| %>
<%= df_form.error_messages %>
<%= render partial: 'description', locals:{df_form: df_form} %>
<p>
<div id="optional_fields"></div>
</p>
<p>
<%= df_form.submit "Save and add another field", name: "add_another" %>
<%= df_form.submit "Save and finish", name: "submit" %>
</p>
<% end %>
</div>
<%= render partial: "data_types/summary", locals: {data_type: DataType.find(params[:data_type_id])} %>