/**
* @inheritdoc
*/
protected function createChildren()
{
if ($this->getOption('choices')) {
return parent::createChildren();
}
$entity = $this->getOption('class');
$queryBuilder = $this->getOption('query_builder');
$key = $this->getOption('property_key');
$value = $this->getOption('property');
if (!$entity || !class_exists($entity)) {
throw new \InvalidArgumentException(sprintf('Please provide valid "class" option for entity field [%s] in form class [%s]', $this->getRealName(), get_class($this->parent)));
}
$entity = new $entity();
if ($queryBuilder instanceof \Closure) {
$data = $queryBuilder($entity);
if (is_object($data) && method_exists($data, 'lists')) {
$data = $data->lists($value, $key);
}
} else {
$data = $entity->lists($value, $key);
}
$this->options['choices'] = $data;
return parent::createChildren();
}
