app/views/conferences/listings/new.html.erb
<header>
<h2><%= t('.title') %></h2>
</header>
<%= form_for(@conference_listing, url: conference_listing_path(conference_id: @conference_listing.id)) do |f| %>
<section class="inputs">
<fieldset>
<%= f.label :name %>
<%= f.text_field :name %>
<%= f.label :website_url %>
<%= f.text_field :website_url %>
<%= f.label :twitter_handle %>
<%= f.text_field :twitter_handle, disabled: true %>
</fieldset>
<figure>
<%= f.hidden_field :logo_url %>
<%= image_tag @conference_listing.logo_url if @conference_listing.logo_url %>
</figure>
</section>
<section class="submit">
<%= f.submit t('.submit') %>
</section>
<% end %>