How to integrate Ajax with Symfony2 [closed]

Question

I'm looking form simple tutorial/example about ajax in symfony2, for beginner?

I have these examples:

• city.php: http://pastebin.com/Qm8LS5kh

• ajax_req.js: http://pastebin.com/UqJMad24

• index.html: http://pastebin.com/H1err4Yh

How can these be put into a Symfony2 app?

Answer 1

It is easy. I will illustrate how to do an AJAX call in Symfony2 through 3 steps. For the following example, assume to use the jQuery library.

• Define the route for the action that has to handle your AJAX call. E.g.

  AcmeHomeBundle_ajax_update_mydata:
    pattern:  /update/data/from/ajax/call
    defaults: { _controller: AcmeHomeBundle:MyAjax:updateData }
  

• Define the action in the MyAjax controller from Home bundle. E.g.

  public function updateDataAction(){
    $request = $this->container->get('request');        
    $data1 = $request->query->get('data1');
    $data2 = $request->query->get('data2');
    ...
    //handle data
    ...
    //prepare the response, e.g.
    $response = array("code" => 100, "success" => true);
    //you can return result as JSON
    return new Response(json_encode($response)); 
  }      
  

• Prepare your AJAX call in your Twig template, e.g.:

  function aButtonPressed(){
      $.post('{{path('AcmeHomeBundle_ajax_update_mydata')}}',               
                  {data1: 'mydata1', data2:'mydata2'}, 
              function(response){
                      if(response.code == 100 && response.success){//dummy check
                        //do something
                      }
  
      }, "json");    
  }
  
  $(document).ready(function() {     
    $('button').on('click', function(){aButtonPressed();});
  });
  

  You can change the example by using other AJAX calls.