Yii2 - ActiveForm ajax submit - ajax

Question

How can i use ActiveForm with these requirements?
Submit form with ajax.
Before submitting with ajax: Check if error exits.
After submitting: Display error of field under field's input if the server responses unsuccess saving result.

Answer 1

This is your form in view. I prefer use different actions for validation and saving. You can join them into single method.
<?php $form = \yii\widgets\ActiveForm::begin([
'id' => 'my-form-id',
'action' => 'save-url',
'enableAjaxValidation' => true,
'validationUrl' => 'validation-rul',
]); ?>
<?= $form->field($model, 'email')->textInput(); ?>
<?= Html::submitButton('Submit'); ?>
<?php $form->end(); ?>
In validation action you should write. It validates your form and returns list of errrs to client. :
public function actionValidate()
{
$model = new MyModel();
$request = \Yii::$app->getRequest();
if ($request->isPost && $model->load($request->post())) {
\Yii::$app->response->format = Response::FORMAT_JSON;
return ActiveForm::validate($model);
}
}
And this is save action. In validate input data for security:
public function actionSave()
{
$model = new MyModel();
$request = \Yii::$app->getRequest();
if ($request->isPost && $model->load($request->post())) {
\Yii::$app->response->format = Response::FORMAT_JSON;
return ['success' => $model->save()];
}
return $this->renderAjax('registration', [
'model' => $model,
]);
}
This code will validate your form in actionValidate() and. For submitting your form via AJAX use beforeSubmit event. In your javascript file write:
$(document).on("beforeSubmit", "#my-form-id", function () {
// send data to actionSave by ajax request.
return false; // Cancel form submitting.
});
That's all.

Answer 2

Submit form with ajax.
Before submitting with ajax: Check if error exits. yii display error if any by default....... :)
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;
use yii\widgets\Pjax;
/* #var $this yii\web\View */
/* #var $model backend\models\search\JobSearch */
/* #var $form yii\bootstrap\ActiveForm */
?>
<div class="job-search">
<?php $form = ActiveForm::begin([
'action' => ['index'],
//'method' => 'get',
'options' => ['id' => 'dynamic-form111']
]); ?>
<?php echo $form->field($searchModel, 'id') ?>
<?php echo $form->field($searchModel, 'user_id') ?>
<?php echo $form->field($searchModel, 'com_id') ?>
<?php echo $form->field($searchModel, 'job_no') ?>
<?php echo $form->field($searchModel, 'court_id') ?>
<?php // echo $form->field($model, 'case_no') ?>
<?php // echo $form->field($model, 'plainttiff') ?>
<?php // echo $form->field($model, 'defendant') ?>
<?php // echo $form->field($model, 'date_fill') ?>
<?php // echo $form->field($model, 'court_date') ?>
<?php // echo $form->field($model, 'status_id') ?>
<?php // echo $form->field($model, 'created_at') ?>
<?php // echo $form->field($model, 'updated_at') ?>
<div class="form-group">
<?php echo Html::submitButton('Search', ['class' => 'btn btn-primary','id'=>'submit_id']) ?>
<?php echo Html::resetButton('Reset', ['class' => 'btn btn-default']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
<script type="text/javascript">
$(document).ready(function () {
$('body').on('beforeSubmit', 'form#dynamic-form111', function () {
var form = $(this);
// return false if form still have some validation errors
if (form.find('.has-error').length)
{
return false;
}
// submit form
$.ajax({
url : form.attr('action'),
type : 'get',
data : form.serialize(),
success: function (response)
{
var getupdatedata = $(response).find('#filter_id_test');
// $.pjax.reload('#note_update_id'); for pjax update
$('#yiiikap').html(getupdatedata);
//console.log(getupdatedata);
},
error : function ()
{
console.log('internal server error');
}
});
return false;
});
});
</script>