failter and sort virtual date

_columns.php

<?php
[
    'class'=>'\kartik\grid\DataColumn',
    'attribute'=>'date_tmp',
    'filterType'=>GridView::FILTER_DATE,
    'format'=>'raw',
    'filterWidgetOptions'=>[
       'pluginOptions'=>['format'=>'dd.mm.yyyy'],
    ],
],

Model.php

<?php
public function rules()
{
    return [
        ...
        [['date_tmp'], 'safe'],
    ];
}


public function getDate_tmp(){return ($this->date?date('d.m.Y',$this->date):null);}
public function setDate_tmp($value){$this->date = strtotime($value);}

ModelSearch.php

<?php
public $date_tmp;
public function rules()
{
    return [
        ...
        [['date_tmp'], 'safe'],
    ];
}

public function search($params)
{
    ...
    $dataProvider->sort->attributes['date_tmp'] = [
        'asc' => ['date' => SORT_ASC],
        'desc' => ['date' => SORT_DESC],
        'default' => SORT_ASC
    ];
    $query->andFilterWhere([
        'between','date',strtotime($this->date_tmp),strtotime($this->date_tmp.' +1day')
    ]);

    ...
}