Question

I have followed numerous screen casts as well as trawled the backbone docs extensively and I cannot figure out why my view events are not being fired. My (short) code for testing is as follows:

<script type="text/javascript" src="js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="js/underscore.min.js"></script>
<script type="text/javascript" src="js/backbone.min.js"></script>

<script type="text/javascript">
    
    var App = (function($){
        
        var NavigationItemView = Backbone.View.extend({
            el: '#navigation',
            initialize: function(params){
                this.label = params.label;
                this.appendTo = params.appendTo;
            },
            events: {
                "click #add" : "test"
            },
            test: function(){
                $(this.el).html("<li>Testing...</li>");
            },
            render: function(){
                $(this.el).html("<li><a href=\"#\">"+this.label+"</a></li>");
            }
        })
        
        var self = {};
        self.init = function(){
            new NavigationItemView({ label: 'Test Nav Label' });
        }
        
        return self;
    });
    
    $(document).ready(function(){
         App(jQuery).init();
    })
    
</script>

If I change the init method code from this:

new NavigationItemView({ label: 'Test Nav Label' })

To this:

new NavigationItemView({ label: 'Test Nav Label' }).render()

The render method is called perfectly, indicating there is no issues with the set up of the view. I can replace render() with test() and likewise it works.

However, the event of clicking on the link with ID #add does not fire the test even, and surely it should? To clarify, I do have a link with id ‘add’ in the DOM, I have checked and checked again.

If I add event hooks using jQuery and fire off certain methods of the view manually, that works. It’s backbones own event hooks that are not working for me.

I have looked at the related posts, and most of the suggestions were use the el property, which I have. #navigation is an empty <ul> in my case. I have changed it to a div but with no change in behaviour.

All help much appreciated.

Answer 1

Is your #add element a child of your view element (#navigation)?
Events are fired only on children elements of you view “el”. For instance, this will not work:

<div id="navigation">
    ...
</div>

<div id="add">
    ...
</div>

While this will:

<div id="navigation">
    ...
    <div id="add">
        ...
    </div>
    ...
 </div>