Sequelize associated data many-many

sequelize-include.js

// Simple example where you have a many-many relationship with Categories and Posts
// in sequelizejs and want to send the associated data as part of the response

Category.findAll({include: ['posts'] })
        .success(function(categories) {
	
            var results = categories.map(function(category) {
                var temp = mapAttributes(category);
                var p_results = category.posts.map(function(post){
                    var t = mapAttributes(post);
                    return t;
                });
                temp.posts = p_results;
                return temp;
            });
            // this is for an expressjs app to send the results as json
            response.json(results);
});

function mapAttributes(instance) {
	        var obj = new Object(),
	            ctx = instance;
	        ctx.attributes.forEach(function(attr) {
                //console.log(attr);
	            obj[attr] = ctx[attr];
	        });

	        return obj;
};