Observer.php

Observer.php

<?php
/**
 * Demac Media
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the EULA
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://www.demacmedia.com/LICENSE-Magento.txt
 *
 * @category   Demac
 * @author     Allan MacGregor (allan@demacmedia.com)
 * @package    Demac_Crons
 * @copyright  Copyright (c) 2010-2011 Demac Media (http://www.demacmedia.com)
 * @license    http://www.demacmedia.com/LICENSE-Magento.txt
 */
//TODO: Add Configuration options for selecting the category
class Demac_Crons_Model_Observer
{
    public function addNewProducts()
    {
        $datefrom = date('Y-m-d H:i:s', strtotime('-30 days'));
        $dateto = date('Y-m-d H:i:s');
        $products = Mage::getModel('catalog/product')->getCollection()->addAttributeToSelect('*')->addFieldToFilter('created_at', array('from' => $datefrom, 'to' => $dateto));
        $this->addToCategory($products, 71);


        return $this;
    }

    public function addSaleProducts()
    {
        $products = Mage::getModel('catalog/product')->getCollection()->addAttributeToSelect('*')->addAttributeToFilter('special_price', array('neq' => ""));
        $this->addToCategory($products, 58);

    }
    
    public function removeNewProducts()
    {
        $datefrom = date('Y-m-d H:i:s', strtotime('-60 days'));
        $dateto =  date('Y-m-d H:i:s', strtotime('-30 days'));
        $products = Mage::getModel('catalog/product')->getCollection()->addAttributeToSelect('*')->addFieldToFilter('created_at', array('from' => $datefrom, 'to' => $dateto));
        $this->removeFromCategory($products, 71);

    }

    public function removeSaleProducts()
    {
        $products = Mage::getModel('catalog/product')->getCollection()->addAttributeToSelect('*')->addAttributeToFilter('category_ids',array('finset'=>'85'))->addAttributeToFilter('special_price', array('eq' => ""));
        $this->removeFromCategory($products, 58);

    }

    public function addToCategory($products, $catId)
    {
        foreach($products as $product)
        {
            $categoryIds = $product->getCategoryIds();
            if(!in_array($catId, $categoryIds)){
                $categoryIds[] = $catId;
                $product->setCategoryIds($categoryIds);
                $product->save();
                Mage::log('ADDED - Product: ' . $product['sku'], null, 'demac_crons.log');
            }

        }

    }
    public function removeFromCategory($products, $catId)
    {
        foreach($products as $product)
        {

            $categoryIds = $product->getCategoryIds();
            foreach($categoryIds as $key => $value)
            {
                if ($value == $catId) unset($categoryIds[$key]);
            }

            $product->setCategoryIds($categoryIds);
            $product->save();
            Mage::log('REMOVED - Product: ' . $product['sku'], null, 'demac_crons.log');

        }

    }



}