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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\rest;
use Yii;
use yii\base\Model;
use yii\db\ActiveRecord;
/**
* UpdateAction implements the API endpoint for updating a model.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class UpdateAction extends Action
{
/**
* @var string the scenario to be assigned to the model before it is validated and updated.
*/
public $scenario = Model::SCENARIO_DEFAULT;
/**
* @var boolean whether to start a DB transaction when saving the model.
*/
public $transactional = true;
/**
* Updates an existing model.
* @param string $id the primary key of the model.
* @return \yii\db\ActiveRecordInterface the model being updated
* @throws \Exception if there is any error when updating the model
*/
public function run($id)
{
/** @var ActiveRecord $model */
$model = $this->findModel($id);
if ($this->checkAccess) {
call_user_func($this->checkAccess, $this->id, $model);
}
$model->scenario = $this->scenario;
$model->load(Yii::$app->getRequest()->getBodyParams(), '');
if ($this->transactional && $model instanceof ActiveRecord) {
if ($model->validate()) {
$transaction = $model->getDb()->beginTransaction();
try {
$model->update(false);
$transaction->commit();
} catch (\Exception $e) {
$transaction->rollback();
throw $e;
}
}
} else {
$model->save();
}
return $model;
}
}