设计模式不是只有Java才需要的。Rails通过使用设计模式以提供用于JSON解析以及数据库维护的统一接口。由于Ruby的灵活性,类似DateTime以及Time这样的类可以被直接地修改而提供相似的接口。Rails的源码就是一个可以让你挖掘真实世界中不同设计模式实例的天堂。 在这次的实践中,我们同时也发掘了一些有趣的代码: hash[:
Ruby on Rails是一种基于Ruby语言的开源Web应用框架,它采用MVC(Model-View-Controller)设计模式,可以帮助开发者快速构建Web应用程序。Ruby on Rails的主要特点包括: 开发效率高:Ruby on Rails具有自动化代码生成和数据库迁移功能,可以大大提高开发效率。 模块化:Ruby on Rails采用模块化设计,使得开发者可以根据需要选择...
在详细的介绍Rails2.0之前,我要向那些为Rails框架做出过贡献的每一个人致以深深的谢意,不论是像一个家庭那样其乐融融的Rails核心开发团队,还是成千上万的、而且年复一年为Rails提交补丁,积极参与Rails社区人们。Rails2.0也是大规模开源软件开发社区的一个重大胜利,而你完全可以自豪于你在Rails社区当中扮演的角色和做出...
Ruby on Rails also offers a large and supportive community. This ensures access to extensive documentation and many open-source libraries and plugins, making the application development process more efficient and economical. And the Rails framework’s convention-over-configuration approach promotes clean,...
Ruby on Rails 学习笔记 1、创建新项目simple_cms 1 rails new simple_cms -d mysql 2、在/config/database.yml中配置项目数据库信息 default:&defaultadapter: mysql2 encoding: utf8 pool: 5 username: anuo password: xxxxxx host: localhost development:<<:*default...
Ruby on Rails适合开发哪类应用? 没有创建成功,但是反馈结果却是成功 (说明这是一批命令,最后一个反馈结果正常),并且生成一个文件目录 从输出可以看到 Gem::RemoteFetcher::FetchError: Errno::ECONNRESET: Connection reset by peer - SSL_connect (https://rubygems.org/gems/rake-11.1.2.gem) 原因是 bundle...
rails server|s 启动服务器 rails console 开启控制台 rails generate controller StaticPages home help --no-test-framework 使用 --no-test-framework 选项禁用rspec框架生成测试代码。另外Rails会调用underscore方法把驼峰式的命名修改为蛇底式。例如上面的StatiPages的控制器对应的文件名为:static_pages_controller....
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designing a one-to-many relationship between events and registrations. One of the most powerful features of Rails is the ability to easily create these types of associations. But knowing the magic incantations isn't enough. To be empowered, you also need to how what goes on behind the scenes...
1.下面要修改rails_apps\depot\app\models目录下的order.rb和line_item.rb文件: class Order < ActiveRecord::Base has_many :line_items PAYMENT_TYPES = [ [ "Check", "check" ], [ "Credit Card", "cc" ], [ "Purchase Order", "po" ] ...