> For the complete documentation index, see [llms.txt](https://simian114.gitbook.io/blog/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7.md).

# 모델

- [validation](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/validation-1.md)
- [seeds 데이터 validation 스킵](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/validation-1/seeds-validation.md)
- [validation 검사가 save, update, create 모든 경우에 일어난다](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/validation-1/validation-save-update-create.md)
- [validator 클래스](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/validation-1/validator.md)
- [커스텀Validation](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/validation-1/validation.md): 너무 오랜만이다...
- [validates format(정규표현식)](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/validation-1/validates-format.md)
- [액티브레코드 find의 다양한 활용](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/find.md)
- [한 레코드에 동시 접속 막자!! with\_lock](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/with_lock.md)
- [레일즈 where 사용법](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/where.md)
- [레일즈에서 모델 관련 이슈](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/undefined-3.md): 컨트롤러는 가볍게 모델은 두껍게
- [모델이름바꿀때명심할것](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/undefined-1.md)
- [모델의 includes 메서드](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/includes.md)
- [연관 모델을 다른 이름으로 설정하고 가져오기](https://simian114.gitbook.io/blog/undefined/rubyonrails/undefined-7/undefined.md)