app/views/conferences/details/edit.html.erb
<%= form_for(@conference_detail, html: {class: "form--conference"}) do |f| %>
<h3><%= t('.title') %></h3>
<section class="fields">
<%= f.label :location %>
<%= f.text_field :location %>
<%= f.label :starts_at, t('.dates') %>
<section class="date-picker">
<%= f.date_field :starts_at %><span>→</span><%= f.date_field :ends_at %>
</section class="date-picker">
<%= f.label :attendee_count %>
<%= f.number_field :attendee_count %>
</section>
<section class="submit">
<%= f.submit t('.next') %>
</section>
<% end %>
<nav class="nav--conference">
<ul>
<li><%= link_to t('.account'), new_conference_listing_path(@conference_detail.conference) %></li>
<li class="current"><%= link_to t('.details'), edit_conference_detail_path(@conference_detail.conference) %></li>
<li><%= link_to t('.structure'), edit_conference_structure_path(@conference_detail.conference) %></li>
</ul>
</nav>
<script src="//maps.googleapis.com/maps/api/js?key=<%= ENV['GOOGLE_MAPS_API_KEY'] %>&libraries=places&callback=ConferenceDetailsEdit"></script>