announcement-test/app/views/admin/announcements/_form_image.html.erb

<!-- Images Upload -->
<div class="image_group">
  <label class="checkbox inline btn btn-danger image-form-remove">
    <% if f.object.new_record? %>
      <span class="delete_form" title="<%= t(:delete_) %>">
        X
      </span>
    <% else %> 
      <span class="remove_existing_record" title="<%= t(:remove) %>">
        <%= f.hidden_field :id %>
        <%= f.hidden_field :_destroy, :value => nil, :class => 'should_destroy' %>
        X
      </span>
    <% end %>
  </label>
  <div class="control-group">
    <label class="control-label muted"><%= t(:image) %></label>
    <div class="controls">
      <div class="fileupload fileupload-new clearfix <%= 'fileupload-edit' if form_image.file.present? %>" data-provides="fileupload">
        <div class="fileupload-new thumbnail pull-left">
          <% if form_image.file.file %>
            <%= image_tag form_image.file %>
          <% else %>
            <img src="/assets/bulletin/AAAAAA" />
          <% end %>
        </div>
        <div class="fileupload-preview fileupload-exists thumbnail pull-left"></div>
        <span class="btn btn-file">
          <span class="fileupload-new"><%= t(:select_image) %></span>
          <span class="fileupload-exists"><%= t(:change) %></span>
          <%= f.file_field :file %>
        </span>
        <a href="#" class="btn fileupload-exists" data-dismiss="fileupload"><%= t(:cancel) %></a>
      </div>
    </div>
  </div>
  <% @site_in_use_locales.each do |locale| %>
    <%= f.fields_for :description_translations do |f| %>
      <div class="control-group">
      <label class="control-label muted" for="image_description_<%= locale.to_s %>"><%= t(:description) + " (#{t(locale.to_s)})" %></label>
        <div class="controls">
          <%= f.text_field locale, value: (form_image.description_translations[locale.to_s] rescue nil) %> 
        </div>
      </div>
    <% end %>
  <% end %>
</div>