BB: Collection View

http://codebeerstartups.com/2012/12/9-collection-views-in-backbone-js-learning-backbone-js/

by kyllle

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-alpha1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.2/backbone-min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/3.0.3/normalize.css">
<div class="js-ctn"></div>

<script type="text/html" class="js-template">
    <h1>Hey, <%= name %></h1>
    <p><%= playerPoints %></p>
        
    <ul>
        <% _.each(teams, function(team) { %>
            <li><%= team.name %> (<%= team.location %>) - <small><%= team.manager %></small></li>
        <% }) %>
    </ul>
</script>

CSS

@import url(http://fonts.googleapis.com/css?family=Roboto:300,400,500);

body {
    font-family: Roboto;
    color: #191919;
}

a {
    color: #191919;
}

JavaScript

console.clear();

// Dummy Data
var data = [
    {
        "id": 1,
        "name": "John Doe",
        "teams": [
            {
                "id": 12,
                "name": "Manchester United",
                "manager": "Louis van Gaal",
                "location": "Manchester"
            }, {
                "id": 18,
                "name": "Everton",
                "manager": "Roberto Martinez",
                "location": "Liverpool"
            }
        ],
        "playerPoints": 14789,
    	"teamsAvailable": 2,
        "teamsDeleted": 8
	}, {
        "id": 2,
        "name": "Joe Bloggs",
        "teams": [
            {
                "id": 4,
                "name": "Arsenal",
                "manager": "Arsene Wenger",
                "location": "London"
            }
        ],
        "playerPoints": 4899,
    	"teamsAvailable": 3,
        "teamsDeleted": 2
    }
]


// Classes
var PersonModel = Backbone.Model.extend();

var PersonCollection = Backbone.Collection.extend({
    model: PersonModel
});

var PersonCollectionView = Backbone.View.extend({
    
    tagName: 'ul',
     
    render: function() {
		this.collection.each(this.addPerson, this);
        
        return this;
    },
    
    addPerson: function(person) {
                
        var personView = new PersonView({
            model: person
        });
     	
        this.$el.prepend( personView.render().el )
    }
});

var PersonView = Backbone.View.extend({
	
    tagName: 'li',
    
    template: _.template( $('.js-template').html() ),
    
    render: function() {
        this.$el.html( this.template( this.model.toJSON() ) ); //or this.model.attributes if toJSON() overrid
        
        return this;
    }
});

// Setup
var personCollection = new PersonCollection(data, {parse:true});
var personCollectionView = new PersonCollectionView({
	collection: personCollection
});

// Add to DOM
$('.js-ctn').html(personCollectionView.render().el);