/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = IslandGroup::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     if (!$this->validate()) {
         // uncomment the following line if you do not want to return any records when validation fails
         // $query->where('0=1');
         return $dataProvider;
     }
     $query->andFilterWhere(['island_id' => $this->island_id]);
     $query->andFilterWhere(['like', 'island_name', $this->island_name]);
     return $dataProvider;
 }
?>

<div class="region-form">

    <?php 
$form = ActiveForm::begin();
?>

    <?php 
echo $form->field($model, 'region_name')->textInput(['maxlength' => true]);
?>

    

    <?php 
$islandgroup = IslandGroup::find()->all();
$listData = ArrayHelper::map($islandgroup, 'island_id', 'island_name');
echo $form->field($model, 'island_id')->dropDownList($listData, ['prompt' => 'Select Island where you belong']);
?>

    <div class="form-group">
        <?php 
echo Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']);
?>
    </div>

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

</div>