Post back fields about validation

[adrianmiu]

@tmblog Sorry but this is something that you have to implement in your application and it depends on how the data flows. Some applications redirects to the previous URL and store the form values in session. Others don't redirect and show the same form on the same request

[tmblog]

Thanks for the reply. The documentation seems to be down now and again. I am trying to figure out how to validate a pair of radion buttons e.g. one must be required then one of them has a dependents:

cash-payment or card-payment is required if card-payment is selected then:

'card-number:Card' => 'requiredWith(card-payment)',
'card-expiry:Expiry' => 'requiredWith(card-payment)',
'card-cvc:CVC' => 'requiredWith(card-payment)',

Can you help?
Thanks again.

[adrianmiu]

@tmblog Thanks for reporting the documentation issue. It's fixed now

Regarding your question, there are 2 ways to do it. One that works 100% is a hack

if ($_POST['payment'] == 'card_payment') {
    $validator->add([
       'card-number:Card' => 'required'
   ]);
}

The other involves using the requiredWhen (ie: make a field required when some other conditions is met) and it is more complex than what I've used for testing so it might not work

$requiredWhenCardPaymentOptions = [
   'item' => 'payment',
   'rule' => 'equal',
   'rule_options' => ['value' => 'card-payment']
];
$validator->add('card-number:Card', 'requiredWhen', $requiredWhenCardPaymentOptions);

The shorter version should be

$validator->add('card-number:Card', 'requiredWhen({"item":"payment","rule":"equal","rule_options":{"value":"card-payment"}})');

[tmblog]

This is perfect, they both work thank you! And thanks for sorting docs out.