Product search does not work due to addVisibleInSiteFilterToCollection

Question

I have enabled my products visibility for both list page and search. But when I use

Mage::getSingleton('catalog/product_visibility')->addVisibleInSiteFilterToCollection($products);

the products does not displayed.

What does addVisibleInSiteFilterToCollection do?

Thanks

EDIT

I have installed a module. I think that module checks the products visibility with function addVisibleInSiteFilterToCollection. But no products are displayed. I have checked my all products are visible in both catalog and search. I am curious what exactly this function does? Because when I comment this function I can see my products.

Answer 1

What happens in the function addVisibleInSiteFilterToCollection is that the appropriate visibility filters are added to the collection.

When calling addVisibleInSiteFilterToCollection you need to pass in a collection. This collection then gets used as follows.

$collection->setVisibility($this->getVisibleInSiteIds());

The function getVisibleInSiteIds returns an array containing the constants for each type of visibility.

return array(self::VISIBILITY_IN_SEARCH, self::VISIBILITY_IN_CATALOG, self::VISIBILITY_BOTH);

Now the function setVisibility us slightly more complex. What it does is set these values to a protected array of all collection limitations and then sets all limitations against the collection.

$this->_productLimitationFilters['visibility'] = $visibility;
$this->_applyProductLimitations();

But what this really boils down to is simply adding a filter to the collection.

if (isset($filters['visibility']) && !isset($filters['store_table'])) {
    $conditions[] = $this->getConnection()
        ->quoteInto('cat_index.visibility IN(?)', $filters['visibility']);
}

Answer 2

Puiysh,Please use the below

$collection->setVisibility(Mage::getSingleton('catalog/product_visibility') ->getVisibleInSiteIds());

I Suggestion please set current product collection Visibility using ;

Mage::getSingleton('catalog/product_visibility')->getVisibleInSiteIds();

Which will only filter ('Catalog, Search') and ('Search') visibility status Products