/**
* Reach the given step.
*
* @param ModelInterface $model
* @param Step $step
* @param ModelState $currentModelState
* @return ModelState
*/
protected function reachStep(ModelInterface $model, Step $step, ModelState $currentModelState = null)
{
try {
$this->checkCredentials($step);
} catch (AccessDeniedException $e) {
return $this->storage->newModelStateError($model, $this->process->getName(), $step->getName(), array($e), $currentModelState);
}
$errors = $this->executeValidations($model, $step->getValidations());
if (0 === count($errors)) {
$modelState = $this->storage->newModelStateSuccess($model, $this->process->getName(), $step->getName(), $currentModelState);
// update model status
if ($step->hasModelStatus()) {
list($method, $constant) = $step->getModelStatus();
$model->{$method}(constant($constant));
}
$eventName = sprintf('%s.%s.reached', $this->process->getName(), $step->getName());
$this->dispatcher->dispatch($eventName, new StepEvent($step, $model, $modelState));
} else {
$modelState = $this->storage->newModelStateError($model, $this->process->getName(), $step->getName(), $errors, $currentModelState);
$eventName = sprintf('%s.%s.validation_fail', $this->process->getName(), $step->getName());
$this->dispatcher->dispatch($eventName, new StepEvent($step, $model, $modelState));
if ($step->getOnInvalid()) {
$step = $this->getProcessStep($step->getOnInvalid());
$modelState = $this->reachStep($model, $step);
}
}
return $modelState;
}
