public static function getConfigChildHtml($configKey)
{
$config = [];
# get config from module param
if ($module = Yii::$app->controller->module) {
$module_config = CModule::param("block");
if (isset($module_config[$configKey])) {
$config = $module_config[$configKey];
}
}
# if module config param is empty or not exist,
# get config from application
if (empty($config)) {
$app_config = CConfig::param("block");
if (isset($app_config[$configKey])) {
$config = $app_config[$configKey];
}
}
if (!isset($config['view']) || empty($config['view'])) {
throw new InvalidConfigException('view and class must exist in array config!');
} else {
return self::getChildHtml($config);
}
}