Deletebypk() 函数返回值疑问？

International Chinese
1

/**

 * 删除文章


 * @param int $id


 */


public function actionDel($type, $id) {


	if($type::model()->deleteByPk($id)) { // 执行和判断删除语句


		Yii::app()->user->setFlash('success','删除文章成功');


		$this->redirect('./index.php?r=ytadmin/Content/index&='.$type);


	} else {


		Yii::app()->user->setFlash('success','删除文章失败'); // 总是走这个


		$this->redirect('./index.php?r=ytadmin/Content/index&type='.$type);


	}


}

上面的我写的删除文章的函数，操作是可以成功的，去数据库看了下，也是删除了的，但是让人不明的的就是删除后的返回值是0，为什么呢？我明明删除成功了呀？求解。。。。

2 



public function deleteByPk($pk,$condition='',$params=array())

{

    Yii::trace(get_class($this).'.deleteByPk()','system.db.ar.CActiveRecord');

    $builder=$this->getCommandBuilder();

    $criteria=$builder->createPkCriteria($this->getTableSchema(),$pk,$condition,$params);

    $command=$builder->createDeleteCommand($this->getTableSchema(),$criteria);

    return $command->execute();

}

$command->execute(); Executes the SQL statement. This method is meant only for executing non-query SQL statement. No result set will be returned.

Is your database is MySQL?

3

Maybe you can try $type::model()->findByPk($id)->delete(); Which will return Boolean value.

See source code at:

It shows $n=$this->_statement->rowCount(); Not all database will return this value correctly.