Search code examples
jquerymarionettejquery-select2backbone-stickit

Stickit dynamic binding for newly created select element


In my project I am using Marionette with stickit for two way data binding.

In there I need to clone div element which has select and textbox.

var $template = $('#template-clone');
var $clone = $template.clone();
$clone.show();

var observeSelectID = $clone.find('select').attr('id');
var selectID = '#'+observeSelectID; 

after that I am trying to bind newly created element using stickit.

this.addBinding(null, {
    selectID : {
        observe : observeSelectID,
        initialize : function($el) {
            $(selectID).select2({
            });
        },
    },
    selectOptions : {
        collection : function(data) {
            var option = "{Label value pair JSON String}"   
            return {
                'opt_labels' : ['List'],
                'List' : option
            };
        }
    }
}); 

But any changes in the select box won't trigger model changes.


Solution

  • Got the solution: Add the handler for select2 stickit.

    Backbone.Stickit.addHandler({
            selector : 'select.select2',
            initialize : function($el, model, opt) {
                var e = 'change:' + opt.observe,
                    self = this;
                $el.select2();
                var up = function(m, v, o) {
                    if (!o.stickitChange)
                        $el.trigger("change");
                };
                this.listenTo(model, e, up);
                this.listenTo(model, 'stickit:unstuck', function() {
                    self.stopListening(model, e, up);
                });
            }
        });
    

    and when new element is created add its bindings

                var textareaObserve = $('#textarea').attr('id');
                var textareaID = '#' + textareaObserve;
    
                self.bindings[selectedID] = observeSelectID;
                self.addBinding(self.model, selectedID, observeSelectID);
    

    will make select2 bindings.