Shopping cart cakephp+bootstrap modal - cakephp

Question

I have a problem with my shopping cart system using cakephp + bootstrap modal. The problem is that when I click/select one of my images, it will add to the cart but it will always display the last item/data in my database. Even though I'v selected the first item, it will still display the last item/data in my database. Please help me out of this.
CartsController.php
class CartsController extends AppController {
public $uses = array('Sidedish','Cart');
public function add() {
$this->autoRender = false;
if ($this->request->is('post')) {
$this->Cart->addProduct($this->request->data['Cart']['product_id']);
}
echo $this->Cart->getCount();
}
public function view() {
$carts = $this->Cart->readProduct();
$side_dishes = array();
if (null!=$carts) {
foreach ($carts as $productId => $count) {
$side_dish = $this->Sidedish->read(null,$productId);
$side_dish['Sidedish']['count'] = $count;
$side_dishes[]=$side_dish;
}
}
$this->set(compact('side_dishes'));
print_r($carts);
print_r($side_dishes);
}}
views/Orders.ctp -> this is where I will need to click the item to display in the cart.
<div class="col-sm-12">
<?php echo $this->Form->create('Cart',array('id'=>'add-form','url'=>array('controller'=>'carts','action'=>'add')));?>
<ul class="list-inline">
<?php foreach ($side_dish as $sidedish):?>
<li>
<?php echo $this->Form->hidden('product_id',array('value'=>$sidedish['Sidedish']['sidedish_id'])); ?>
<?php
echo $this->Form->submit(//$sidedish['Sidedish']['sidedish_id'],
'',array(
'name'=>'submit',
'style'=>'height:130px;width:200px;'
. 'background-repeat:no-repeat;'
. 'border:none;'
. 'background-image:url(/webapp' .$sidedish['Sidedish']['sidedish_img']. ')'));
?>
<h5 class="text-center"><?php echo $sidedish['Sidedish']['sidedish_name'];?></h5>
<h5 class="text-center">$<?php echo $sidedish['Sidedish']['sidedish_price'];?></h5>
</li>
<?php endforeach;?>
</ul>
<?php echo $this->Form->end();?>
</div>
Some people told me that the problem is the foreach loop in my views/orders.ctp and some people told me that the problem is in the controller. I'm not sure where is the problem here. please need help guys.

Answer 1

Can you please show your code for this function $this->Cart->addProduct()?
<?php
App::uses('AppModel', 'Model');
App::uses('CakeSession', 'Model/Datasource');
class Cart extends AppModel {
public $useTable = false;
/*
* add a product to cart
*/
public function addProduct($productId) {
$allProducts = $this->readProduct();
if (null!=$allProducts) {
if (array_key_exists($productId, $allProducts)) {
$allProducts[$productId]++;
} else {
$allProducts[$productId] = 1;
}
} else {
$allProducts[$productId] = 1;
}
$this->saveProduct($allProducts);
}
/*
* get total count of products
*/
public function getCount() {
$allProducts = $this->readProduct();
if (count($allProducts)<1) {
return 0;
}
$count = 0;
foreach ($allProducts as $product) {
$count=$count+$product;
}
return $count;
}
/*
* save data to session
*/
public function saveProduct($data) {
return CakeSession::write('cart',$data);
}
/*
* read cart data from session
*/
public function readProduct() {
return CakeSession::read('cart');
}
}