使用YiiMongoDbSuite删除数组元素

I have some code that should be deleting a record from an embedded MongoDB document.

Here is the code:

    public function actionDeleteSaved()
    {
        $savedLink = $_POST['savedLink'];
        $userId = Yii::app()->user->getId();
        $current = SaveLink::model()->findByPk($userId);

        if(in_array($savedLink, $current->links))
        {
            array_slice($current->links, $savedLink);
            $current->save();
        }
    }

This is what is passing the data to the controllers action method:

echo CHtml::ajaxButton(
        'delete', 
        Yii::app()->createUrl("dashboard/index/deletesaved"),
        array( // ajax options
            'type' => 'POST',
            'context' => "js:this",
            'data' => array(
                'savedLink' => $savedLink
            )
        ),
        array( //html options
            'class'=>'deleteSaved'
        )
    );

This is what renderPartial looks like:

        $this->renderPartial('_deleteSaved', array('savedLink'=>$s));

What I want being posted is being posted correctly but I'm not sure if it's communicating with the Controller and passing the data through or if my code for removing the data from the database is correct.

Any help would be greatly appreciated, thanks.

The problem is with array_slice part. As specified in php docs array slice does not modify array parameter.

Use array_splice instead (it modifies passed array param) and array_search to get key:

if(in_array($savedLink, $current->links))
{
        $key = array_search($savedLink, $current->links);
        array_splice($current->links, $key, 0);
        $current->save();
}

NOTE: If $current->links is embedded documents (objects) array, you might have to find $key and check if is in array some other way.