> For the complete documentation index, see [llms.txt](https://timhwang21.gitbook.io/index/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://timhwang21.gitbook.io/index/programming/rails.md).

# Rails

- [Attributes](https://timhwang21.gitbook.io/index/programming/rails/attributes.md)
- [Cheap many to many](https://timhwang21.gitbook.io/index/programming/rails/cheap-many-to-many.md)
- [(Don't use) counter cache](https://timhwang21.gitbook.io/index/programming/rails/counter-cache.md)