add filters, update api, update api docs

backend/modules/questionnaire/views/user-response/_search_by_questionnaire.php

@@ -0,0 +1,38 @@
+<?php
+
+use backend\modules\questionnaire\models\Questionnaire;
+use backend\modules\questionnaire\models\UserQuestionnaire;
+use kartik\select2\Select2;
+use yii\helpers\Html;
+use yii\widgets\ActiveForm;
+
+/* @var $this yii\web\View */
+/* @var $model backend\modules\questionnaire\models\QuestionSearch */
+/* @var $form yii\widgets\ActiveForm */
+?>
+
+    <div class="question-search">
+
+        <?php $form = ActiveForm::begin([
+            'action' => ['index'],
+            'method' => 'get',
+        ]); ?>
+
+        <?= $form->field($model, 'user_questionnaire_uuid')->widget(Select2::className(),[
+//            'data' => Questionnaire::find()->select(['title', 'id'])->indexBy('id')->column(),
+            'data' => Questionnaire::find()->joinWith('userQuestionnaires')->select(['title', 'uuid',])->column(),
+            'options' => ['placeholder' => 'Выберите анкету'],
+            'pluginOptions' => [
+                'allowClear' => true
+            ],
+        ])->label('Анкета') ?>
+
+
+        <div class="form-group">
+            <?= Html::submitButton('Поиск', ['class' => 'btn btn-primary']) ?>
+        </div>
+
+        <?php ActiveForm::end(); ?>
+
+    </div>
+<?php

backend/modules/questionnaire/views/user-response/index.php

@@ -20,6 +20,13 @@ $this->params['breadcrumbs'][] = $this->title;
         <?= Html::a('Новый ответ пользователя', ['create'], ['class' => 'btn btn-success']) ?>
     </p>
 
+ <?php
+ //echo $this->render('_search_by_questionnaire', [
+//        'model' => $searchModel,
+//    ])
+ ?>
+
+
     <?= GridView::widget([
         'dataProvider' => $dataProvider,
         'filterModel' => $searchModel,