rails new wiki
// add some gems
bundle install

git init
git status
git add -A
git commit -m"Initialize repository"
git mv README.rdoc README.md
git commit -am "Improve the README"

rails g model Article title:string content:text
rails g controller Articles
// 往articles_controller.rb添加index页面
// 往route.rb里添加resources :articles 和 root 'articles#index'
rake db:migrate

// 创建index.html.haml文件
// 往articles_controller.rb添加new create private(article_params)页面
// 创建 _form.html.haml new.html.haml create.html.haml 等views文件

git status
git add .
git commit -am"Add articles model, controller, views"

rails g simple_form:install --bootstrap
rails s
// 向articles_controller.rb添加private(find_article) 和 def(show) 和 before_action :find_article, only: [:show]
// 填充 show.html.haml 内容，添加路由链接：= link_to "Back", root_path
// 向 index.html.haml添加路由链接：= link_to "New Article", new_article_path

rake routes

git status
git add .
git commit -am"Installed simple_form and created article show pages"

// 给index.html.haml添加文章日期
// 给articles_controller.rb添加def(index)内容：@articles = Article.all.order("created_at DESC")
// 给index.html.haml添加@articles.each do |article|并且truncate及它的参数

git status
git add .
git commit -am"Loop articles on index"

rails g devise:install
// config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
// root to: "home#index"
<p class="notice"><%= notice %></p>
<p class="alert"><%= alert %></p>
// config.assets.initialize_on_precompile = false

rails g devise User
rake db:migrate

rails c
User.connection
User.count
User.first

git status
git add .
git commit -am"Add Devise and Generate User Model"

// 向modles/article.rb添加 belongs_to :user
// 向modles/user.rb添加 has_many :articles
rails g migration add_user_id_to_articles user_id:integer:index
rake db:migrate
// 更改 articles_controller.rb 中def new 和 def create 中的 Article.new 为 current_user.articles.build
rails c
@article = Article.last
// 在new.html 创建wiki数据
@article = Article.last
@article = Article.first
@article.user_id = 1
@article.save
@article = Article.find(2)
@article.save

git status
git add .
git commit -am"Add association between user and article"

// 向articles_controller.rb添加 before_action :authenticate_user!, except: [:index, :show]
// 向 index.html.haml 中 路由链接 添加 if 语句的条件判断：是否登录。

git status
git add .
git commit -am"Add user authentication"

rails g model Category name:string
rake db:migrate
rails g migration add_category_id_to_articles category_id:integer
rake db:migrate

// 向 models/article.rb 添加 ：belongs_to :category
// 向 models/category.rb 添加 ：has_many :articles

rails c
Category
Category.connection
Category
Category.create(name:"Art")
Category.create(name:"Technology")
Category.create(name:"Politics")
Category.count
@article = Article.last
// 向 _form.html.haml 添加 = f.collection_select :category_id, Category.all, :id, :name, { promt: "Choose a Category" }
// 向 articles_controller.rb 添加 def（article_params）参数 :category_id
// 在 new.html.haml 网页中 创建 数据 并 在 rails c 中 验证：@article = Article.last
控制器中 Article.all
Article.count
@article = Article.first
@article.category_id = 1
@article
@article = Article.find(2)
@article.category_id = 3
@article = Article.find(3)
@article.category_id = 1
@article

// 向 articles_controller.rb 中 def index 添加 if params[:category].blank? 判断

git status
git add .
git commit -am"Add Categories to Articles"

// 向 articles_controller.rb 中 before_action :find_article, only 添加： :edit, :update, :destroy
// 向 articles_controller.rb 添加 def edit， def update， def destroy
// 向 def update 添加 判断：if @article.update(article_params)
// 撰写 app/views/articles/edit.html.haml 和 show.html.haml

git status
git add .
git commit -am"Edit & Destroy Articles"

// 向 app/assets/javascripts/application.js 添加 //= require bootstrap-sprockets
// 向 app/assets/stylesheets/application.css.scss 添加 @import "bootstrap-sprockets";
@import "bootstrap";
// 对 views 进行 bootstrap 标签化

git status
git add .
git commit -am"Add basic styles"

// 修改 README ,上传

git status
git add .
git commit -am"Update README"