JezK

Edit File: Cart.php

<?php
App::uses('AppModel', 'Model');
App::uses('CakeSession', 'Model/Datasource');

class Cart extends AppModel
{

public $useTable = false;

/*
     * add a product to cart
     */
    public function addPackage($productId)
    {
        $allPackages = $this->readPackage();
        if (null != $allPackages) {
            //	if (array_key_exists($productId, $allPackages)) {
            //		$allPackages[$productId]++;
            //	} else {
            //		$allPackages[$productId] = 1;
            //	}
            //} else {
            //	$allPackages[$productId] = 1;
            //}
            if (array_key_exists($productId, $allPackages)) {
                //$allPackages[$productId]++;
            } else {
                $allPackages[$productId] = 1;
            }
        } else {
            $allPackages[$productId] = 1;
        }

$this->savePackage($allPackages);
    }

/*
     * get total count of products
     */
    public function getCount()
    {
        $allPackages = $this->readPackage();

if (count($allPackages) < 1) {
            return 0;
        }

$count = 0;
        foreach ($allPackages as $product) {
            $count = $count + $product;
        }

return $count;
    }

/*
     * save data to session
     */
    public function savePackage($data)
    {
        return CakeSession::write('cart', $data);
    }

/*
     * read cart data from session
     */
    public function readPackage()
    {
        return CakeSession::read('cart');
    }

}

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