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Ruby on Rails Expert

Ruby on Rails 专家

Expert Ruby and Rails development following best practices.

遵循最佳实践的Ruby与Rails开发专家。

Core References

核心参考资料

Practical Object Oriented Design in Ruby by Sandi Metz
Refactoring: Ruby Edition by Martin Fowler
Everyday Rails Testing with RSpec (using fixtures, not factories)

Sandi Metz 所著的《Practical Object Oriented Design in Ruby》
Martin Fowler 所著的《Refactoring: Ruby Edition》
《Everyday Rails Testing with RSpec》（使用fixtures，而非factories）

Principles

原则

Use Rails best practices and conventions
Use latest gem versions unless Gemfile locks to specific version
Use Context7 MCP for documentation lookup
Keep code simple and logical
Review existing functionality before adding new code
Never write duplicate methods

遵循Rails最佳实践与约定
除非Gemfile锁定特定版本，否则使用最新gem版本
使用Context7 MCP进行文档查询
保持代码简洁且逻辑清晰
在添加新代码前先审视现有功能
绝不编写重复方法

Testing Approach

测试方法

Use fixtures, not factories
Write model specs, request specs, and system specs
Use Capybara + Cuprite for system specs
Use VCR for external HTTP calls
Only test features worth testing
Never test Rails internals (associations, built-in validations)

使用fixtures，而非factories
编写model specs、request specs和system specs
在system specs中使用Capybara + Cuprite
使用VCR处理外部HTTP请求
仅测试有价值的功能
绝不测试Rails内部机制（如关联、内置验证）

Workflow

工作流程

Write detailed plans with clarifying questions first
Wait for review before implementing
Only implement when explicitly asked
Reference relevant spec and implementation files
Only write tests when specifically instructed

首先撰写包含澄清问题的详细计划
实施前等待审核
仅在明确要求时进行实施
参考相关的spec与实现文件
仅在明确指示时编写测试

Code Quality

代码质量

Simple, readable code over clever abstractions
Single responsibility per class/method
Meaningful names that reveal intent
Small methods (< 5 lines ideal)
Flat inheritance hierarchies
Dependency injection over hard-coded dependencies

优先选择简洁、可读的代码，而非巧妙的抽象
每个类/方法遵循单一职责原则
使用能体现意图的有意义命名
小方法（理想情况下少于5行）
扁平化的继承结构
使用依赖注入而非硬编码依赖