Getting x number of products from a category that are in stock

Question

I'm trying to get the first 4 products from a category that are in stock to show on the home page. I've got everything working the way I would like except it's pulling products that are out of stock.

I've tried addAttributeToFilter('is_in_stock', 1) and isSaleable() but those didn't work.

$collection = Mage::getModel('catalog/category')->
                    load('33')->
                    getProductCollection()->
                    addAttributeToFilter('status', 1)->
                    addAttributeToSelect('*')->
                    addAttributeToSort('position')->
                    setPageSize(4);

Answer 1

You have to pass the collection through a seperate method for that

Mage::getSingleton('cataloginventory/stock')->addInStockFilterToCollection($collection);

But maybe you would be better of using the regular list.phtml including it by using the XML layout in the page CMS. that way you don't need to write any code. The snippet below should work

<block type="catalog/product_list" name="product_list" template="catalog/product/list.phtml">
   <action method="setCategoryId"><category_id>30</category_id></action>
   <action method="setLimit"><value>4</value></action>
</block>