/**
* Configures categories into the document
*/
protected function configureDocumentCategories(sfLuceneDocument $doc)
{
$categories = $this->getModelCategories();
if (count($categories) > 0) {
foreach ($categories as $category) {
$this->addCategory($category);
}
$doc->addField('sfl_category', implode(' ', $categories));
}
$doc->addField('sfl_categories_cache', serialize($categories));
return $doc;
}
