Unidom Shopping 购物领域模型引擎

Unidom (UNIfied Domain Object Model) is a series of domain model engines. The Shopping domain model engine includes Shopping Cart and Shopping Item models. Unidom (统一领域对象模型)是一系列的领域模型引擎。购物领域模型引擎包括购物车和购物项的模型。

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Usage in Gemfile

gem 'unidom-shopping'

Run the Database Migration

rake db:migrate

The migration versions start with 200205.

Call the Model

# Create Shopping Cart
lady = Party.create name: 'Ann'
shop = Shop.create  name: 'WalMart'
shopping_cart = Unidom::Shopping::ShoppingCart.create shopper: lady, shop: shop, opened_at: Time.now

# Add Products into Shopping Cart
fish = Product.create name: 'Fish'
ball = Prdduct.create name: 'Ball'
shopping_cart.items.create! shopper: lady, shopped: fish, unit_price: 39.96, quantity: 2, opened_at: Time.now
shopping_cart.items.create! shopper: lady, shopped: ball, unit_price: 19.99, quantity: 1, opened_at: Time.now
# or
shopping_cart.add! fish, unit_price: 39.96, quantity: 2, at: Time.now
shopping_cart.add! ball, unit_price: 19.99

# Find the Shopping Cart
shopping_cart = Unidom::Shopping::ShoppingCart.shopped_by(lady).shop_is(shop).valid_at.alive.first
shopping_cart.items.valid_at.alive # fish & ball