Hide Layered Navigation Attribute if only 1 available

Question

My store has numerous attributes in my layered navigation to allow customers to refine the product views/searches. On some of my categories i only have 1 attribute present. For example one of my categories - women > accessories > belts

has:

- 1 price option ($10.00 and above)
- 3 colour options (brown, tan, black)
- 1 brand option (Levi's)

How can I hide any filters that only have 1 value present. So in this case instead of the above i would only want:

- 3 colour options (brown, tan, black)

to show in the layered navigation

Answer 1

edit the file /app/design/frontend/{package}/{theme}/template/catalog/layer/view.phtml and replace this line:

 <?php if($_filter->getItemsCount()): ?>  

with

 <?php if($_filter->getItemsCount() > 1): ?>

I only see one problem with this approach.
If all your filters have only one option they you will still get the section title

<p class="block-subtitle"><?php echo $this->__('Shopping Options') ?></p>

But this can easily be overcome if you loop through the available filters and see if you have at least one that has the items count bigger than 1.