app/views/templates/_location_and_time_slots.html.erb
<% unless @locations %>
Please select roles first
<% else %>
<table class = "tablesorter">
<thead>
<tr>
<th>Enable</th>
<th>Where</th>
<th>Start</th>
<th>End</th>
<th>Days</th>
</tr>
</thead>
<tbody>
<tr>
<% if @template_time_slots.empty? %>
Please select roles first
<% else %>
<% @template_time_slots.each do |@time_slot| %>
<%= content_tag :div, id: "time_slot_#{@time_slot.id}" do %>
<%= render partial: 'template_time_slot_form', locals: {locations: @locations, time_slot: @time_slot, f: f} %>
<% end %>
<% end %>
<% end %>
</tr>
</tbody>
</table>
<% end %>