Estoy agregando campos de formulario dinámicos en Cambio de menú desplegable. Ambos tipos de campos provienen de diferentes modelos y van a la base de datos en diferentes tablas. Ya he definido las reglas de validación en los modelos.

Pero la validación no funciona correctamente. Mi código es el siguiente:

Modelo:

<?php

namespace common\models;

use Yii;

/**
 * This is the model class for table "{{%membership_features}}".
 *
 * @property integer $id
 * @property string $title
 * @property string $type
 * @property integer $is_new
 * @property integer $status
 * @property integer $is_deleted
 * @property string $created_date
 * @property string $modified_date
 *
 * @property MembershipFeaturesValue[] $membershipFeaturesValues
 */
class MembershipFeatures extends \yii\db\ActiveRecord
{
    /**
     * @inheritdoc
     */

    public $value=[];
    public static function tableName()
    {
        return '{{%membership_features}}';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['title', 'type', 'value','is_new', 'status'], 'required'],
            ['value', 'each', 'rule' => ['integer']],
            ['value', 'each', 'rule' => ['required']],
            [['is_new', 'status', 'value','is_deleted'], 'integer'],
            [['created_date', 'modified_date'], 'safe'],
            [['title', 'type'], 'string', 'max' => 255]
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => Yii::t('app', 'ID'),
            'title' => Yii::t('app', 'Title'),
            'type' => Yii::t('app', 'is boolean or value'),
            'is_new' => Yii::t('app', 'Is New'),
            'status' => Yii::t('app', 'Status'),
            'is_deleted' => Yii::t('app', 'Is Deleted'),
            'created_date' => Yii::t('app', 'Created Date'),
            'modified_date' => Yii::t('app', 'Modified Date'),
        ];
    }

    /**
     * @return \yii\db\ActiveQuery
     */
    public function getMembershipFeaturesValues()
    {
        return $this->hasMany(MembershipFeaturesValue::className(), ['feature_id' => 'id']);
    }
}

Controlador :

<?php

namespace backend\controllers;

use Yii;
use common\models\MembershipFeatures;
use backend\models\MembershipFeaturesSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use yii\web\Response;
use common\models\MembershipFeaturesValue;
use common\components\Helper;
/**
 * MembershipFeaturesController implements the CRUD actions for MembershipFeatures model.
 */
class MembershipFeaturesController extends Controller
{
    public function behaviors()
    {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['post'],
                ],
            ],
        ];
    }

    /**
     * Lists all MembershipFeatures models.
     * @return mixed
     */
    public function actionIndex()
    {
        $searchModel = new MembershipFeaturesSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        ]);
    }

    /**
     * Displays a single MembershipFeatures model.
     * @param integer $id
     * @return mixed
     */
    public function actionView($id)
    {
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

    /**
     * Creates a new MembershipFeatures model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return mixed
     */
    public function actionCreate()
    {
        $model = new MembershipFeatures();
        $membershipPlan = \common\models\MembershipPlan::allPlans();

        if(isset($_GET['type'])){
            $model->type =$_GET['type'];
        }
        if (Yii::$app->request->isAjax  && $model->load(Yii::$app->request->post())) {

            Yii::$app->response->format = Response::FORMAT_JSON;
            return \yii\widgets\ActiveForm::validate($model);
        }

        if ($model->load(Yii::$app->request->post()) ) {

            if( $model->save()){   
                foreach ($membershipPlan as $key=>$value) {
                    $feature = new MembershipFeaturesValue();
                    $feature->feature_id = $model->id;
                    $feature->plan_id = $key;
                    $feature->value =$model->value[$key];
                    $feature->save();
                }
            }



            return $this->redirect(['index']);
        } 
            return $this->render('create', [
                'model' => $model,
                'membershipPlan'=>$membershipPlan,

            ]);

    }

    /**
     * Updates an existing MembershipFeatures model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id
     * @return mixed
     */
    public function actionUpdate($id)
    {    
        $membershipPlan = \common\models\MembershipPlan::allPlans();    
        $model = $this->findModel($id);

        $selected = MembershipFeaturesValue::find()->where(['feature_id'=>$model->id])->all();
        foreach ($selected as $key => $value) {
                $model->value[$value->plan_id]=$value->value;
        }    

        if(isset($_GET['type'])){
            $model->type =$_GET['type'];
        }
        if(Yii::$app->request->isAjax  && $model->load(Yii::$app->request->post())) {

            Yii::$app->response->format = Response::FORMAT_JSON;
            return \yii\widgets\ActiveForm::validate($model);
        }

        if ($model->load(Yii::$app->request->post()) ) {

            if( $model->save()){  

                foreach ($membershipPlan as $key=>$value) {
                    $feature = MembershipFeaturesValue::find()->where(['feature_id'=>$model->id,'plan_id'=>$key])->one();
                    $feature->value =$model->value[$key];
                    $feature->save();
                }
            }



            return $this->redirect(['index']);
        }  

        return $this->render('update', [
                'model' => $model,
                'membershipPlan'=>$membershipPlan,

            ]);

    }

    /**
     * Deletes an existing MembershipFeatures model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     * @param integer $id
     * @return mixed
     */
    public function actionDelete($id)
    {
        Helper::partialDelete('MembershipFeatures',$id);

        return $this->redirect(['index']);
    }

    /**
     * Finds the MembershipFeatures model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param integer $id
     * @return MembershipFeatures the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = MembershipFeatures::findOne($id)) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('The requested page does not exist.');
        }
    }
}

Forma:

<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;
use yii\widgets\Pjax;
use yii\helpers\Url;
/* @var $this yii\web\View */
/* @var $model common\models\MembershipFeatures */
/* @var $form yii\widgets\ActiveForm */
?>

<div class="membership-features-form">

    <?php $form = ActiveForm::begin([   
    'enableAjaxValidation' => true,
    'enableClientValidation'=>true,
    'validateOnSubmit'=>true,   
    'options' => ['data-pjax'=>true]]); ?>
    <?= $form->errorSummary($model); ?>
    <?= $form->field($model, 'title')->textInput(['maxlength' => true]) ?>

    <?= $form->field($model, 'type')->dropDownList(['boolean'=>'Boolean','value'=>'Value'],
        [
        'onchange'=>'
            $.pjax.reload({
            url: "'.Url::to(['create']).'?type="+$(this).val(),
            container: "#pjax-memfeature-form",
            timeout: 1000,
            });
        ',

        'class'=>'form-control',
        'prompt' => 'Select Type Of Value'
        ]) ?>

        <?php  Pjax::begin(['id'=>'pjax-memfeature-form','enablePushState'=>false]);     ?> 
        <?php 
            if($model->type==='boolean'){
                foreach ($membershipPlan as $key => $value) {
                    echo $form->field($model, "value[$key]")->checkbox(array(
                                'label'=>"$value",
                                'labelOptions'=>array('style'=>'padding:5px;'),

                                )); 
                }    
            }
            if($model->type==='value'){
                foreach ($membershipPlan as $key => $value) {
                  echo $form->field($model, "value[$key]")->textInput()->label("$value"); 
                }
            }
        ?>

         <?php Pjax::end(); ?>        
    <?= $form->field($model, 'is_new')->dropDownList(['0'=>'No','1'=>'Yes']) ?>

    <?= $form->field($model, 'status')->dropDownList(['1'=>'Active','0'=>'Inactive']) ?>

    <div class="form-group">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
         <?= Html::a(Yii::t('app', 'Cancel'), ['/membership-features/'], ['class' => 'btn btn-danger']) ?>
    </div>

    <?php ActiveForm::end(); ?>

</div>

Quiero validar mivalor campo que se agrega dinámicamente cuando cambio el tipo desplegable usando Pjax. Guíeme un método correcto para validar campos de formulario agregados dinámicamente.