get order status from order id, email and customer's last name

Question

I'm currently looking for a method from which I can get the order status based on the order id, customer email and customer last name.

I'd written this code so far

public function orderHistoryAction(){
    $req = $this->getRequest();
    $oid = $req->getParam('oid', '');
    $lnm = $req->getParam('lnm', '');
    $eml = $req->getParam('eml', '');

    $order = Mage::getModel('sales/order')->loadByIncrementId($oid);
    if ($order->getId()) {
        if ((strcasecmp($lnm, $order->getCustomerLastname()) == 0) && (strcasecmp($eml, $order->getCustomerEmail()) == 0)) {
            echo $order->getStatusLabel();
        } else {
            echo 'invalid';
        }
    } else {
        echo 'invalid';
    }
}

and is working well for both customer and guest. But this doesn't seems to me the right approach. I supposed to used something like written in this blog or this blog. If anybody could make me correct?

Answer 1

If you want to use collections you can get your order object like this:

$collection = Mage::getModel('sales/order')->getCollection()
    ->addAttributeToFilter('increment_id', $oid)
    ->addAttributeToFilter('customer_lastname', $lnm)
    ->addAttributeToFilter('customer_email', $eml);
$order = $collection->getFirstItem();
if ($order->getId()) { 
    echo $order->getStatusLabel();
}
else {
    echo 'invalid';
}

But it's kind of the same thing that you did.
I even thing your approach is faster.
In your case you run a select like this.

SELECT * FROM sales_flat_order WHERE increment_id = '100000005';

In the approach I described you run something like this:

SELECT * FROM sales_flat_order WHERE increment_id = '100000005' AND customer_lastname='DOE' AND customer_email = 'john.doe@example.com';

There is no need for the additional conditions since the increment_id must be unique.

Answer 2

Like Marius said, you don't need a collection for this specific case. If you have to list several order status, then you would use a collection. To make your code more generic (so that you can use it with collections), I would change the interface a little bit:

public function getOneOrderHistoryAction() {
    // extract the parameters from $this->request and pass on
    ...
    return $this->getOrderHistory($oid, $nlm, $eml);
}

public function getOrderHistory($oid, $nlm, $eml) {
    // use the arguments provided
    ...
}    

Also, a small improvement maybe: I think you want strncasecmp.