Exclude a specific category

Question

Anyone have any suggestions on how to edit the below to exclude 1 particular category? (ID - 1511)

Any help would be appreciated :) thanks

<?php
class Sinch_Tonerconfigurator_Helper_Category extends Mage_Catalog_Helper_Category
{

    public function canShow($category)
     {
         if (is_int($category)) {
             $category = Mage::getModel('catalog/category')->load($category);
         }

         if (!$category->getId()) {
             return false;
         }

         if (!$category->getIsActive()) {
             return false;
         }
         if (!$category->isInRootCategoryList()) {
 //            return false;
         }

         return true;
     }

}
?>

    public function loadDropdownAction(){
        $this->getResponse()->setHeader('Content-type', 'application/json');
        $catid = $this->getRequest()->getParam('catid', null);
        $lastlevel = $this->getRequest()->getParam('lastlevel', 0);
        if(!$catid){
            $this->getResponse()->setBody('{ "success": false, "subcategories": [] }');
            return;
        }
        $category = Mage::getModel('catalog/category')->load($catid);
        if(!$category->hasChildren()){
            $this->getResponse()->setBody('{ "success": false, "subcategories": [] }');
            return;
        }
        $children = (Mage::getSingleton('tonerconfigurator/category')->isRootCategory($catid) ? Mage::getSingleton('tonerconfigurator/category')->getRootSubcatColl() : $category->getChildrenCategories());
        $response = array();
        $response['success'] = false;
        $response['subcategories'] = array();
        foreach($children as $child){
            $childArray = array();
            $childArray['name'] = $child->getName();
            if($lastlevel){
                $childArray['URL'] = $child->getUrl();
            }else {
                $childArray['id'] = $child->getId();
            }
            $response['subcategories'][] = $childArray;
        }
        if(!empty($response['subcategories'])){
            $response['success'] = true;
        }
        $this->getResponse()->setBody(json_encode($response));
        return;
    }
}

Answer 1

In context of your code snippet: (with code optimized)

 if (!$category->getId() || !$category->getIsActive() || $category->getId() == 1511 ) {
         return false;
     }

    return true

However, I can see you start with a ->load($category), which is most likely a model being loaded, and preceding that, I'd make the assumption you are using a collection?

If using a collection, you have better performance to simply exclude this id from the collection itself by using a collection filter as such: ->addFieldToFilter('entity_id', array('ne' => 1511))

Answer 2

Please try this

  public function canShow($category)
     {
         if (is_int($category)) {
             $category = Mage::getModel('catalog/category')->load($category);
         }

    if ($category instanceof Mage_Catalog_Model_Category) {
         if (!$category->getId() || !$category->getIsActive() || !$category->isInRootCategoryList()  || ($category->getId() == 1511) ) {
             return false;
        }else{
        return true;
        }
    }

        return false;
     }