add aasm_state to order

Gemfile

@@ -37,6 +37,7 @@ gem 'font-awesome-rails'
 gem 'carrierwave'
 gem 'mini_magick'
 gem 'letter_opener', group: :development
+gem 'aasm'
 
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console

Gemfile.lock

@@ -1,6 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    aasm (4.12.0)
+      concurrent-ruby (~> 1.0)
     actioncable (5.0.0)
       actionpack (= 5.0.0)
       nio4r (~> 1.2)
@@ -189,6 +191,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  aasm
   bootstrap-sass
   byebug
   carrierwave

app/controllers/orders_controller.rb

@@ -16,7 +16,7 @@ def create
         product_list.quantity = cart_item.quantity
         product_list.save
       end
-      
+
       current_cart.clean!
       OrderMailer.notify_order_placed(@order).deliver!
 
@@ -35,15 +35,16 @@ def show
   def pay_with_alipay
     @order = Order.find_by_token(params[:id])
     @order.set_payment_with!("alipay")
-    @order.pay!
+    @order.make_payment!
+
 
     redirect_to order_path(@order.token), notice: "使用支付宝成功完成付款"
   end
 
   def pay_with_wechat
     @order = Order.find_by_token(params[:id])
     @order.set_payment_with!("wechat")
-    @order.pay!
+    @order.make_payment!
 
     redirect_to order_path(@order.token), notice: "使用微信成功完成付款"
   end

app/models/order.rb

@@ -20,4 +20,39 @@ def pay!
 
   belongs_to :user
   has_many :product_lists
+
+  include AASM
+
+  aasm do
+    state :order_placed, initial: true
+    state :paid
+    state :shipping
+    state :shipped
+    state :order_cancelled
+    state :good_returned
+
+    event :make_payment, after_commit: :pay! do
+       transitions from: :order_placed, to: :paid
+     end
+
+    event :ship do
+      transitions from: :paid,         to: :shipping
+    end
+
+    event :deliver do
+      transitions from: :shipping,     to: :shipped
+    end
+
+    event :return_good do
+      transitions from: :shipped,      to: :good_returned
+    end
+
+    event :cancel_order do
+      transitions from: [:order_placed, :paid], to: :order_cancelled
+    end
+  end
+
+
+
+
 end

db/migrate/20170517043732_add_aasm_state_to_order.rb

@@ -0,0 +1,6 @@
+class AddAasmStateToOrder < ActiveRecord::Migration[5.0]
+  def change
+    add_column :orders, :aasm_state, :string, default: "order_placed"
+    add_index  :orders, :aasm_state
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170517033724) do
+ActiveRecord::Schema.define(version: 20170517043732) do
 
   create_table "cart_items", force: :cascade do |t|
     t.integer  "cart_id"
@@ -32,11 +32,13 @@
     t.string   "billing_address"
     t.string   "shipping_name"
     t.string   "shipping_address"
-    t.datetime "created_at",                       null: false
-    t.datetime "updated_at",                       null: false
+    t.datetime "created_at",                                null: false
+    t.datetime "updated_at",                                null: false
     t.string   "token"
     t.boolean  "is_paid",          default: false
     t.string   "payment_method"
+    t.string   "aasm_state",       default: "order_placed"
+    t.index ["aasm_state"], name: "index_orders_on_aasm_state"
   end
 
   create_table "product_lists", force: :cascade do |t|