Trigger event before checkout

[sandomatyas]

I manage a webshop which uses some external data feed to update the stock. The sync srcipt runs hourly.
I want to run a script right before storing the order to check again if the product stock is available in the external feed.
Is there a way to do that?

[Milbo]

family vmshopper, vmextended
trigger plgVmOnUserOrder

[sandomatyas]

Hi Milbo,
Thank you for your answer.
I checked it but this method is triggered in the _createOrder method of VirtueMartModelOrders class so I think it's too late for me. I want to check it before the order creation process because if the product is out of stock I want to redirect the user back to the cart with a message. Or have I missed something?

[Studio 42]

Hi,
you can use create an empty shipment plugin with only this function
plgVmOnCheckoutCheckDataShipment, this is the last trigger before real confirm.
in plgVmConfirmedOrder  the order is already created.
I have(had) the same problem and had to trick a little to find a way without adding my own trigger because checkoutData() do not give from where you call it, so you need to verify other values, to find out if you are in ConfirmedOrder or not .I use if( !$cart->_dataValidated) return;.

[Milbo]

Can we change another trigger to solve this issue? and where would you place the new trigger, Patrick?

[Studio 42]

I don't think we need a new trigger.
in cart helper

Code Select Expand

function confirmDone() {
...
$this->checkoutData(false, true);
...

Code Select Expand

public function checkoutData($redirect = true,$onConfirm = false) {
....

$retValues = $dispatcher->trigger('plgVmOnCheckoutCheckDataShipment', array(  $this, $onConfirm));
....

$retValues = $dispatcher->trigger('plgVmOnCheckoutCheckDataPayment', array( $this, $onConfirm));
}


or if adding a new generic trigger (for customs, userfields ...) always in public function checkoutData :

Code Select Expand

$retValues = $dispatcher->trigger('plgVmOnCheckoutCheckData', array(  $this, $onConfirm));