How can I know if a grouped products contains any MAP products?

Question

Basically I need to know if a grouped product contains any MAP sub product.

Is it possible to get this information without loading all product associated to it?

Answer 1

So, You need to check if any of the Grouped Product has a MAP set? You don't want to load all the product's because that can be slow.

The simplest suggestion I have is to gather all the Id's with

$ids = $product->getTypeInstance(true)->getAssociatedProductIds($product);

Then you can use

Mage::getResourceModel('catalog/product')->getAttributeRawValue($productId, 'attribute_code', $storeId);

Put it together. 'attribute_code' => needed Attribute's code && $storeId

$ids = $product->getTypeInstance(true)->getAssociatedProductIds($product);
foreach($ids as $id){
     $wantedAttribute = Mage::getResourceModel('catalog/product')->getAttributeRawValue($id, 'attribute_code', $storeId);
     if(SOME_CHECK){
         DOSOMETHING;
     }
}