active_cart_mongoid

Mongoid storage bolt-on for the active_cart gem

A work-in-progress, any contribution very welcome!

Usage

Mixin the MongoidItem into your CartItem (or similar) class, e.g:

class CartItem
  include Mongoid::Document
  include ActiveCart::Items::MongoidItem

  # a cart item will always contain a product
  embeds_one :product
  embedded_in :ShoppingCart, :inverse_of => :items
  
  # you need to override the construtor to ensure the cart item's ID represents the product's ID. otherwise, the cart will always think you are adding a different product and will never increment quantity.
  def initialize(product)
    attrs = {
      :id => product.id,
      :product => product
    }
    super(attrs)
  end

  # this should return the price as it will be serialised in the basket collection, e.g. pence/cents
  def price
	product.price
  end
end

Extend the ActiveCart::StorageEngines::MongoidStorage class with a concrete Cart / Basket (or whatever you want to call it) class, e.g.:

class ShoppingCart < ActiveCart::StorageEngines::MongoidStorage
  # you must define the mongoid association to model the cart contents, e.g:
  embeds_many :items, :class_name => "Product"
  # optionally change which collection the carts are stored
  store_in :shopping_baskets
end

Then your cart items can be serialised to a basket

include ActiveCart
c = Cart.new(ShoppingCart.new)
i = CartItem.new(Product.first)
c.add_to_cart(i)

Contributing to active_cart_mongoid

Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
Fork the project
Start a feature/bugfix branch
Commit and push until you are happy with your contribution
Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.

marthawurm / active_cart_mongoid

active_cart_mongoid

Usage

Contributing to active_cart_mongoid

Copyright

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