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feat: 복덕방 학생 응답 MVP 항목 정리 - #2530

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@dnjswldnd-3513 dnjswldnd-3513 commented Nov 3, 2026 •

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🔍 개요

복덕방 MVP 개편(#2522)에 맞춰 학생 복덕방 응답을 기능정의서의 MVP 항목으로 정리합니다. 목록 카드에 주소를 보여 주고, 오래된 매물 정보(가격·층수·설명·옵션)는 학생에게 내려보내지 않으며, 일부 건물의 좌표 값이 잘못되어도 목록 전체가 실패하지 않도록 합니다.


🚀 주요 변경 내용

  • LandsResponse(GET /lands): 항목에 address를 추가했습니다. monthly_fee, charter_fee는 키를 유지하고 값을 null로 보냅니다. 대신 목록 카드의 매물 종류 배지(월세·전세)를 그릴 수 있도록 is_monthly_available, is_charter_available을 추가했습니다. 가격은 노출하지 않습니다(PM 정의서: 건물 카드에 건물명·주소·매물 종류).
  • 월세·전세 가능 여부 (리뷰 반영): 처음에는 DB의 월세·전세 금액이 있는지로 계산했지만, 어드민에서 가격 입력을 숨기면 새 건물은 항상 false가 되고 기존 건물도 바꿀 수 없어서 운영자가 직접 체크하는 값으로 바꿨습니다.
    • V28__add_land_rent_type_availability.sql: lands에 is_monthly_available, is_charter_available(TINYINT(1), NOT NULL, 기본 0) 추가. 기존 행은 월세·전세 금액이 비어 있지 않으면 1로 채웁니다.
    • AdminLandRequest, AdminLandService, Land: 어드민 등록·수정에 두 값을 추가했습니다. 등록 시 null이면 false, 수정 시 null이면 기존 값을 유지합니다(어드민 화면에 체크박스가 생기기 전에 배포돼도 값이 지워지지 않음).
    • AdminLandResponse: 어드민 상세에 두 값을 추가했습니다.
  • LandResponse(GET /lands/{id}): 월세·전세·보증금·관리비·층수·설명은 null, 옵션 16개는 false로 보냅니다. DB 값은 그대로 보존합니다. 방 크기가 없으면 "null" 문자열 대신 null로 보냅니다.
  • Land: 위도·경도·방 크기를 숫자로 바꿀 때, 비어 있거나 숫자가 아니거나 유한하지 않은 값(NaN, Infinity 등)이면 그 값만 null로 처리합니다. 지금은 이런 행이 하나만 있어도 목록 전체가 500이 됩니다(컬럼이 문자열이라 생길 수 있음).
  • Swagger: 비운 항목에 "MVP 개편으로 항상 null/false (예전 앱 호환을 위해 키 유지)"를 표시했습니다.

💬 참고 사항

  • 기본값으로 정한 부분 (의견 부탁드립니다): 매물 정보는 응답에서 키를 빼지 않고 값만 비웠습니다. 각 클라이언트 코드를 확인한 결과, iOS(LandDetailDto)는 옵션 16개를 non-optional Bool로 읽어서 키를 빼면 예전 앱의 상세 화면이 디코딩에 실패합니다. Android(LandResponse.kt, LandDetailResponse.kt)와 iOS 모두 가격·층수·설명은 nullable이라 null이 안전합니다. 웹(src/api/room/entity.ts)은 타입상 string이라 가격이 null일 때 화면 표시를 확인 부탁드립니다.
  • 방 크기 "null" 문자열: Android는 size: Int?라 "null" 문자열을 숫자로 읽지 못했고, iOS는 "null평"으로 보였습니다. 이번에 null로 바뀝니다.
  • 좌표가 null인 건물은 예전 앱(Android·iOS)이 좌표를 0으로 읽어 지도를 엉뚱한 곳에 그립니다(Codex 검토로 확인). 좌표가 원래 비어 있던 건물(8월 덤프 5곳)은 지금도 같은 동작이라 이 PR로 새로 생기는 문제는 아니고, 개편 전 운영 점검에서 좌표를 채우는 것으로 공유했습니다.
  • 정보 단위는 지금 데이터 그대로 한 행 = 한 카드입니다(같은 건물이 방 종류별로 나뉜 데이터가 있음, 8월 덤프 기준 12곳 30건).
  • 이 PR은 feat: 복덕방 어드민 등록·수정 MVP 대응 #2527 위에 쌓았습니다. 어드민 등록·수정 요청이 #2527에서 바뀌어서 feat/2525-land-admin-mvp-update를 합쳤습니다. 그래서 #2527이 머지되기 전까지는 이 PR의 변경 파일에 feat: 복덕방 어드민 등록·수정 MVP 대응 #2527 내용이 같이 보입니다. #2527을 먼저 머지해 주세요.
  • 어드민 화면: 숨기는 가격 입력란 대신 '월세 가능', '전세 가능' 체크박스 2개가 필요합니다.
  • 머지 순서: feat: 복덕방 조회에서 삭제된 건물 제외 #2529(삭제된 건물 제외)가 LandRepository.getById를 getActiveById로 바꿨습니다. #2529가 먼저 머지되면 이 PR에 develop을 합치고 테스트의 getById 한 줄을 맞추겠습니다.
  • 테스트: LandApiTest의 목록·상세 기대값을 새 응답에 맞게 고치고, 매물 정보는 비우되 DB 값은 유지, 방 크기 없음 null, 숫자가 아닌 좌표가 섞여도 목록 200, 월세·전세 가능 여부(체크한 값을 그대로 응답)를 추가했습니다. AdminLandApiTest에 등록(null이면 false)·수정(보낸 값만 바꾸고 null이면 유지)·상세 조회를 추가했습니다. V28의 기존 데이터 채우기는 MySQL 컨테이너에서 금액 있음/NULL/빈 문자열/공백뿐인 행으로 따로 확인했습니다. ./gradlew clean test 1735개 통과(실패 0, 건너뜀 3). 유한하지 않은 값 처리 테스트(NaN, Infinity, -Infinity, 1e309 등) 포함.

✅ Checklist

  • 코드 스타일 가이드 준수
  • 테스트 코드 포함됨
  • Reviewers / Assignees / Labels 지정 완료
  • 보안 및 민감 정보 검증

Summary by CodeRabbit

  • New Features
    • Land listings now include the property address and indicate whether monthly rent or charter options are available.
    • Property managers can set monthly and charter availability when creating or updating listings.
  • Bug Fixes
    • Missing or invalid size and coordinate values are returned as null instead of causing errors; listings remain accessible when coordinates are invalid.
    • Selected unavailable listing details now return null.
    • Partial updates retain omitted optional values, while explicitly empty values can clear supported fields.
  • Documentation
    • Land listing API guidance now explains required fields, coordinate limits, and update behavior.

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Review in Change Stack →

No actionable comments were generated in the recent review.

Walkthrough

Land responses now expose rent availability, include address in list items, and return null or fixed false values for selected student-facing fields. Admin land requests validate required values and support partial updates. Land numeric parsing and image URL serialization also handle invalid or legacy values.

Changes: Land API Changes

Layer / File(s) Summary
Land model and availability storage
src/main/java/in/koreatech/koin/domain/land/model/Land.java, src/main/resources/db/migration/V28__add_land_rent_type_availability.sql, src/test/java/in/koreatech/koin/acceptance/fixture/LandAcceptanceFixture.java
Land stores monthly and charter availability and separates basic-field updates from null-preserving listing and availability updates. Numeric getters return null for blank, invalid, or non-finite values. The migration adds availability columns and derives their initial values from non-empty fees.
Admin request and update flow
src/main/java/in/koreatech/koin/admin/land/dto/AdminLandRequest.java, src/main/java/in/koreatech/koin/admin/land/controller/AdminLandApi.java, src/main/java/in/koreatech/koin/admin/land/service/AdminLandService.java, src/main/java/in/koreatech/koin/admin/land/dto/AdminLandResponse.java, src/test/java/in/koreatech/koin/acceptance/admin/AdminLandApiTest.java
Admin requests require a nonblank address and valid coordinates. The service applies basic fields directly and retains listing or availability values when their update values are null. Admin responses include availability flags and parse image URLs as JSON, with a fallback for legacy data. Acceptance tests cover validation, partial updates, availability, and image URL parsing.
Student list and detail responses
src/main/java/in/koreatech/koin/domain/land/dto/LandResponse.java, src/main/java/in/koreatech/koin/domain/land/dto/LandsResponse.java, src/test/java/in/koreatech/koin/acceptance/domain/LandApiTest.java
Detail responses return fixed false or null values for selected listing fields. List responses add address and rent availability while fee values remain null. Tests cover response mappings, unchanged stored values, and invalid numeric values.

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant AdminLandRequest
  participant AdminLandService
  participant Land
  AdminLandRequest->>AdminLandService: provide validated update values
  AdminLandService->>Land: updateBasicInfo
  AdminLandService->>Land: updateListingInfoIfPresent
  AdminLandService->>Land: updateRentTypeAvailabilityIfPresent
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Possibly related issues

Possibly related PRs

  • BCSDLab/KOIN_API_V2#2527: It has a strong code-level connection through the shared admin land update and validation contract.
Merge Risk: Minimal · up to e8733

The land response and admin update changes are ready to merge after normal checks; no actionable issue remains from this review.

Pre-merge checks: Passed 3 · Failed 2

Failed Failed checks: 2 warnings

Check name Status Explanation Resolution
Out of Scope Changes check Warning The student response changes and their tests are in scope for #2524. The availability fields, migration, and admin support have a stated connection to the list-card rental-type badge. However, the PR … Remove the unrelated admin validation, image URL handling, partial-update behavior, and related documentation from this PR, or move them to the PR that owns those requirements. Keep only admin and persistence changes required to supply the …
Docstring Coverage Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat… Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed Passed checks: 3 passed
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed The title clearly describes the main change: aligning student-facing real-estate responses with the MVP scope.
Linked Issues check Passed Issue #2524 requirements are implemented. LandsResponse adds address and keeps fee keys with null values. Land parses latitude, longitude, and size independently and returns null for blank, …
Full details: Linked Issues check

Explanation

Issue #2524 requirements are implemented. LandsResponse adds address and keeps fee keys with null values. Land parses latitude, longitude, and size independently and returns null for blank, invalid, or non-finite values. LandResponse keeps the required detail keys, returns fees, deposit, management fee, floor, and description as null, and returns all 16 options as false without mutating stored values. Missing size returns null. Updated Swagger descriptions and acceptance tests cover these behaviors.

Full details: Out of Scope Changes check

Explanation

The student response changes and their tests are in scope for #2524. The availability fields, migration, and admin support have a stated connection to the list-card rental-type badge. However, the PR also introduces unrelated admin work: image URL JSON and legacy parsing in AdminLandResponse, coordinate and image validation in AdminLandRequest, and broad partial-update behavior and API documentation changes in AdminLandService, AdminLandRequest, and AdminLandApi. Issue #2524 does not require these admin behaviors. The PR description's reference to stacked issue #2527 does not establish that this work belongs in this PR.

Resolution

Remove the unrelated admin validation, image URL handling, partial-update behavior, and related documentation from this PR, or move them to the PR that owns those requirements. Keep only admin and persistence changes required to supply the student response fields.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 7 functions across 10 files. (1 skipped: 1 unsupported.)

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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Commits

Reviewing files that changed from the base of the PR and between 0cd6de5 and e8733ab.

Files selected for processing: 11
  • src/main/java/in/koreatech/koin/admin/land/controller/AdminLandApi.java
  • src/main/java/in/koreatech/koin/admin/land/dto/AdminLandRequest.java
  • src/main/java/in/koreatech/koin/admin/land/dto/AdminLandResponse.java
  • src/main/java/in/koreatech/koin/admin/land/service/AdminLandService.java
  • src/main/java/in/koreatech/koin/domain/land/dto/LandResponse.java
  • src/main/java/in/koreatech/koin/domain/land/dto/LandsResponse.java
  • src/main/java/in/koreatech/koin/domain/land/model/Land.java
  • src/main/resources/db/migration/V28__add_land_rent_type_availability.sql
  • src/test/java/in/koreatech/koin/acceptance/admin/AdminLandApiTest.java
  • src/test/java/in/koreatech/koin/acceptance/domain/LandApiTest.java
  • src/test/java/in/koreatech/koin/acceptance/fixture/LandAcceptanceFixture.java
Files skipped from review as they are similar to previous changes: 1
  • src/main/java/in/koreatech/koin/domain/land/dto/LandResponse.java

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@dnjswldnd-3513 dnjswldnd-3513 self-assigned this Nov 3, 2026
@github-actions github-actions Bot added the 기능 새로운 기능을 개발합니다. label Nov 3, 2026
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Unit Test Results

   309 files     309 suites   4m 44s ⏱️
1 687 tests 1 684 ✔️ 3 💤 0 ❌
1 736 runs  1 733 ✔️ 3 💤 0 ❌

Results for commit e8733ab.

♻️ This comment has been updated with latest results.

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Follow-up Comments

Nitpick Exercise all 16 stored options in the masking test.

127-162: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

Exercise all 16 stored options in the masking test.

The test stores true only for opt_refrigerator and opt_elevator. A regression can expose any of the other 14 stored options without failing the test. Set every option to true and assert every response option is false.

Suggested fix
                 .floor(3)
                 .monthlyFee("30")
                 .optRefrigerator(true)
+                .optCloset(true)
+                .optTv(true)
+                .optMicrowave(true)
+                .optGasRange(true)
+                .optInduction(true)
+                .optWaterPurifier(true)
+                .optAirConditioner(true)
+                .optWasher(true)
+                .optBed(true)
+                .optDesk(true)
+                .optShoeCloset(true)
+                .optElectronicDoorLocks(true)
+                .optBidet(true)
+                .optVeranda(true)
                 .optElevator(true)
                 .build()
         );
@@
             .andExpect(jsonPath("$.monthly_fee").value(nullValue()))
             .andExpect(jsonPath("$.opt_refrigerator").value(false))
+            .andExpect(jsonPath("$.opt_closet").value(false))
+            .andExpect(jsonPath("$.opt_tv").value(false))
+            .andExpect(jsonPath("$.opt_microwave").value(false))
+            .andExpect(jsonPath("$.opt_gas_range").value(false))
+            .andExpect(jsonPath("$.opt_induction").value(false))
+            .andExpect(jsonPath("$.opt_water_purifier").value(false))
+            .andExpect(jsonPath("$.opt_air_conditioner").value(false))
+            .andExpect(jsonPath("$.opt_washer").value(false))
+            .andExpect(jsonPath("$.opt_bed").value(false))
+            .andExpect(jsonPath("$.opt_desk").value(false))
+            .andExpect(jsonPath("$.opt_shoe_closet").value(false))
+            .andExpect(jsonPath("$.opt_electronic_door_locks").value(false))
+            .andExpect(jsonPath("$.opt_bidet").value(false))
+            .andExpect(jsonPath("$.opt_veranda").value(false))
             .andExpect(jsonPath("$.opt_elevator").value(false))

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Review comment at
@src/test/java/in/koreatech/koin/acceptance/domain/LandApiTest.java around lines
127 - 162:
Update the test 복덕방_상세에서_매물_정보는_비우고_DB_값은_유지한다() to set all 16 stored options to
true on the Land fixture and assert that every corresponding option in the
response is false. Keep the existing masking assertions and database-value
checks intact.
  • Fix comments: Fix CodeRabbit comments on this PR

boolean isMonthlyAvailable,

@Schema(description = "전세 매물 여부 - 가격 대신 매물 종류 표시용", example = "false", requiredMode = REQUIRED)
boolean isCharterAvailable

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매물 여부(True / False)는 어디서 관리하나요??

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지금은 따로 관리하는 값이 없고, DB에 월세·전세 금액이 들어 있는지로 서버가 계산하고 있습니다!

Comment on lines +61 to +62
StringUtils.hasText(land.getMonthlyFee()),
StringUtils.hasText(land.getCharterFee())

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어드민이 MVP 항목만 관리하게 된다면 전·월세를 추가 및 수정하지 못할텐데 그러면 결국 새롭게 등록된 곳은 항상 전·월세 매물 여부가 False로 되지 않나요??

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맞습니다! 어드민에서 가격 입력을 숨기면 새로 등록한 건물은 항상 false가 되고, 기존 건물도 바꿀 방법이 없어지네요. 놓친 부분 짚어주셔서 감사합니다 !!!

월세·전세 가능 여부를 lands에 별도 컬럼(is_monthly_available, is_charter_available)으로 두고 어드민에서 직접 체크하도록 바꾸겠습니다. 기존 데이터는 금액이 있으면 true로 채워 두겠습니다!

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사실 기획과 관련된 부분이니 PM과 상의해봐도 좋을 듯 싶습니당

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넵!!!

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[공통] 복덕방 학생 응답 MVP 항목 정리

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