GRID - how to POST variable to PHP file

[Przemek]

Hello,

I'm new to Kendo UI framework but i have some experience with jQuery / AJAX.

I have problem with submiting value from my JS script to php file (simple AJAX works fine).

Here are my both php and js code.

var userList = new kendo.data.DataSource({

                transport: {

                    read: {

                        url: "php/usersModel.php",

                        dataType: "json"},

                        data: {operationCode:"showUsers"},

                        type: "post"

                     

                            

                },

                pageSize:10

                 

                 

            });

Without posting data it works fine (I tried with one-funciton-only php file). But in php file i have Switch function, every time my usersModel.php is requested i POST operationCode. When operationCode =="showUsers", showUsers function should be called, when I POST "showLogs" showLogs funciton in PHP file should be called.

In Chrome Console im getting this error: Uncaught TypeError: Cannot read property 'slice' of null.
There is my php code:

$operationCode = $_POST['operationCode'];

$conn= new MySQLI($host,$user,$DBpassword,$baza);

 

if (!empty($operationCode))

{

    Switch($operationCode)

        {

        case "deleteUser" :

            if (!empty($id))

                    {

                    deleteUser($id,$conn,$baza);

                    }

            break;

             

        case "showUsers" :

            showUsers($conn,$baza);

            break;  

        case "addUser" :

            addUser($baza,$conn,$serializedData,$operationCode);

            break;

        case "editUser":

            editUser($conn,$baza,$serializedData,$operationCode);

            break;

        case "showLogs":

            showLogs($conn);

            break;

        }

}

 

function showUsers($conn,$baza)

{

     

    $queryString="select id,username,email,telefon,imie,nazwisko,userlevel from ".$baza.".users t1 left join user_dane t2 on t1.id=t2.userid where t1.userlevel<>9 order by t1.id";

    $results=mysqli_query($conn,$queryString);

 

        $usersResult = array();  

        while ($row=mysqli_fetch_assoc($results))

        {

             

             

            array_push($usersResult,

                       array('id'=>$row['id'],

                             'username'=>$row['username'],

                             'email'=>$row['email'],

                             'telefon'=>$row['telefon'],

                             'userlevel'=>$row['userlevel'],

                             'imie'=>$row['imie'],

                             'nazwisko'=>$row['nazwisko']

                              

                             )

                        

                        

                       );

                      

        }

        echo json_encode($usersResult);

         

}

Of course db,host and other variables are defined properly.

I hope someone here is able to help me. And sorry for my !perfect English ;)

Best regards.

[Przemek]

I solved my problem by using GET method.

var userList = new kendo.data.DataSource({

               transport: {

                   read: {

                       data:{operationCode:"showUsers"},

                       url: "php/usersModel.php",

                       dataType: "json"},

                        

                       type: "get",

                       

                           

               },

               pageSize:10

                

                

           });

Could anyone answer me, why POST method does not work ?

Best Regards

[Hemant]

@Przemek,
can u share your add ,delete and update code with kendo grid and php.
I am only able to do read the reacords,rest are not working for me.please share rest.
thanks