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I'm observing email_invoice_set_template_vars_before event.

And i want to alter event data. I'm doing it like this:

$transport = $observer->getData('transport');

doMagic($transport);

$observer->setData('transport', $transport);

But, it won't alter the data. Outside of my observer.


I'm using very similar approach with email_order_set_template_vars_before event. Just with difference, that transport is object with setter and getters.

1 Answer 1

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Not exact answer, but i solved it by creating plugin for

\Magento\Sales\Model\Order\Email\Container\Template

and creating

public function aroundSetTemplateVars(
    \Magento\Sales\Model\Order\Email\Container\Template\Interceptor $subject,
    callable $proceed,
    array $vars
) 

That way i can alter e-mail variables.

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