Question

I have a notifications model for notifications

// MODEL
NotificationModel = App.BB.Model.extend({
    defaults : {}
});


// COLLECTION
NotificationCollection = App.BB.Collection.extend({
    model: NotificationModel,
    url: '/notifications',

    initialize : function() {
        var me = this;
        me.fetch();
    }

});

The collection is fetching from the server correctly and has the following fields (id, read) where read is true or false.

How can I get the total number count of items that are read == false? … Unread item count?

Thanks

Answer 1

A structured solution would be to create these methods in your collection:

read: function() {
    return this.filter(function(n) { return n.get('read'); });
},

unread: function() {
    return this.filter(function(n) { return !(n.get('read')); });
}

If you need the count, you can just add .length to the end of the method.