/**
* Prepare collection for prototype by adding prototype as child
* @param FormField $field
*/
public function preparePrototype(FormField $field)
{
if (!$field->getOption('is_prototype')) {
throw new \InvalidArgumentException('Field [' . $field->getRealName() . '] is not a valid prototype object.');
}
$this->children = [];
$this->children[] = $field;
}
/**
* Get the title, used for validating a rule
*
* @param string $rule
* @param array $params
* @return string
*/
protected function getTitle($rule, $params = array())
{
$params['attribute'] = $this->field->getOption('label');
return $this->formHelper->getTranslator()->trans('validation.' . $rule, $params);
}
