Retrieving transitionable states

An array of transitionable states can be retrieved with the transitionableStates() method on your model.

class Payment extends Model
{
    // …

    protected function registerStates(): void
    {
        $this->addState('state', PaymentState::class)
            ->allowTransition(Pending::class, Paid::class)
            ->allowTransition(Paid::class, Refunded::class)
    }
}

$transitionableStates = $payment->transitionableStates(Pending::class);

This will return an array with all transitionable states for Pending::class

[
    0 => "paid"
]

##Transitionable states from state

It's also possible to use transitionableStates() method directly on a state:

$payment->state->transitionableStates();

##Multiple state fields on model

If there are multiple fields, a \Spatie\ModelStates\Exceptions\InvalidConfig exception will be thrown. You can pass the state field name explicitly as a parameter:

// From a model
$payment->transitionableStates(Pending::class, 'fieldName')

// From a state
$payment->state->transitionableStates('fieldName');