Yii2 Convert from integer to datetime to display and save into database with integer

Question

I have a table with column for_date saved by type integer in database. In order to show for_date with format DateTime, I used ActiveForm with code:

<?= $form->field($model, 'for_date')->textInput([
    'class' => 'form-control datepicker',
    'value' => $model->for_date ? date(Yii::$app->params['dateFormat'], $model->for_date) : date(Yii::$app->params['dateFormat'], time()),
    'placeholder' => 'Time'])
    ->label('Attendance Date') ?>

But when I create and save, Yii informed This field must be integer

In model file, I had 2 functions below to convert before validate, but it's still error.

public function beforeValidate(){
    if(!is_int($this->for_date)){
        $this->for_date = strtotime($this->for_date);
        $this->for_date = date('d/M/Y', $this->for_date);
    }
    return parent::beforeValidate();
}

public function afterFind(){
    $this->for_date = \Yii::t('app', Yii::$app->formatter->asDate($this->for_date));
    $this->for_date = date('d/M/Y', $this->for_date);
    return parent::afterFind();
}

How can I make it right to save into database with integer?

Answer 1

I found solution. In the Model Search (my case is AttendanceSearch.php), find rules function and move for_date from line have integer to below lines have safe

My Code:

public function rules()
    {
        return [
            [['id', 'user_id', 'project_id', 'commit_time', 'workload_type'], 'integer'],
            [['comment', 'for_date'], 'safe'],
        ];
    }