yii2 render after post-request

Question

I have a view with a gridview with checkboxcolumn and a google-map (2amigos). The user selects the machines to display in the map by selecting the corresponding items in the gridview. A html-button submitts the selected keys to the controller. Following the controler code (dataProvider gets updated by post-request):

//some code before render   
$dataProvider = new ActiveDataProvider(['query'=>$query, 'pagination'=>false]);
return $this->render('locating', [
    'model' => $model,
    'searchModel' => $searchModel,
    'dataProvider1' => $dataProvider1,
    'dataProvider' => $dataProvider,
    ]);
}

And this is the js-script for the html-button:

$('#showButton').click(function(){
    var keys = $('#w0').yiiGridView('getSelectedRows');
    $.post("http://localhost:8080/eddb1/frontend/web/index.php?r=tracking/locating",
    {'keylist': keys},
    function(data){
        console.log(data);
    });
});

The problem is, that with the post request the result of php-render command gets writen as a html-string to the post-response but the view doesn't get re-rendered. If I do the same with an activeForm instead of a gridview (to select the machines) and a submit-button the page gets re-rendered as it should (but this way doesn't work for me because I need the gridview with filter and sorting). What can I do that the map (or the view) gets re-rendered with the post-request?

Don't understand why...but I will post the whole controller-code — Chris vD, Jul 07 '15 at 16:21
if I understand correctly you're trying to use a gridview and an active form in the same view. What kind of class gridview you're using? the normal class of Yii2 gridview? — ScaisEdge, Jul 07 '15 at 19:07
no, you understood it wrong: I need to use a gridview instead of a activeform...with activeform and multiselect-field everything is working fine but not if I'm using gridview with a normal parameter-post request as shown in the code above. — Chris vD, Jul 07 '15 at 19:33
I'm using kartik-grid by the way...If you red my question the the parameters get postet correctly to the action. Also the new dataprovider gets calculated correctly (after post). The problem is the re-render of the map with the new dataprovider-data. — Chris vD, Jul 07 '15 at 19:35

score 1 · Answer 1 · answered Jul 09 '15 at 06:35

1

Try to use renderAjax method to render your view when it is requested via ajax. I assume that you use actionLocating to render your view for page get request and for ajax. So before you call render in your controller, check if this is ajax request or not:

$renderMethod = Yii::$app->request->isAjax ? 'renderAjax' : 'render';

return $this->$renderMethod('locating', $viewParams);

answered Jul 09 '15 at 06:35

Tony

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Hi Tony, thanks for answering. Please excuse my late response...I was travelling. – Chris vD Jul 16 '15 at 01:00
I tried renderAjax before, also tried your code...same result: dataProvider gets created correctly but still no render – Chris vD Jul 16 '15 at 01:17
maybee the error is here: `$dataProvider1 = $searchModel->search(Yii::$app->request->queryParams);` ...gonna check it out. – Chris vD Jul 16 '15 at 14:44
how your js code looks like ? you post it exactly as it is in to your question ? – Tony Jul 17 '15 at 05:58
yes, it's the same code, I also tried it with `$.ajax` but same result – Chris vD Jul 17 '15 at 21:22
If I do `document.write(data)` the map doesn't get rendered because of the problem with asynchronous loading: see [Google Maps API](https://developers.google.com/maps/documentation/javascript/examples/map-simple-async?hl=es) and [Stackoverflow](http://stackoverflow.com/questions/13003644/async-loading-javascript-with-document-write) – Chris vD Jul 17 '15 at 21:29

score 0 · Answer 2 · answered Jul 07 '15 at 16:22

public function actionLocating()
{
    $searchModel = new ViewMachinesSearch();
    $dataProvider1 = $searchModel->search(Yii::$app->request->queryParams);
    $dataProvider1->pagination = false;
    $model = new TrackingForm();

    if (Yii::$app->request->post()){
        $model->machine_select = Yii::$app->request->post('keylist');
        $machines = $model->machine_select;
    }else{
        $machines = $model->getMachines();
    }

    if(!in_array(Yii::$app->user->identity->company_id, Yii::$app->CompaniesByUser->getCompaniesByUser(21))){
        $query = New Query;
        $query  ->select(['licenceplate', 'identifier', 'timestamp', 'lat', 'lng'])
                ->from('gps_live')
                ->where(['machine_id' => $machines])
                ->orderBy(['timestamp' => SORT_DESC]);
    }else{
        $subquery = New Query;
        $subquery   ->select(['licenceplate', 'identifier', 'timestamp', 'lat', 'lng'])
                    ->from('btc_m1_v1_1')
                    ->join('INNER JOIN', 'machine', 'machine.id_machine = machine_id')
                    ->where(['machine_id' => $machines])
                    ->andWhere('lat <> 0')
                    ->andWhere('lng <> 0')
                    ->orderBy(['timestamp' => SORT_DESC]);
        $query = New Query;
        $query  ->from(['sub' => $subquery])
                ->groupBy(['sub.licenceplate'])
                ->all();
    }

    $dataProvider = new ActiveDataProvider(['query'=>$query, 'pagination'=>false]);
    return $this->render('locating', [
        'model' => $model,
        'searchModel' => $searchModel,
        'dataProvider1' => $dataProvider1,
        'dataProvider' => $dataProvider,
        ]);
}

score 0 · Answer 3 · answered Nov 13 '17 at 08:08

you can create some function on your base controller to make sure it was rendered as an ajax or not, the code seems like this.

protected function renderIsAjax($view, $params = [])
{
    if (Yii::$app->request->isAjax) {
        return $this->renderAjax($view, $params);
    } else {
        return $this->render($view, $params);
}

then in your controller just call that method

return $this->renderIsAjax('locating', [
    'model' => $model,
    'searchModel' => $searchModel,
    'dataProvider1' => $dataProvider1,
    'dataProvider' => $dataProvider,
]);

yii2 render after post-request

3 Answers3

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