ItemController.php

<?php

class ItemController extends Controller
{
	...

	/**
	 * Creates a new item.
	 */
	public function actionCreate1()
	{
		$model = new Item();
		if (isset($_POST['Item']))
		{
			$model->attributes = $_POST['Item'];

			if ($file = CUploadedFile::getInstance($model, 'image'))
				$model->image = $this->uniqId.'.'.$file->extensionName;

			if ($model->save())
			{
				$file->saveAs(Yii::app()->basePath.'/../images/'.$model->image);
				$this->redirect(array('index'));
			}
		}

		$this->render('_form', compact('model'));
	}

	/**
	 * Creates a new item.
	 */
	public function actionCreate2()
	{
		$model = new Item();
		if (isset($_POST['Item']))
		{
			$model->attributes = $_POST['Item'];
			if ($model->validate())
			{
				$file = CUploadedFile::getInstance($model, 'image');
				$model->image = $this->uniqId.'.'.$file->extensionName;

				$model->save(false);
				$file->saveAs(Yii::app()->basePath.'/../images/'.$model->image);

				$this->redirect(array('index'));
			}
		}

		$this->render('_form', compact('model'));
	}

	...