<?php
$dbTransaction = $Yii::app()->db->getCurrentTransaction();
if (!$dbTransaction) {
	$dbTransaction = Yii::app()->db->beginTransaction();
}

$productModel = new Product;
$productModel->attributes = $prodAttrs;
if (!$productModel->save()) {
	$dbTransaction->rollback();
	throw new CException("some");
}

foreach ($productModes as $productModeAttrs) {
	$productModeModel = new productMode;
	$productModeModel->attributes = $productModeAttrs;
	$productModeModel->product_id = $productModel->id;
	if (!$productModeModel->save()) {
		$dbTransaction->rollback();
		throw new CException("some");
	}
}

// похожее с фото товаров

$dbTransaction->commit();

// redirect/render/return метода контроллера