Ruby中的设计哲学

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• Follow web standards and HTTP　遵循Web标准和HTTP
• CoC (Convention over Configuration)　约定大于配置
• MVC (Model-View-Controller)
• DRY　不要重复造轮子（如：gems ）
• Software Engineering Patterns
• Assets　静态资源
• Restful　API
• Testing　测试
• Deployment　部署
• Automation　自动化（数据修改，移植）

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Agile Development　敏捷开发

• Philosophy
• DRY
• Ecosystem: Gems / Community

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从本地开发到线上

• Development Environments: Development / Test / Production / Staging(自定义模拟线上环境)
• Test
• Configurations 配置
• Deployment　部署

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Pages & Assets

• Dynamic pages: Routes / Restful / Inheritance(继承)
• Assets: Asset Pipeline / Minify / Combine / Webpack / babel etc.

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Dynamic Pages

• Routes　路由
  
  • HTTP GET/POST/PUT/DELETE
  • Custom routes
  • Easy to refactor
• Filter　过滤器
  
  • before_filter
  • around_filter
  • after_filter
• Cache　缓存
  
  • Page Cache
  • Fragment Cache
• Response
  
  • HTML
  • JSON
  • XML
  • etc.

ActiveRecord

• Powerful ORM

    User.find(2)
    User.find_by(email: 'service@abc.com')
    User.where(membership: 'gold').page(2)
      .per_page(10).order("id desc").limit(10)
    user.blogs

• Triggers　回调
  
  • before_save
  • after_save
  • after_destroy
  • after_create
  • etc.

Assets

• Javascript/CSS minify and combine
• Assets URL
• ETag
• SASS
• CoffeeScript

从开发到测试

• Unit Test: rspec / minitest
• Smoke Test / Continuous Integration: cucumber / selenium

脚本和自动化

• rails c
• rails g
• rails s
• etc.
• rake task
  
  • rake routes
  • rake db:create
  • rake db:migrate
  • etc.

自定义rake任务

Libraries

• gem
• bundle
• rails是很多gems的组合
• 创建自己的gem