/**
* @param string $alias
* @param mixed $setting
* @return Field|NULL
* @throws Exception
*/
public static function fromJSONAliasSetting($alias, $setting)
{
$fieldSetting = NULL;
if (!isset($setting['resources'])) {
// not many-to-one
$field = isset($setting['field']) ? $setting['field'] : $alias;
$type = isset($setting['type']) ? Type\Variable::typeFromString($setting['type']) : Type\Variable::STRING;
if (!isset($type)) {
throw new Exception(Exception::Config, "Type '{$setting['type']}' is invalid for alias '{$alias}'");
}
$fieldSetting = Settings::field($alias, $field, $type);
}
return $fieldSetting;
}
