Issue:

When enable Flat Catalog – Category and Product has :

Fatal error: Call to undefined method Mage_Catalog_Model_Resource_Category_Flat_Collection::addPathFilter() in /home/ebao/public_html/__sub.fabio/app/design/frontend/default/sm_theme/template/catalog/navigation/mobinav.phtml on line 43

Solution:

Please go to \app\design\frontend\default\sm_theme\template\catalog\navigation\mobinav.phtml and find:

$category_collection->addPathFilter($regexp);

=> change to:

if (Mage::helper('catalog/category_flat')->isEnabled()) { 			
		$category_collection->addPathsFilter();
	}else{
		$category_collection->addPathFilter($regexp);
	}

– and find:

foreach($category_collection as $category){
		$c = new stdClass();
		$c->label = $category->getName();
		$c->value = $category->getId();
		$c->level = $category->getLevel();
		$c->parentid = $category->getParentId();
		$c->url_path = $category->getUrlPath();
		$c->is_active = false;
		if ($this->getCurrentCategory()) {
			if($c->value == array_pop($this->getCurrentCategory()->getPathIds())){
				$c->is_active = true;
			}
		}			
		$cats[$c->value] = $c;
	}

=> change to:

foreach($category_collection as $category){
		if($category->getIsActive()){
			$c = new stdClass();
			$c->label = $category->getName();
			$c->value = $category->getId();
			$c->level = $category->getLevel();
			$c->parentid = $category->getParentId();
			$c->url_path = $category->getUrlPath();
			$c->is_active = false;
			if ($this->getCurrentCategory()) {
				if($c->value == array_pop($this->getCurrentCategory()->getPathIds())){
					$c->is_active = true;
				}
			}
		}			
		$cats[$c->value] = $c;
	}

– and find:

<?php foreach ($options as $item): ?>
		<option <?php echo ($item['is_active'])?"selected='selected'":"" ?> value="<?php echo ($item['url_path'])?$this->getBaseUrl().$item['url_path']: $item['value'] ?>"><?php echo $item['label'] ?></option>
	<?php endforeach ?>

=> change to:

<?php foreach ($options as $item): 
		if($item['url_path'] != '/root-catalog' && $item['value'] != '1'){
		?>
			<option <?php echo ($item['is_active'])?"selected='selected'":"" ?> value="<?php echo ($item['url_path'])?$this->getBaseUrl().$item['url_path']: $item['value'] ?>"><?php echo $item['label'] ?></option>
		<?php 
		}
		endforeach ?>

Thanks!