app/views/assistances/updated.js.erb
$('#info_'+ <%= @assistance.id %>).empty();
$('#info_'+ <%= @assistance.id %>).html('<%= j render partial: 'meetups/review_info', locals: {review: @assistance} %>');
$('#info_'+ <%= @assistance.id %>).show();
$('#edit_form_'+ <%= @assistance.id %>).hide();