User can add to order

app/controllers/api/orders_controller.rb

@@ -0,0 +1,15 @@
+class Api::OrdersController < ApplicationController
+	def create
+		order = Order.create
+		order.order_items.create(product_id: params[:product_id])
+		render json: {message: 'The product has been added to your order', order_id: order.id }
+  end
+
+  def update
+    order = Order.find(params[:id])
+    product = Product.find(params[:product_id])
+    order.order_items.create(product: product)
+    render json: { message: 'The product has been added to your order', order_id: order.id }
+  end
+
+end

app/controllers/api/products_controller.rb

@@ -0,0 +1,6 @@
+class Api::ProductsController < ApplicationController
+    def index
+      product = Product.all
+      render json: { products: product }
+    end
+end

app/models/order.rb

@@ -0,0 +1,3 @@
+class Order < ApplicationRecord
+    has_many :order_items
+end

app/models/order_item.rb

@@ -0,0 +1,4 @@
+class OrderItem < ApplicationRecord
+  belongs_to :order
+  belongs_to :product
+end

app/models/product.rb

@@ -1,4 +1,3 @@
-require 'rails_helper'
 class Product < ApplicationRecord
-    validates_presence_of :name, :description, :price, :allergens
+    validates_presence_of :name, :description, :price
 end

app/models/user.rb

@@ -1,9 +1,6 @@
-# frozen_string_literal: true
 
 class User < ActiveRecord::Base
   extend Devise::Models
-  # Include default devise modules. Others available are:
-  # :confirmable, :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
   include DeviseTokenAuth::Concerns::User

config/routes.rb

@@ -1,8 +1,7 @@
 Rails.application.routes.draw do
-  mount_devise_token_auth_for 'User', at: 'api/v1/auth', skip: [:omniauth_callbacks]
+  mount_devise_token_auth_for 'User', at: 'api/auth', skip: [:omniauth_callbacks]
   namespace :api do
-    resources :products, only: [:index], constraints: { format: 'json' }
-    namespace :v1, defaults: { format: :json } do
-    end
+    resources :products, only: [:index]
+    resources :orders, only: [:create, :update]
   end
 end

db/migrate/20200308114522_create_items.rb

@@ -0,0 +1,11 @@
+class CreateItems < ActiveRecord::Migration[6.0]
+  def change
+    create_table :items do |t|
+      t.string :name
+      t.string :description
+      t.decimal :price
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20200308152106_create_orders.rb

@@ -0,0 +1,8 @@
+class CreateOrders < ActiveRecord::Migration[6.0]
+  def change
+    create_table :orders do |t|
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20200308152215_create_order_items.rb

@@ -0,0 +1,10 @@
+class CreateOrderItems < ActiveRecord::Migration[6.0]
+  def change
+    create_table :order_items do |t|
+      t.references :order, null: false, foreign_key: true
+      t.references :product, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,11 +10,33 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_03_05_152407) do
+ActiveRecord::Schema.define(version: 2020_03_08_152215) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "items", force: :cascade do |t|
+    t.string "name"
+    t.string "description"
+    t.decimal "price"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+  end
+
+  create_table "order_items", force: :cascade do |t|
+    t.bigint "order_id", null: false
+    t.bigint "product_id", null: false
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["order_id"], name: "index_order_items_on_order_id"
+    t.index ["product_id"], name: "index_order_items_on_product_id"
+  end
+
+  create_table "orders", force: :cascade do |t|
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+  end
+
   create_table "products", force: :cascade do |t|
     t.string "name"
     t.string "description"
@@ -51,4 +73,6 @@
     t.index ["uid", "provider"], name: "index_users_on_uid_and_provider", unique: true
   end
 
+  add_foreign_key "order_items", "orders"
+  add_foreign_key "order_items", "products"
 end

spec/controllers/api/orders_controller_spec.rb

@@ -0,0 +1,12 @@
+require 'rails_helper'
+
+RSpec.describe Api::OrdersController, type: :controller do
+
+  describe "GET #create" do
+    it "returns http success" do
+      get :create
+      expect(response).to have_http_status(:success)
+    end
+  end
+
+end

spec/factories/items.rb

@@ -0,0 +1,7 @@
+FactoryBot.define do
+  factory :item do
+    name { "MyString" }
+    description { "MyString" }
+    price { "9.99" }
+  end
+end

spec/factories/order_items.rb

@@ -0,0 +1,6 @@
+FactoryBot.define do
+  factory :order_item do
+    order { nil }
+    product { nil }
+  end
+end

spec/factories/orders.rb

@@ -0,0 +1,5 @@
+FactoryBot.define do
+  factory :order do
+
+  end
+end

spec/factories/products.rb

@@ -3,6 +3,5 @@
     name { "Noodles" }
     description { "Italian linguine" }
     price { 1.5 }
-    allergens { "gluten" }
   end
 end

spec/models/order_item_spec.rb

@@ -0,0 +1,6 @@
+require 'rails_helper'
+
+RSpec.describe OrderItem, type: :model do
+  it {is_expected.to belong_to :order}
+  it {is_expected.to belong_to :product}
+end

spec/models/order_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Order, type: :model do
+  it {is_expected.to have_many :order_items}
+end

spec/models/product_spec.rb

@@ -1,27 +1,22 @@
-require 'rails_helper'
+require "rails_helper"
 
 RSpec.describe Product, type: :model do
-
-  it 'should have valid Factory' do
-    expect(create(:product)).to be_valid
+  describe "Database table" do
+    it { is_expected.to have_db_column :id }
+    it { is_expected.to have_db_column :name }
+    it { is_expected.to have_db_column :description }
+    it { is_expected.to have_db_column :price }
   end
 
-  describe 'Database table' do
-  it { is_expected.to have_db_column :name} 
-  it { is_expected.to have_db_column :description} 
-  it { is_expected.to have_db_column :price} 
-  it { is_expected.to have_db_column :allergens} 
+  describe "Validations" do
+    it { is_expected.to validate_presence_of :name }
+    it { is_expected.to validate_presence_of :description }
+    it { is_expected.to validate_presence_of :price }
   end
 
-  describe 'GET product' do
-    let!(:products) do
-      3.times do
-        FactoryBot.create(:product)
-      end
-    end
-
-    it 'returns a collection of products' do
-      expect(products).to eq 3
+  describe "Factory" do
+    it "should have valid Factory" do
+      expect(create(:product)).to be_valid
     end
   end
 end

spec/requests/api/v1/registration_spec.rb

@@ -1,8 +1,8 @@
-RSpec.describe "POST /api/v1/auth", type: :request do
+RSpec.describe "POST /api/auth", type: :request do
     let(:headers) { { HTTP_ACCEPT: 'application/json' } }
     describe 'with valid credentials' do
       before do
-        post '/api/v1/auth',
+        post '/api/auth',
             params: {
               email: '[email protected]',
               password: 'password',
@@ -20,7 +20,7 @@
     context 'when a user submits' do
       describe 'a non-matching password confirmation' do
         before do
-          post '/api/v1/auth',
+          post '/api/auth',
               params: {
                 email: '[email protected]',
                 password: 'password',
@@ -37,7 +37,7 @@
       end
       describe 'an invalid email address' do
         before do
-          post '/api/v1/auth',
+          post '/api/auth',
               params: {
                 email: 'example@craft',
                 password: 'password',
@@ -55,7 +55,7 @@
       describe 'an already registered email' do
         let!(:registered_user) { create(:user, email: '[email protected]') }
         before do
-          post '/api/v1/auth',
+          post '/api/auth',
               params: {
                 email: '[email protected]',
                 password: 'password',

spec/requests/api/v1/session_spec.rb

@@ -1,4 +1,4 @@
-RSpec.describe 'POST /api/vi/auth/sign_in', type: :request do
+RSpec.describe 'POST /api/auth/sign_in', type: :request do
     let(:headers) { { HTTP_ACCEPT: 'application/json' } }
     let(:user) { create(:user) }
     let(:expected_response) do
@@ -11,7 +11,7 @@
     end
     describe 'with valid credentials' do
         before do
-            post '/api/v1/auth/sign_in',
+            post '/api/auth/sign_in',
             params: {
                 email: user.email,
                 password: user.password
@@ -30,7 +30,7 @@
 
     describe 'with invalid password' do
         before do 
-            post '/api/v1/auth/sign_in',
+            post '/api/auth/sign_in',
             params: {
                 email: user.email,
                 password: 'wrong_password'
@@ -49,7 +49,7 @@
 
     describe 'with invalid email' do
       before do
-        post '/api/v1/auth/sign_in',
+        post '/api/auth/sign_in',
         params: {
           email: '[email protected]',
           password: user.password

spec/requests/api/v1/user_can_create_new_order_spec.rb

@@ -0,0 +1,35 @@
+RSpec.describe Api::OrdersController, type: :request do
+    let!(:product_1) { create(:product, name: "Fish") }
+    let!(:product_2) { create(:product, name: "Meatball") }
+
+    before do
+        post "/api/orders", params: { product_id: product_1.id }
+        @order_id = JSON.parse(response.body)['order_id']
+    end
+
+    describe 'POST /api/orders' do
+        it 'responds with success message' do
+          expect(JSON.parse(response.body)['message']).to eq 'The product has been added to your order'
+        end
+
+        it 'responds with order id' do
+          order = Order.find(@order_id)
+          expect(JSON.parse(response.body)['order_id']).to eq order.id
+        end
+      end
+
+      describe 'PUT /api/orders/:id' do
+        before do
+          put "/api/orders/#{@order_id}", params: { product_id: product_2.id }
+          @order = Order.find(@order_id)
+        end
+
+        it 'adds another product to order if request is a PUT and param id of the order is present' do
+          expect(@order.order_items.count).to eq 2
+        end
+
+        it 'responds with order id' do
+          expect(JSON.parse(response.body)['order_id']).to eq @order.id
+        end
+      end
+    end

spec/requests/products_spec.rb

@@ -0,0 +1,17 @@
+RSpec.describe Api::ProductsController, type: :request do
+  let!(:products) { 3.times { create(:product) } }
+
+  describe "GET /product" do
+    before do
+      get "/api/products"
+    end
+
+    it "should return a 200 response" do
+      expect(response).to have_http_status 200
+    end
+
+    it "should return three products" do
+      expect(JSON.parse(response.body)["products"].count).to eq 3
+    end
+  end
+end