<div> <h1><?php echo Html::encode($this->title); ?> </h1> <?php $form = ActiveForm::begin(['id' => 'book-form', 'options' => ['class' => 'form-horizontal', 'method' => 'POST'], 'fieldConfig' => ['template' => "{label}\n<div class=\"col-lg-3\">{input}</div>\n<div class=\"col-lg-8\">{error}</div>", 'labelOptions' => ['class' => 'col-lg-1 control-label']]]); ?> <?php echo $form->field($model, 'name'); ?> <?php echo $form->field($model, 'author_id')->dropDownList(\app\models\Author::lists()); ?> <?php echo $form->field($model, 'preview'); ?> <div class="form-group"> <div class="col-lg-offset-1 col-lg-11"> <?php echo Html::submitButton('Save', ['class' => 'btn btn-primary', 'name' => 'login-button']); ?> </div> </div> <?php