Backbone.Model in localStorage

gistfile1.coffee

# Storing a Backbone.Model in localStorage
# ========================================
# 
# You can then use localStorage as a collection. For an usage example, see
# https://github.com/juliocesar/factory/blob/master/coffeescripts/factory.coffee#L149
# This largely Just Worked™ for my needs. YMMV!

    class MyModel extends Backbone.Model

      sync: (method, model, rest...) ->
        switch method
          when 'create', 'update'
            localStorage.setItem @id, JSON.stringify model
          when 'delete'
            localStorage.removeItem @id
          when 'read'
            attributes = localStorage.getItem @id
            model.attributes = JSON.parse attributes if attributes?
            model
        @