Why jquery ajax post request get error in yii2? - ajax

Question

js:
$.ajax({
url: '/site/updateuserdata',
method: 'POST',
//async: true,
//cache:false,
data: {
'type': 'sort'
//val: val
//csrfParam: csrfToken
},
dataType: 'text',
error: function(jqXHR, textStatus, errorThrown) {
alert('error by ajax');
},
success: function(data, status, jqXHR) {
alert('success by ajax');
}
});
Controller:
public function behaviors()
{
return [
'access' => [
'class' => AccessControl::className(),
'rules' => [
[
'actions' => ['updateuserdata'],
'allow' => true,
// 'roles' => ['*'],
],
],
],
'verbs' => [
'class' => VerbFilter::className(),
'actions' => [
'updateuserdata' => ['post'],
],
],
];
}
public function actionUpdateuserdata()
{
/*if (Yii::$app->request->isAjax) {
$message = 'Ваше сообщение успешно отправлено';
Yii::$app->response->format = Response::FORMAT_JSON;
$response = [
'success' => true,
'message' => $message
];
return $response;
}*/
$f = fopen('testajax.txt','a+');
fwrite($f, 'ajax: '.(isset($_POST['type'])?$_POST['type']:'error'));
fclose($f);
if(isset($_POST['type']))
return $_POST['type'];
else return 'error1';
// return Yii::$app->getResponse()->redirect(Yii::$app->request->referrer, 302, FALSE);
}
yii.js:
function initRedirectHandler() {
// handle AJAX redirection
$(document).ajaxComplete(function (event, xhr) {
var url = xhr && xhr.getResponseHeader('X-Redirect');
alert(url); //my code
if (url) {
window.location.assign(url);
}
});
}
I see first alert(ajax error) "error by ajax" and then alert(yii.js) "..../site/updateuserdata...", why ajax error? File testajax.txt not create.
I tried comment 'updateuserdata' => ['post'], and get error too.
Updated.
Also, tried:
public function beforeAction($action)
{
if ($action->id == 'updateuserdata') {
$this->enableCsrfValidation = false;
}
return parent::beforeAction($action);
}
and uncomment csrf parameters in ajax.
And 'error' return status 302(jqXHR.status).
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Answer 1

I find problem, it's stupid problem:
url: '/mag/updateuserdata/',
i have in 'urlManager':
'suffix' => '/',
i think this added for all, but not.....

Answer 2

Cause you commented
//csrfParam: csrfToken
from your ajax js file you have 400 http status code in your ajax.
So you can solve it in two way:
one: disable csrf validation by adding
$this->enableCsrfValidation = false;
in your actionUpdateuserdata method.
two: add csrf token and csrf param to your ajax.
print this code in your js, where you commented it.
Yii::$app->request->csrfParam . ':' . Yii::$app->request->csrfToken
then your request sent successfully and if you have other error you must check your code.