/**
* Renders the values as a json object.
*
* @return string
*/
public function render()
{
$options = 0;
$options |= $this->prettyPrint ? JSON_PRETTY_PRINT : 0;
if ($this->hasErrors()) {
$json = json_encode(['errors' => $this->getErrorStack()], $options);
} else {
$json = json_encode($this->values, $options);
}
if (json_last_error() !== JSON_ERROR_NONE) {
$errorStack = new ErrorStack();
$errorStack->addError('Invalid JSON');
$json = json_encode(['errors' => $errorStack->getErrors()], $options);
}
return $json;
}
/**
* @return ErrorStack
*/
protected function getErrorStack()
{
return $this->hasErrors() ? $this->errors->getErrors() : [];
}
/**
* @param ErrorStack $messageStack
*/
public function merge(ErrorStack $messageStack)
{
$this->errors = array_merge($this->errors, $messageStack->getErrors());
}
