CakePHP: value not being saved to Db

Question

I am trying to use Andras Kende's CakePHP Shopping Cart in my own application, and I cant figure why the following changes will not work.

At the end of the order process, after paypal and everything, when the user is about to finalize the transaction, I would like to, if the user is a member/logged in, use $this->Auth->user('id') to get their authenticated ID and attach it to the order that is about to be finalized. For the life that is left in me, I can't get it to work. This is what I am doing:

I have the following class:

    public function review() {
    $shop = $this->Session->read('Shop');       
    if(empty($shop)) {
        $this->redirect('/shop/cart');
    }
    if ($this->request->is('post')) {
        $this->loadModel('Order');
        $this->Order->set($this->request->data);
        if($this->Order->validates()) {
            $order = $shop;
            $order['Order']['user_id'] = (int)$this->Auth->user('id');
            $order['Order']['status'] = 1;

            var_dump($order);

            if($shop['Order']['order_type'] == 'paypal') {
                $paypal = $this->Paypal->ConfirmPayment($order['Order']['total']);
                $ack = strtoupper($paypal['ACK']);
                if($ack == 'SUCCESS' || $ack == 'SUCCESSWITHWARNING') {
                    $order['Order']['status'] = 2;
                }
                $order['Order']['authorization'] = $paypal['ACK'];
            }
            $save = $this->Order->saveAll($order, array('validate' => 'first'));
            if($save) {
                $this->set(compact('shop'));
                App::uses('CakeEmail', 'Network/Email');
                $email = new CakeEmail();
                $email->from($this->requestAction('/settings/getSettingValue/ADMIN_EMAIL'))
                        ->cc($this->requestAction('/settings/getSettingValue/ADMIN_EMAIL'))
                        ->to($shop['Order']['email'])
                        ->subject('Shop Order')
                        ->emailFormat('text')
                        ->viewVars(array('shop' => $shop))
                        ->send();
                $this->redirect(array('action' => 'success'));
            } else {
                $errors = $this->Order->invalidFields();
                $this->set(compact('errors'));
            }
        }           
    }
    if(($shop['Order']['order_type'] == 'paypal') && !empty($shop['Paypal']['Details'])) {
        $shop['Order']['first_name'] = $shop['Paypal']['Details']['FIRSTNAME'];
        $shop['Order']['last_name'] = $shop['Paypal']['Details']['LASTNAME'];
        $shop['Order']['email'] = $shop['Paypal']['Details']['EMAIL'];
        $shop['Order']['phone'] = '888-888-8888';
        $shop['Order']['billing_address'] = $shop['Paypal']['Details']['SHIPTOSTREET'];
        $shop['Order']['billing_address2'] = '';
        $shop['Order']['billing_city'] = $shop['Paypal']['Details']['SHIPTOCITY'];
        $shop['Order']['billing_zip'] = $shop['Paypal']['Details']['SHIPTOZIP'];
        $shop['Order']['billing_state'] = $shop['Paypal']['Details']['SHIPTOSTATE'];
        $shop['Order']['billing_country'] = $shop['Paypal']['Details']['SHIPTOCOUNTRYNAME'];
        $shop['Order']['shipping_address'] = $shop['Paypal']['Details']['SHIPTOSTREET'];
        $shop['Order']['shipping_address2'] = '';
        $shop['Order']['shipping_city'] = $shop['Paypal']['Details']['SHIPTOCITY'];
        $shop['Order']['shipping_zip'] = $shop['Paypal']['Details']['SHIPTOZIP'];
        $shop['Order']['shipping_state'] = $shop['Paypal']['Details']['SHIPTOSTATE'];
        $shop['Order']['shipping_country'] = $shop['Paypal']['Details']['SHIPTOCOUNTRYNAME'];
        $shop['Order']['order_type'] = 'paypal';
        $this->Session->write('Shop.Order', $shop['Order']);
    }
    $this->set(compact('shop'));
}

At line 11, I add the logged in user ID to the $order array by doing the following:

$order['Order']['user_id'] = (int)$this->Auth->user('id');

At this point if I do a var_dump($order) , I will see whatever user id is for the currently logged in user, in this case 18 . So I know for a fact that I am assigning it correctly.

 ["user_id"]=> int(18)

Everything is fine up to here. However, when I check my DB the user_id field is NULL. 18 is not being saved as added to the array. I have done multiple things and I cant see what am I doing wrong. Please help!

My orders table structure look like this:

And one of the order entry look like this:

I run out of ideas and I dont know what to do.....

Answer 1

After some more digging, I decided to change the Db field to user instead of user_id and it worked. Why isnt it taking user_id . My user model $hasMany = array('Order'=>array('foreignKey' => 'user')) . It would be STANDARD to use user_id . I just cant figure out why it is not allowing it. So far the fix works!