/**
* Возвращает обязательное поле коллекции.
* @param $fieldName
* @throws NonexistentEntityException если поле не существует
* @return IField
*/
protected function getRequiredField($fieldName)
{
if (!$this->metadata->getFieldExists($fieldName)) {
throw new NonexistentEntityException($this->translate('Collection "{collection}" does not contain required field "{name}".', ['collection' => $this->name, 'name' => $fieldName]));
}
return $this->metadata->getField($fieldName);
}
/**
* Конструктор.
* @param string $name имя
* @param array $config конфигурация
* @param IMetadata $metadata метаданные, к которым относится тип
* @throws UnexpectedValueException в случае неверно заданной конфигурации
*/
public function __construct($name, array $config, IMetadata $metadata)
{
$this->name = $name;
$this->metadata = $metadata;
if (isset($config['objectClass'])) {
$this->objectClassName = strval($config['objectClass']);
} else {
if ($parentType = $metadata->getParentType($this->name)) {
$this->objectClassName = $parentType->getObjectClass();
}
}
if ($parentType = $metadata->getParentType($this->name)) {
$this->fields = $parentType->getFields();
}
if (isset($config['fields'])) {
if (!is_array($config['fields'])) {
throw new UnexpectedValueException($this->translate('Type fields configuration should be an array.'));
}
foreach ($config['fields'] as $fieldName => $options) {
$this->fields[$fieldName] = $metadata->getField($fieldName);
}
}
}
/**
* {@inheritdoc}
*/
public function fields(array $fieldNames = [])
{
foreach ($fieldNames as $fieldName) {
if ($this->metadata->getFieldExists($fieldName)) {
$field = $this->metadata->getField($fieldName);
$this->fields[$fieldName] = $field;
} else {
throw new NonexistentEntityException($this->translate('Cannot select objects. Field "{name}" does not exist.', ["name" => $fieldName]));
}
}
return $this;
}