refactor: 텃밭 id 목록 조회 수정

[xoruddl]

📝 개요
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작업 내용 1
작업 내용 2
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🔗 관련 이슈
이번 PR과 관련된 이슈 번호를 기재해 주세요. 예: Closes #143

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Summary by CodeRabbit

• 버그 수정

  • 내 정원 ID 조회 시 간헐적 오류를 해소하여 실패율을 감소시켰습니다.

• 성능 개선

  • 사용자와 정원 정보를 한 번에 조회해 응답 속도와 일관성을 향상했습니다.
  • 조회 로직을 서비스 레이어로 위임하여 안정성을 높였습니다.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

UserRepository에 사용자와 연관 텃밭을 함께 조회하는 메서드가 추가되었고, UserService에 정렬된 텃밭 ID 목록을 반환하는 read-only 트랜잭션 메서드가 도입되었습니다. UserController는 텃밭 ID 조회 로직을 서비스로 위임하도록 리팩터링되었습니다.

Changes

Cohort / File(s)	Summary
Repository: eager fetch for gardens src/main/java/com/example/cp_main_be/domain/member/user/domain/repository/UserRepository.java	findByIdWithGardens(Long userId) 추가. JPQL LEFT JOIN FETCH로 사용자와 gardens 동시 로딩. @Query, @Param 도입.
Service: garden IDs retrieval src/main/java/com/example/cp_main_be/domain/member/user/service/UserService.java	getMyGardenIds(User user) 추가. @Transactional(readOnly = true). findByIdWithGardens 사용, 존재하지 않으면 UserNotFoundException. slotNumber 기준 정렬 후 ID 리스트 반환.
Controller: delegate to service src/main/java/com/example/cp_main_be/domain/member/user/presentation/UserController.java	컨트롤러 내 스트림 정렬/매핑 로직 제거. userService.getMyGardenIds(user) 호출로 위임. 불필요한 import 제거.

Sequence Diagram(s)

sequenceDiagram
  participant C as UserController
  participant S as UserService
  participant R as UserRepository
  participant DB as Database

  C->>S: getMyGardenIds(user)
  activate S
  S->>R: findByIdWithGardens(user.id)
  R->>DB: SELECT u LEFT JOIN FETCH u.gardens WHERE u.id = :userId
  DB-->>R: User(+gardens) or null
  alt User not found
    S-->>C: throw UserNotFoundException
  else Found
    S-->>C: List<Long> (sorted by slotNumber)
  end
  deactivate S

  note over C,S: Controller는 서비스로 위임 (변경된 흐름)

Loading

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Assessment against linked issues

Objective	Addressed	Explanation
텃밭 오류 수정 (#143)	❓	오류의 구체적 정의가 없어 실제 버그 조건 충족 여부를 판단 불가. LazyInitializationException 방지 의도로 보이나 일치 여부 불명.

Assessment against linked issues: Out-of-scope changes

Code Change	Explanation
컨트롤러 내부 정렬/매핑 로직을 서비스로 이동 (src/main/java/com/example/cp_main_be/domain/member/user/presentation/UserController.java)	리팩터링 자체는 구조 개선이지만 링크된 이슈 설명에 명시된 범위(오류 수정)와 직접적 연관이 명확하지 않음.

Poem

당근 깃발 펄럭, 나는 토끼 개발자! 🥕
한 번에 텃밭 쏙—조인으로 챱챱 가져와,
컨트롤러는 가볍게, 서비스가 착!
빈 밭 오류야, 이제 뛰어넘자 퐁!
정렬된 밭길 따라, 버그는 뿅 사라졌네.

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📥 Commits

Reviewing files that changed from the base of the PR and between f23acb0 and 6db3e28.

📒 Files selected for processing (3)

• src/main/java/com/example/cp_main_be/domain/member/user/domain/repository/UserRepository.java (1 hunks)
• src/main/java/com/example/cp_main_be/domain/member/user/presentation/UserController.java (1 hunks)
• src/main/java/com/example/cp_main_be/domain/member/user/service/UserService.java (1 hunks)

✨ Finishing Touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch 143-텃밭-오류-수정

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