CODEWITHSUNDEEP
jqueryjsonajaxcakephpcakephp-3.0
coder
coder

Reputation: 156

Ajax and Json in cakephp 3.x

struggling hard to get response from controller on changing value of drop down but getting internal server error 

$( document ).ready(function() {
   //alert( "ready!" );
    $('#devices-types-id').on('change', function() {
        alert( this.value ); 

         $.ajax({
                type:"POST",
                url: "<?php echo Router::url(array('controller'=>'FeaturesLists','action'=>'ajax_get_parent', '_ext' => 'json'));?>",
                dataType: 'text',
                async:false,
                success: function(data){
                    alert(data);
                },
                error: function (data) {
                    alert(data);
                }
            });

    });

but getting error with path first

POST http://localhost/compare_devices/features-lists/%3C?php%20echo%20Router::ur…ction%27=%3E%27ajax_get_parent%27,%20%27_ext%27%20=%3E%20%27json%27));?%3E 404 (Not Found)

if i write path in ajax call like this url: "/ajax_get_parent" then it does not give path error but "Internal server error" 

POST http://localhost/compare_devices/features-lists/ajax_get_parent 500 (Internal Server Error)

Controller code 

public function initialize()
{
    parent::initialize();
    $this->loadComponent('RequestHandler');
     $this->Auth->allow(['ajaxGetParent']);
}
public function ajaxGetParent() {
    $this->layout = false;
     $this->set('text', 'SUCCESS');
    $this->set('_serialize', ['text']);
}

In routes.php i put this line 

Router::extensions('json', 'xml');

i'm trying to get result in json but unable. Can you just guide me how i can do this. Many questions are already posted with same topic on 'SO' but most of them are for Cakephp 2.x and i tried some different solutions(help from SO and google) but could n't solve it. can you guide me how i can get response in json and resolve path problem.

Upvotes: 0

Views: 3487

Answers (3)

Willem S.
Willem S.

Reputation: 31

Try making extensions an array:

Router::extensions(['json', 'xml']);

Here's an ajax call that works for me:

// ajax jquery testing
function doAjaxTest() {
    $.ajax({
        async:false,
        url: '/requests/get-order-info/123123/2121.json',
        success: function(data){
            alert(data);
        },
        error: function (data) {
            alert(data);
        }
    });
}

controller function is:

$response['result'] = "success";
$response['has_info'] = false;

$this->set(compact('response'));
$this->set('_serialize', ['response']);

You could also try to access the required URL in the browser directly. Also check the logs for the exact server error. Use dashes instead of underscores in URL.

Upvotes: 1

Salines
Salines

Reputation: 5767

If is your jQuery code on same page Change action name:

url: "<?php echo Router::url(
  array(
    'controller'=>'FeaturesLists',
    'action'=>'ajaxGetParent',  // <--------
    '_ext' => 'json'
  ));?>",

if is your jQuery code in external .js file:

url: $('#devices-types-id').data('ajax-url);

and in your view add:

$this->Form->input('device_type_id',
  ['data-ajax-url' => $this->Url->build([
    'controller'=>'FeaturesLists',
    'action'=>'ajaxGetParent', 
    '_ext' => 'json'])
]);

In Router:

Router::extensions(['json']);

Controller method

public function ajaxGetParent() {
     //remove or comment this line, cakephp by default use ajax.ctp layout.
     #$this->layout = false;

     $this->set('text', 'SUCCESS');
    $this->set('_serialize', ['text']);
}

if i write path in ajax call like this url: "/ajax_get_parent" then it does not give path error but "Internal server error"

Try:

POST http://localhost/compare_devices/features-lists/ajax-get-parent.json

Upvotes: 1

Yosi Azwan
Yosi Azwan

Reputation: 497

set '_full' paramater to true.

url: "<?php echo Router::url(
        array(
           'controller'=>'FeaturesLists',
           'action'=>'ajax_get_parent',
           '_ext' => 'json',
           '_full' => true //for full url path
     ));?>",

Upvotes: 0

Related Questions