app/views/bulk_submissions/_upload.html.erb
<%= alert(:info) do %>
Please note that <strong>all</strong> submissions in your file will be processed, or if there are any errors,
<strong>none</strong> of them will be processed. You will get feedback about any problems.</p>
<% end %>
<%= semantic_form_for @bulk_submission, html: { multipart: true } do |form| %>
<%= form.semantic_errors :base %>
<%= form.inputs do %>
<%= form.input :spreadsheet, as: :file, required: true %>
<%= form.input :encoding, as: :select, collection: Encoding.list.map(&:to_s) %>
<span id="helpBlock" class="form-text text-muted">
Encoding describes the way special characters are stored in the CSV. By default Excel uses 'Windows-1252' format
on English language Windows systems. In most cases you can leave this option unchanged.</span>
<% end %>
<%= form.actions do %>
<%= form.action(:submit, button_html: { class:'btn btn-success btn-lg', data: { disable_with: 'Processing' }}) %>
<% end %>
<% end %>