conditional formatting

_item.html.erb

<%= content_tag :li, class: 'list-group-item todo-item', id: "item-#{item.id}" do %>
-  <%= item.description %>
-  <%= link_to " ", [current_user, item],  method: :delete, class: 'glyphicon glyphicon-ok pull-right', remote: true %>
-  <div class="text-center-small">
-    <small class="<%= format_days_remaining(item.days_left) %>">
-      <%= item.days_left.to_s. + " days left to complete"  %>
-    </small>
-  </div>
-<% end %>

<%= content_tag :li, class: 'list-group-item', id: "item-#{item.id}" do %>
<%= item.description %>
  <%= link_to " ", [current_user, item], method: :delete, class: 'glyphicon glyphicon-ok pull-right', remote: true %></li>
  <div class="text-center-small">
  <% if item.days_left >= 6 %>
<small class="active"><%= item.days_left.to_s + " days left to complete" %></small>
  <% elsif item.days_left <= 4 %>
<small class="pending"><%= item.days_left.to_s + " days left to complete" %></small>
  <% else %>
<small class="urgent"><%= item.days_left.to_s + " days left to complete" %></small>
</div>
  <% end %>
<% end %>

application.scss

.active {
  color: green;
}

.pending {
  color: yellow;
}

.urgent {
  color: red;
}

.todo-item:nth-child(odd) {
  background-color: red;
}

users_helper.rb

def format_days_remaining(days_left)
  #   if days_left >= 6
  #     "active"
  #   elsif days_left <= 4 
  #     "urgent"
  #   else 
  #     "critical"
  #   end
  # end