app/views/timeline/_location_row.html.erb
<ul id="location<%=location.id%>_<%=day%>_events" class="events" style="height:<%= @table_pixels / (@table_height)%>px;">
<% if day < Date.today %>
<li id="location<%=location.id%>_<%=day%>_free_time" style="width:100%;" class="no_signups"></li>
<% else %>
<%# location_preprocessing(location, day) %>
<%= render partial: 'shifts/schedule/signup_bar', object: @signup_bar, locals: {location: location, day: day} %>
<% end %>
<%= render partial: "shifts/schedule/shift", collection: location_row %>
</ul>
<% @location_row += 1 %>