Как в Yii2 загрузка изображений и последующее хранение их имен в БД?

<?php
/**
 * Created by PhpStorm.
 * User: Jakeroid
 * Date: 17-Jul-15
 * Time: 13:28
 */

namespace app\modules\cp\models;

use app\models\Attachment;
use Yii;
use yii\base\Model;
use app\models\Team;

class TeamForm extends Model
{
    public $name;
    public $logo;

    /**
     * @var Team
     */
    private $dbModel;

    /**
     * @return array the validation rules.
     */
    public function rules()
    {
        return [
            [['name'], 'required'],
            [['name'], 'string', 'max' => 255],
            [['logo'], 'file', 'extensions' => 'gif, jpg, jpeg, png', 'skipOnEmpty' => false],
        ];
    }

    /**
     * @return array customized attribute labels
     */
    public function attributeLabels()
    {
        return [
            'name' => Yii::t('app', 'Team name'),
            'logo' => Yii::t('app', 'Team logo (flag)'),
        ];
    }

    /**
     * @param $is_update boolean
     * @return boolean from save method of dbModel
     */
    public function saveModel($is_update = false)
    {
        $attachment = new Attachment();
        $attachment->type = 'team_logo';
        $attachment->attachments_group_id = 0;
        $attachment->saveWithFile($this->logo);
        if ($is_update) {
            $this->dbModel->logo->delete();
        }
        $this->dbModel->logo_id = $attachment->id;
        $this->dbModel->name = $this->name;
        return $this->dbModel->save();
    }

    public function loadModel($model)
    {
        $this->dbModel = $model;
        $this->name = $model->name;
    }

    /**
     * @return Team from current dbModel
     */
    public function getModel()
    {
        return $this->dbModel;
    }
}

public function actionUpdate($id)
    {
        $model = new TeamForm();
        $model->loadModel($this->findModel($id));

        if ($model->load(Yii::$app->request->post())) {
            $model->logo = UploadedFile::getInstance($model, 'logo');
            if ($model->validate() && $model->logo) {
                $model->saveModel(true);
                return $this->redirect(['view', 'id' => $model->getModel()->id]);
            }
        }

        return $this->render('update', [
            'model' => $model,
        ]);
    }

public function actionUpdate($id) {
		$model = new Manufacturer();
		$model = $model->findOne($id);
		if (Yii::$app->request->post()) {
			$model->load(Yii::$app->request->post());
			$model->image1 = UploadedFile::getInstance($model, 'image1');
			if ( $model->image1 ) {
				$dir = $_SERVER['DOCUMENT_ROOT'] . '/upload/manufacturers/';
				if ( $model->upload($dir, $model->image1, $id) ) { /* set flash - file update is good */ }
				// Наследуем модель с "мягкими" rules
				$model = new ManufacturerDB();
				$model = $model->findOne($id);
				$model->load(Yii::$app->request->post());
				$model->setAttribute('image1', $id . '.jpg');
			} else {
				unset($model->image1);
			}
			$model->save();
			return $this->redirect(['view', 'id' => $id]);
		}
		return $this->render('update', [
			'model' => $model,
		]);
	}