app/views/job_applications/_form.html.erb
<%= form_for(@job_application) do |f| %>
<%= error_messages_for @job_application %>
<div class="field">
<%= f.label :company_name %><br>
<%= f.text_field(:company_name) %>
</div>
<% if show_select_active %>
<%= render(partial: 'form_select_active', locals: { f: f }) %>
<% end %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>