deploy to heroku

Gemfile

@@ -1,10 +1,14 @@
 source 'https://rubygems.org'
 
 
+
+gem "bootstrap-sass"
+
+gem "devise"
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '4.2.2'
 # Use sqlite3 as the database for Active Record
-gem 'sqlite3'
+gem 'sqlite3',group: :development
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets
@@ -13,7 +17,11 @@ gem 'uglifier', '>= 1.3.0'
 gem 'coffee-rails', '~> 4.1.0'
 # See https://github.com/rails/execjs#readme for more supported runtimes
 # gem 'therubyracer', platforms: :ruby
+group :production do
+  gem "pg"
+  gem "rails_12factor"
 
+end
 # Use jquery as the JavaScript library
 gem 'jquery-rails'
 # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
@@ -42,4 +50,3 @@ group :development, :test do
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
   gem 'spring'
 end
-

Gemfile.lock

@@ -37,8 +37,14 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.0)
+    autoprefixer-rails (6.3.3.1)
+      execjs
+    bcrypt (3.1.10)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
+    bootstrap-sass (3.3.6)
+      autoprefixer-rails (>= 5.2.1)
+      sass (>= 3.3.4)
     builder (3.2.2)
     byebug (5.0.0)
       columnize (= 0.9.0)
@@ -51,6 +57,13 @@ GEM
     coffee-script-source (1.9.1.1)
     columnize (0.9.0)
     debug_inspector (0.0.2)
+    devise (3.4.1)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 3.2.6, < 5)
+      responders
+      thread_safe (~> 0.1)
+      warden (~> 1.2.3)
     erubis (2.7.0)
     execjs (2.5.2)
     globalid (0.3.5)
@@ -74,6 +87,8 @@ GEM
     multi_json (1.11.2)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
+    orm_adapter (0.5.0)
+    pg (0.18.4)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -96,6 +111,11 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.2)
       loofah (~> 2.0)
+    rails_12factor (0.0.3)
+      rails_serve_static_assets
+      rails_stdout_logging
+    rails_serve_static_assets (0.0.5)
+    rails_stdout_logging (0.0.4)
     railties (4.2.2)
       actionpack (= 4.2.2)
       activesupport (= 4.2.2)
@@ -104,6 +124,8 @@ GEM
     rake (10.4.2)
     rdoc (4.2.0)
       json (~> 1.4)
+    responders (2.1.1)
+      railties (>= 4.2.0, < 5.1)
     sass (3.4.15)
     sass-rails (5.0.3)
       railties (>= 4.0.0, < 5.0)
@@ -132,6 +154,8 @@ GEM
     uglifier (2.7.1)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
+    warden (1.2.6)
+      rack (>= 1.0)
     web-console (2.1.3)
       activemodel (>= 4.0)
       binding_of_caller (>= 0.7.2)
@@ -142,15 +166,22 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  bootstrap-sass
   byebug
   coffee-rails (~> 4.1.0)
+  devise
   jbuilder (~> 2.0)
   jquery-rails
+  pg
   rails (= 4.2.2)
+  rails_12factor
   sass-rails (~> 5.0)
   sdoc (~> 0.4.0)
   spring
   sqlite3
   turbolinks
   uglifier (>= 1.3.0)
   web-console (~> 2.0)
+
+BUNDLED WITH
+   1.11.2

app/assets/javascripts/admin/products.coffee

@@ -0,0 +1,3 @@
+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/admin/products.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the admin::products controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/application.css → app/assets/stylesheets/application.css.scss

@@ -13,3 +13,5 @@
  *= require_tree .
  *= require_self
  */
+ @import "bootstrap-sprockets";
+ @import "bootstrap";

app/controllers/admin/products_controller.rb

@@ -0,0 +1,28 @@
+class Admin::ProductsController < ApplicationController
+
+  before_action :authenticate_user!
+  before_action :admin_required
+
+  def index
+    @products = Product.all
+  end
+  def new
+    @product = Product.new
+  end
+
+  def create
+    @product = Product.new(product_params)
+
+    if @product.save
+      redirect_to admin_products_path
+    else
+      render :new
+    end
+  end
+
+  private
+
+  def product_params
+    params.require(:product).permit(:title, :description, :quantity, :price)
+  end
+end

app/controllers/application_controller.rb

@@ -2,4 +2,10 @@ class ApplicationController < ActionController::Base
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
+
+  def admin_required
+    if !current_user.admin?
+      redirect_to "/"
+    end
+  end
 end

app/helpers/admin/products_helper.rb

@@ -0,0 +1,2 @@
+module Admin::ProductsHelper
+end

app/models/product.rb

@@ -0,0 +1,2 @@
+class Product < ActiveRecord::Base
+end

app/models/user.rb

@@ -0,0 +1,9 @@
+class User < ActiveRecord::Base
+  # Include default devise modules. Others available are:
+  # :confirmable, :lockable, :timeoutable and :omniauthable
+  devise :database_authenticatable, :registerable,
+         :recoverable, :rememberable, :trackable, :validatable
+  def admin?
+    is_admin
+  end
+end

app/views/admin/products/index.html.erb

@@ -0,0 +1,6 @@
+<ul>
+  <% @products.each do |product| %>
+
+    <li> <%= link_to(product.title, admin_product_path(product)) %> </li>
+  <% end %>
+</ul

app/views/admin/products/new.html.erb

@@ -0,0 +1,25 @@
+<%= form_for [:admin, @product] do |f| %>
+
+  <div class="group">
+    <%= f.label("標題") %>
+    <%= f.text_field :title %>
+  </div>
+
+  <div class="group">
+    <%= f.label("敘述") %>
+    <%= f.text_area :description %>
+  </div>
+
+  <div class="group">
+    <%= f.label("數量") %>
+    <%= f.text_field :quantity %>
+  </div>
+
+  <div class="group">
+    <%= f.label("價錢") %>
+    <%= f.text_field :price %>
+  </div>
+
+  <%= f.submit "Submit", data: { disable_with: "Submitting..." } %>
+
+<% end %>

app/views/layouts/application.html.erb

@@ -7,6 +7,11 @@
   <%= csrf_meta_tags %>
 </head>
 <body>
+  <% if !current_user %>
+      <%= link_to("登入", new_user_session_path) %>
+    <% else %>
+      <%= link_to("登出", destroy_user_session_path, method: :delete) %>
+    <% end %>
 
 <%= yield %>