yii2 How to transfer data from one controller method to another

There are 2 actions in one controller. The first form is the choice of checkboxes. The second form is the output of these checkboxes. How to transfer the values ​​from one form to another in order to turn them over there - a person has noted or not.

The problem is that the data is not stored in the database. In the model, created custom public variables and added to the rules. In the first form, I collect ActiveForm data, that is, I can transfer it to the controller method. Now how can I transfer all my fields to another action ??

The first form and method

public function actionExport($id) { return $this->renderAjax('/objects/export', ['model' => $this->findModel($id)]); } 

and method

  <?php $form = \yii\widgets\ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data'], 'enableClientValidation' => false, 'enableAjaxValidation' => true, ]) ?> <p><label><input type="checkbox" id="export"/> Все уведомления</label></p> <div id="checkbox_export"> <?= $form->field($model, 'export_realtor')->checkbox() ?> <?= $form->field($model, 'export_address')->checkbox() ?> <?= $form->field($model, 'export_attributes')->checkbox() ?> <?= $form->field($model, 'export_square')->checkbox() ?> <?= $form->field($model, 'export_levels')->checkbox() ?> <?= $form->field($model, 'export_price')->checkbox() ?> <?= $form->field($model, 'export_info')->checkbox() ?> </div> <?php \yii\widgets\ActiveForm::end(); ?> <?= \yii\helpers\Html::a('PDF', ['pdf', 'id' => $model->id], ['class' => 'btn btn-primary btn-sm', 'target' => '_blank']) ?> <?= \yii\helpers\Html::a('Напечатать', ['pdf', 'id' => $model->id], ['class' => 'btn btn-primary btn-sm', 'target' => '_blank']) ?> <?php $script = <<< JS $("#export").change(function () { $("#checkbox_export input:checkbox").prop('checked', $(this).prop("checked")); }); JS; $this->registerJs($script); ?> 

And the second form renders a pdf file

  public function actionPdf($id) { $pdf = new Pdf([ 'mode' => Pdf::MODE_UTF8, 'content' => $this->renderPartial('/objects/pdf', ['id' => $id, 'model' => $model = $this->findModel($id)]), 'options' => [ 'title' => 'Text', 'subject' => 'Text' ], 'methods' => [ 'SetHeader' => ['Generated By: Krajee Pdf Component||Generated On: ' . date("r")], 'SetFooter' => ['|Page {PAGENO}|'], ] ]); return $pdf->render(); } 

Data on this pdf in the view / objects / pdf '. Here you now need to check whether the checkbox is checked - <

 ?php if($model->export_realtor): ?> .... <?php endif; ?>