Solution Backbone Model

solution.js

Solution = Backbone.Model.extend ({
	fetchAll: function(options) {
		var solution = this;
		var error = false;
		var errorHandler = function() {
			error = true;
		}

		$.when(solution.comments.fetch({ error: errorHandler }),
			solution.likes.fetch({ error: errorHandler }),
			solution.team.fetch({ error: errorHandler }),
			solution.assets.fetch({ error: errorHandler })).done(function(a, b, c, d) {
				if(options.success && !error)
					options.success();
				else if(options.error)
					options.error();
			});
	},
	initialize: function() {
		this.comments = new Comments();
		this.comments.url = this.url() + '/solution_comments';

		this.likes = new Likes();
		this.likes.url = this.url() + '/solution_likes';

		this.team = new Team();
		this.team.url = this.url() + '/team_memberships';

		this.assets = new Assets();
		this.assets.url = this.url() + '/solution_assets';
	},
	like: function(callback) {
		var f = function() {
			like = this.likes.get(this.get('like_id'));
			solution = this;
			if(like) {
				like.url = this.likes.url + '/' + like.get('id');
				like.destroy({
					success: function(model, response) {
						this.like_id = null;
						solution.likes.remove(model);
						if(callback)
							callback();
					}
				});				
			} else {
				like = new Like();
				like.url = this.likes.url;
				like.save(null, {
					success: function(model, response) {
						this.like_id = model.id;
						solution.likes.add(model);
						if(callback)
							callback();
					}
				});
			}
		};

		if(!this.likes) {
			this.likes.fetch.call({
				success: function() {
					f.call(this);
				}
			}, this);
		} else {
			f.call(this);
		}
	}
});

Solutions = Pagable.extend({
	model: Solution
});