Re: Django session and Dojo dnd.

Hello Hendrik,

Thank you for your help! I can get the 'ok' in the alert with your code. However, how do I show the response in the alert? For some reason I am unable to pass the message back from the view; I keep getting an empty alert(response).

My view looks like:
 
   def new_session(request):
      if not request.is_ajax() or not request.method=='POST':
          return HttpResponseNotAllowed(['POST'])
   
      else:
          request.session['key'] = json.loads(request.POST.get('details', '[]'))
          return HttpResponse(request.session['key'])

I've also tried "return HttpResponse('ok')", but the 'ok' still didn't get passed to the load function. What do I do wrong? Any hints would be much appreciated!

    voss




On Saturday, June 2, 2012 8:46:38 AM UTC-5, henzk wrote:

Hi,

i haven't tested the code and never used dojo before, but sth. like
this should work:

var source1 = new dojo.dnd.Source("itemListNode");
var source2 = new dojo.dnd.Target("selectedListNode");
dojo.connect( source1, "onDndDrop",
    function(source, nodes, copy, target){
        //gather items and details
        var details = [];
        for( i=0; i < nodes.length; i++){
            var item = this.getItem(nodes[i].id);
            details.push(item.data);
        }
        //send details to server via AJAX POST request
        dojo.xhrPost({
            url: "/save_details/",
            content: {details: JSON.stringify(details)},
            // The success handler
            load: function(response) {
                 alert('ok');
            },
            // The error handler
            error: function() {
                 alert("error");
            }
        });
});

Explanation:

- changed 'item' to 'var item' ... without the 'var' item will be
global, which is probably not what you want.
- to get around making multiple requests to the server(one for each
dropped node), put the detail of each node in the details array.
- then json-encode and send this array to your django view (assumed to
be at '/save_details/')
- in the view, access the list as
json.loads(request.POST.get('details', '[]')) and place it into
request.session

As mentioned, the code is completely untested.

Good luck!

Yours,

Hendrik Speidel

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