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[๐Ÿš€ ์‚ฌ์ดํด2 - ๋ฏธ์…˜ (์˜ˆ์•ฝ ๋ณ€๊ฒฝ/์ทจ์†Œ์™€ ์—๋Ÿฌ ์ฒ˜๋ฆฌ)] ์˜๊ธฐ(๊น€๊ธฐ์˜) ๋ฏธ์…˜ ์ œ์ถœํ•ฉ๋‹ˆ๋‹ค.#430

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@Giyoul Giyoul commented May 13, 2026

์ธ์‚ฌ๋ง

์•„๋ฃจ ์•ˆ๋…•ํ•˜์„ธ์š”!
๋น ๋ฅด๊ฒŒ ์ฝ”๋“œ๋ฅผ ๊ฐ€์ง€๊ณ  ๋Œ์•„์™”์Šต๋‹ˆ๋‹ค!
cycle1 ๋งˆ์ง€๋ง‰์— ์ฃผ์‹  ํ”ผ๋“œ๋ฐฑ ๋‚ด์šฉ๊ณผ ์ œ๊ฐ€ ๋‹ค์Œ ์‚ฌ์ดํด๋กœ ๋ฏธ๋ฃจ๊ฒ ๋‹ค๊ณ  ๋ง์”€๋“œ๋ ธ๋˜ ๋ฆฌํŒฉํ† ๋ง ์‚ฌํ•ญ๋“ค ๋˜ํ•œ ์ „๋ถ€ ์ ์šฉํ•ด์„œ ๊ฐ€์ ธ์™”์œผ๋‹ˆ, ํ™•์ธํ•ด์ฃผ์‹œ๋ฉด ๊ฐ์‚ฌ๋“œ๋ฆฌ๊ฒ ์Šต๋‹ˆ๋‹ค!
์ž˜ ๋ถ€ํƒ๋“œ๋ฆฝ๋‹ˆ๋‹ค :)

์ฒดํฌ ๋ฆฌ์ŠคํŠธ

  • ๋ฏธ์…˜์˜ ํ•„์ˆ˜ ์š”๊ตฌ์‚ฌํ•ญ์„ ๋ชจ๋‘ ๊ตฌํ˜„ํ–ˆ๋‚˜์š”?
  • Gradle test๋ฅผ ์‹คํ–‰ํ–ˆ์„ ๋•Œ, ๋ชจ๋“  ํ…Œ์ŠคํŠธ๊ฐ€ ์ •์ƒ์ ์œผ๋กœ ํ†ต๊ณผํ–ˆ๋‚˜์š”?
  • ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์ด ์ •์ƒ์ ์œผ๋กœ ์‹คํ–‰๋˜๋‚˜์š”?

๋ฒ ์ด์Šค ์ฝ”๋“œ ์„ ํƒ ์ฒดํฌ

  • ์ด์ „ ๋ฏธ์…˜์˜ ๋‚ด ์ฝ”๋“œ์—์„œ ์‹œ์ž‘
  • ์ด์ „ ๋ฏธ์…˜์˜ ํŽ˜์–ด์˜ ์ฝ”๋“œ์—์„œ ์‹œ์ž‘

์–ด๋–ค ๋ถ€๋ถ„์— ์ง‘์ค‘ํ•˜์—ฌ ๋ฆฌ๋ทฐํ•ด์•ผ ํ• ๊นŒ์š”?

๋ž˜ํผ DTO ์„ค๊ณ„ ๋ฐฉ์‹์— ๋Œ€ํ•œ ๊ณ ๋ฏผ ์งˆ๋ฌธ

ํ˜„์žฌ ๊ฐ ์‘๋‹ต๋งˆ๋‹ค ๋ณ„๋„ ํด๋ž˜์Šค๋ฅผ ๋‘๋Š” ๋ฐฉ์‹์œผ๋กœ ๊ตฌํ˜„ํ–ˆ๋Š”๋ฐ, ๋‹ค๋ฅธ ๋ฐฉ์‹๊ณผ ๋น„๊ตํ•ด ์–ด๋–ค ๋ฐฉํ–ฅ์ด ๋” ์ ์ ˆํ•œ์ง€ ์—ฌ์ญค๋ณด๊ณ  ์‹ถ์Šต๋‹ˆ๋‹ค.

๋ฐฉ์‹ 1. ๋ณ„๋„ ํด๋ž˜์Šค (ํ˜„์žฌ)

public record ReservationsResponse(List reservations) {}
public record ReservationTimesResponse(List times) {}
{"reservations": [...]}
{"times": [...]}

๋ฐฉ์‹ 2. ์ œ๋„ค๋ฆญ ๊ณตํ†ต ํด๋ž˜์Šค

public record ListResponse(List items) {}
{"items": [...]} // ํ•„๋“œ๋ช…์ด ํš์ผํ™”๋จ

๋ฐฉ์‹ 3. Inner class๋กœ ๋ฌถ๊ธฐ

public class CollectionResponse {
  public record Reservations(List reservations) {}
  public record Times(List times) {}
}

๋ฐฉ์‹ 1์€ JSON ํ•„๋“œ๋ช…์ด ๋ช…ํ™•ํ•˜๊ณ  ์‘๋‹ต๋ณ„ ํ™•์žฅ์ด ์ž์œ ๋กญ์ง€๋งŒ ํŒŒ์ผ์ด ๋งŽ์•„์ง€๊ณ , ๋ฐฉ์‹ 2๋Š” ์ฝ”๋“œ๊ฐ€ ์ค„์ง€๋งŒ ํ•„๋“œ๋ช… ํ‘œํ˜„๋ ฅ์ด ๋–จ์–ด์ง€๋ฉฐ, ๋ฐฉ์‹ 3์€ ํŒŒ์ผ ์ˆ˜๋ฅผ ์ค„์ด๋ฉด์„œ ํ•„๋“œ๋ช…์€ ์œ ์ง€ํ•  ์ˆ˜ ์žˆ์ง€๋งŒ ํƒ€์ž…๋ช…์ด ๊ธธ์–ด์ง€๋Š” ํŠธ๋ ˆ์ด๋“œ์˜คํ”„๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
์ด๋ฒˆ ๋ฏธ์…˜์—์„œ ์ €๋Š” 1๋ฒˆ ๋ฐฉ์‹์„ ์„ ํƒํ–ˆ๊ณ , ํ‰์†Œ์— ํ”„๋กœ์ ํŠธ๋ฅผ ํ•  ๋•Œ๋Š” 3๋ฒˆ ๋ฐฉ์‹์„ ์„ ํ˜ธํ•˜๋Š” ํŽธ์ž…๋‹ˆ๋‹ค.
์ด ๋ถ€๋ถ„์€ ํ•ญ์ƒ ๊ณ ๋ฏผ์„ ํ•˜์ง€๋งŒ, ์ •๋‹ต์ด ์—†๋‹ค๊ณ  ๋А๊ปด์ ธ์„œ ์–ด๋ ค์šด ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
๋ฌผ๋ก  ์ด ๋ถ€๋ถ„์ด ํŒ€ ๋‚ด ์ปจ๋ฒค์…˜์ผ ๊ฒƒ ๊ฐ™๊ธด ํ•œ๋ฐ, ์•„๋ฃจ๋Š” ๊ฐœ์ธ ๊ฐœ๋ฐœํ•˜์‹ค๋–„ ์–ด๋А ๋ฐฉํ–ฅ์„ ์„ ํ˜ธํ•˜์‹œ๋Š”์ง€ ๊ถ๊ธˆํ•ด์ง€๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค!

Giyoul added 13 commits May 12, 2026 15:18
ํ™•์žฅ์„ฑ์„ ์œ„ํ•ด List๋ฅผ ์ง์ ‘ ๋ฐ˜ํ™˜ํ•˜๋˜ ๋ชจ๋“  ์—”๋“œํฌ์ธํŠธ๋ฅผ
๋ž˜ํผ ๊ฐ์ฒด๋กœ ๊ฐ์‹ธ๋„๋ก ์ˆ˜์ •

- AdminReservationsResponse, ReservationsResponse
- ReservationTimesResponse, ThemesResponse
- AvailableReservationTimesResponse
- reservation ํ…Œ์ด๋ธ”์— created_at ์ปฌ๋Ÿผ ์ถ”๊ฐ€
- Reservation.create()๋กœ ์‹ ๊ทœ ์ƒ์„ฑ ์‹œ ๊ณผ๊ฑฐ ๋‚ ์งœ ๊ฒ€์ฆ
- Reservation.restore()๋กœ DB ๋ณต์› ์‹œ ๊ฒ€์ฆ ์—†์ด ์žฌ๊ตฌ์„ฑ
- ReservationDao.save()๊ฐ€ Reservation์„ ๋ฐ›์•„ ID ํฌํ•จ Reservation ๋ฐ˜ํ™˜
- ์„œ๋น„์Šค์—์„œ ๊ฒ€์ฆ์šฉ ๊ฐ์ฒด๋ฅผ ๋”ฐ๋กœ ์ƒ์„ฑํ•˜๋˜ ๊ตฌ๋ฌธ ์ œ๊ฑฐ
- DAO ํ…Œ์ŠคํŠธ๋ฅผ EmbeddedDatabaseBuilder๋กœ ์ „ํ™˜ โ€” Spring Boot ์ปจํ…์ŠคํŠธ ์ œ๊ฑฐ
- DaoTest ์ถ”์ƒ ํด๋ž˜์Šค ์‚ญ์ œ
- Tautological test ์ œ๊ฑฐ (Mock ์ถœ๋ ฅ์„ ๊ทธ๋Œ€๋กœ ๊ฒ€์ฆํ•˜๋Š” ์„œ๋น„์Šค ํ…Œ์ŠคํŠธ)
- data.sql ํ•˜๋“œ์ฝ”๋”ฉ ์˜์กด ํ…Œ์ŠคํŠธ ๊ฐœ์„  (isNotEmpty, before-1 ํŒจํ„ด)
- ThemeControllerTest ์ž˜๋ชป๋œ ์—”๋“œํฌ์ธํŠธ ์ˆ˜์ • (/themes โ†’ /themes/popular)
- ๋‚ ์งœ+์‹œ๊ฐ„ ๊ธฐ์ค€ ๊ณผ๊ฑฐ ์˜ˆ์•ฝ ๋ถˆ๊ฐ€ (LocalDateTime ๋น„๊ต๋กœ ๋ณ€๊ฒฝ)
- created_at ์ปฌ๋Ÿผ DATE โ†’ TIMESTAMP๋กœ ๋ณ€๊ฒฝ
- ์ด๋ฏธ ์ง€๋‚œ ์˜ˆ์•ฝ ์ทจ์†Œ ๋ถˆ๊ฐ€
- @Valid ์ ์šฉ โ€” ReservationRequest, ReservationTimeRequest, ThemeRequest
- ReservationDao.findById() ์ถ”๊ฐ€
- ErrorResponse(code, message) DTO ์ถ”๊ฐ€
- GlobalExceptionHandler ๋ณด๊ฐ•
  - MethodArgumentNotValidException โ†’ 400 INVALID_INPUT
  - HttpMessageNotReadableException โ†’ 400 INVALID_FORMAT
  - NoResourceFoundException โ†’ 404 NOT_FOUND
  - Exception fallback โ†’ 500 SERVER_ERROR
- ReservationUpdateRequest(date, timeId) DTO ์ถ”๊ฐ€
- ReservationDao.update() ์ถ”๊ฐ€
- ReservationService.update() โ€” ์กด์žฌ ์—ฌ๋ถ€, ๊ณผ๊ฑฐ ๋‚ ์งœ, ์ค‘๋ณต ์˜ˆ์•ฝ ๊ฒ€์ฆ
- PastReservationException โ†’ 422 (๊ณผ๊ฑฐ ๋‚ ์งœ ์˜ˆ์•ฝ/์ทจ์†Œ/๋ณ€๊ฒฝ)
- ReservationConflictException โ†’ 409 (์ค‘๋ณต ์˜ˆ์•ฝ)
- GlobalExceptionHandler์— 422, 409 ํ•ธ๋“ค๋Ÿฌ ์ถ”๊ฐ€
- ์˜ˆ์•ฝ ๋ชฉ๋ก์— ๋ณ€๊ฒฝ ๋ฒ„ํŠผ ์ถ”๊ฐ€
- ๋‚ ์งœยท์‹œ๊ฐ„ ์„ ํƒ ๋ชจ๋‹ฌ ๊ตฌํ˜„
- PATCH /reservations/{id} ํ˜ธ์ถœ
- code ๊ธฐ๋ฐ˜ ์‚ฌ์šฉ์ž ์นœํ™”์  ์—๋Ÿฌ ๋ฉ”์‹œ์ง€ ์ฒ˜๋ฆฌ
- ์‚ญ์ œ ์—๋Ÿฌ๋„ code ๊ธฐ๋ฐ˜์œผ๋กœ ๊ฐœ์„ 
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์˜๊ธฐ ์•ˆ๋…•ํ•˜์„ธ์š”~ ์ด๋ฒˆ ์‚ฌ์ดํด ๋น ๋ฅด๊ฒŒ ์ง„ํ–‰ํ•ด์ฃผ์‹  ๋•๋ถ„์— ์žฌ๋ฏธ์žˆ๋Š” ์ด์•ผ๊ธฐ๋ฅผ ๋งŽ์ด ๋‚˜๋ˆ ๋ณผ ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™๋„ค์š” ๐Ÿ˜Ž ๊ฐœ๋ฐœ์ž๋งˆ๋‹ค ์„ฑํ–ฅ์ด ๋‹ค๋ฅด๊ฒ ์ง€๋งŒ, ์ €๋Š” ๊ฐ์ฒด์ง€ํ–ฅ์œผ๋กœ๋ถ€ํ„ฐ ๋ป—์–ด๋‚˜๊ฐ€๋Š” ์„ค๊ณ„๋ฅผ ์ข‹์•„ํ•˜๋Š” ํŽธ์ด๋ผ ๋ช‡ ๊ฐ€์ง€ ์ฝ”๋ฉ˜ํŠธ๋ฅผ ๋‚จ๊ฒจ๋ณด์•˜์–ด์š”. ๋‹ค์–‘ํ•œ ๊ด€์ ์„ ์‚ดํŽด๋ณด๊ณ  ์ด์•ผ๊ธฐํ•˜๋Š” ์‹œ๊ฐ„์ด ๋˜์—ˆ์œผ๋ฉด ์ข‹๊ฒ ์Šต๋‹ˆ๋‹ค.

์š”๊ตฌ์‚ฌํ•ญ์€ ์ „์ฒด์ ์œผ๋กœ ์ž˜ ๋งŒ์กฑํ•˜๊ณ  ์žˆ๊ณ , ๋ช‡ ๊ฐ€์ง€ ๋ณด์™„ํ•  ๋ถ€๋ถ„์— ๋Œ€ํ•ด์„œ ๋ฆฌ๋ทฐ๋ฅผ ๋‚จ๊ฒจ๋‘์—ˆ์œผ๋‹ˆ ์ฝ”๋ฉ˜ํŠธ ํ™•์ธํ•ด์ฃผ์„ธ์š”~

import java.util.List;

public record AdminReservationsResponse(List<AdminReservationResponse> reservations) {
} No newline at end of file
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Image

์ด ๋ชจ์–‘์ด ์–ด๋–ค ๊ฒƒ์„ ์˜๋ฏธํ•˜๋Š”์ง€ ์•Œ์•„๋ณด๊ณ , ์ „์ฒด์ ์œผ๋กœ ์ ์šฉํ•ด๋ณผ๊นŒ์š”?

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POSIXํ‘œ์ค€์ด๊ณ , cat ๊ฐ™์€ ๋ช…๋ น์–ด ์ณค์„๋•Œ์— ํŒŒ์ผ์ด ๋ถ™์–ด๋ฒ„๋ฆฌ๋Š” ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
์ด ๋ถ€๋ถ„์€ ์ „ ๋ฆฌ๋ทฐ์–ด ๋ถ„๋“คํ•œํ…Œ๋„ ๊ณตํ†ต์ ์œผ๋กœ ์ง€์ ๋ฐ›์•˜๋˜ ๋ถ€๋ถ„์ด๊ณ , ๊ทธ๋ž˜์„œ EOF์— ์—”ํ„ฐ ์‚ฝ์ž… intellij ์ž๋™๊ธฐ๋Šฅ๋„ ์„ค์ •ํ•ด๋‘์—ˆ๋Š”๋ฐ, ๋ญ”๊ฐ€ ์ถฉ๋Œ์ด ์žˆ๋Š”์ง€ ์ž๊พธ ์ง€์›Œ์ง€๋„ค์š”ใ… ใ… 
ํ”ผ์•Œ ๋‚ ๋ฆฌ๊ธฐ ์ „์—๋„ ๋งˆ์ง€๋ง‰์œผ๋กœ ๋ชจ๋“  ํŒŒ์ผ ๋“ค์–ด๊ฐ€์„œ option + command + L๋กœ ํŒŒ์ผ ํฌ๋ฉง ์ •๋ฆฌ๋„ ํ•˜๊ณ  EOF์— ์—”ํ„ฐ ์•ˆ์ณ์ ธ์žˆ์œผ๋ฉด ์ˆ˜๋™์œผ๋กœ ํ•˜๋‚˜ํ•˜๋‚˜ ์ถ”๊ฐ€ํ–ˆ๋Š”๋ฐ, ์–ด๊น€์—†์ด ์ง€์›Œ์ ธ ์žˆ๋„ค์š”...

์ผ๋‹จ ํŒŒ์ผ ๋‹ค ํ™•์ธํ•˜๊ณ  ์ˆ˜๋™์œผ๋กœ ์—”ํ„ฐ ๋‹ค์‹œ ์ถ”๊ฐ€ํ•˜๋„๋ก ์ˆ˜์ •ํ•ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค...

@@ -0,0 +1,7 @@
package roomescape.exception;

public class PastReservationException extends RuntimeException {
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์ด ์˜ˆ์™ธ๋Š” ์–ด๋””์—์„œ ๋ฐœ์ƒํ•˜๋‚˜์š”? Dao์—์„œ๋„, Controller์—์„œ ๋ฐœ์ƒํ•ด๋„ ์–ด์ƒ‰ํ•˜์ง€ ์•Š์€ ํŒจํ‚ค์ง€ ์œ„์น˜๋กœ ๋ณด์—ฌ์š”. ๋ฐœ์ƒํ•˜๋Š” ๊ณณ์—์„œ ์˜ˆ์™ธ๋ฅผ ์ •์˜ํ•˜๋ฉด ์–ด๋–จ๊นŒ์š”?

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๋งค๋ฒˆ ํŒจํ‚ค์ง•์ด ์–ด๋ ค์šด ๊ฒƒ ๊ฐ™๋„ค์š”..
PastReservationException์€ Reservation ๋„๋ฉ”์ธ ๊ฐ์ฒด์—์„œ, ReservationConflictException์€ ReservationService์—์„œ ๋ฐœ์ƒํ•ฉ๋‹ˆ๋‹ค.
๋ง์”€๋Œ€๋กœ ๊ฐ๊ฐ domain๊ณผ service ํŒจํ‚ค์ง€๋กœ ์ด๋™ํ•˜๋ฉด ์˜ˆ์™ธ๊ฐ€ ๋ฐœ์ƒ ๋งฅ๋ฝ๊ณผ ๊ฐ€๊นŒ์›Œ์ง€๊ณ  ๋ณ„๋„์˜ exception ํŒจํ‚ค์ง€๋„ ์ œ๊ฑฐํ•  ์ˆ˜ ์žˆ๊ฒ ๋„ค์š”.
์ˆ˜์ •ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.


@Transactional
public Reservation update(long id, LocalDate date, long timeId) {
Reservation reservation = reservationDao.findById(id)
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์—ฌ๊ธฐ์—๋Š” final์ด ๋ถ™์ง€ ์•Š์•˜๋„ค์š”? ์ด์œ ๊ฐ€ ์žˆ์—ˆ๋‚˜์š”? ๋ฉ”์„œ๋“œ ๋‚ด์—์„œ ๋ณ€์ˆ˜๋ฅผ ์žฌํ• ๋‹นํ•˜์ง€ ์•Š๋Š”๋‹ค๋Š” ์ปจ๋ฒค์…˜์„ ๋ชจ๋‘๊ฐ€ ๊ณต์œ ํ•˜๊ณ  ์žˆ๋‹ค๋ฉด ์ œ๊ฑฐํ•˜๋Š” ๋ฐฉํ–ฅ์œผ๋กœ ํ†ต์ผํ•˜๋Š” ๊ฒƒ๋„ ์ข‹์€ ๋ฐฉ๋ฒ• ์ค‘ ํ•˜๋‚˜๋ผ๊ณ  ์ƒ๊ฐํ•ด์š”~

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์Œ... ์ด๊ฑด ๊ทธ์ € '๋‚ด ์ฝ”๋“œ ๊ตฌ๋ ค ๋ณ‘'์ด ๋„์ ธ์„œ ์ƒ๊ธด ๋ฌธ์ œ์ธ ๋“ฏ ํ•ฉ๋‹ˆ๋‹ค..
ํ•„๋“œ๋Š” final ์œ ์ง€, ๋กœ์ปฌ ๋ณ€์ˆ˜๋Š” ์ œ๊ฑฐ๋กœ ๊ตฌ๋ถ„ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.

Comment on lines +48 to +50
if (LocalDateTime.of(date, newTime.getStartAt()).isBefore(LocalDateTime.now())) {
throw new PastReservationException("๊ณผ๊ฑฐ ๋‚ ์งœ๋กœ๋Š” ์˜ˆ์•ฝํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.");
}
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ํ˜„์žฌ Controller-Service-Dao์˜ ๊ณ„์ธต์œผ๋กœ ๋‚˜๋ˆ  ์ฃผ์…”์„œ, ๋„๋ฉ”์ธ์ด๋ผ๋Š” ๊ฐœ๋…์ด ์กฐ๊ธˆ ์–‡์•„์งˆ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋„๋ฉ”์ธ ์ง€์‹๊ณผ ๊ณ„์ธต ๊ตฌ์กฐ๋Š” ์„œ๋กœ ์ƒ๋ฐ˜๋˜๋Š” ๊ฒƒ์ด ์•„๋‹ˆ๋ผ์„œ ํ•จ๊ป˜ ์–ด์šฐ๋Ÿฌ์งˆ ์ˆ˜ ์žˆ๋Š”๋ฐ์š”.

  1. ๊ณผ๊ฑฐ ๋‚ ์งœ๋กœ ์˜ˆ์•ฝํ•  ์ˆ˜ ์—†๋‹ค๋Š” ์˜ˆ์•ฝ์—๊ฒŒ ์žˆ์–ด์„œ ์ ˆ๋Œ€์ ์ธ ๋ถˆ๋ณ€์‹์— ํ•ด๋‹นํ•˜์ง€ ์•Š์„๊นŒ์š”?
  2. ๋งŒ์•ฝ ๊ทธ๋ ‡๋‹ค๋ฉด, ํ˜„์žฌ ์‹œ๊ฐ„์ด ์˜ˆ์•ฝ์— ์กด์žฌํ•˜์ง€ ์•Š์œผ๋‹ˆ Service์—์„œ ์ง„ํ–‰ํ•˜๋Š” ๊ฒƒ์€ ์ž์—ฐ์Šค๋Ÿฌ์›Œ ๋ณด์ž…๋‹ˆ๋‹ค.
  3. ๋‹ค๋งŒ, ์˜ˆ์•ฝ์—๊ฒŒ๋Š” ์˜ˆ์•ฝ ์‹œ๊ฐ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ์˜ˆ์•ฝ์„ ์ง„ํ–‰ํ•œ ์‹œ๊ฐ๋„ ์ค‘์š”ํ•œ ์ •๋ณด ์•„๋‹๊นŒ์š”?

๊ฒ€์ฆ์„ ์„œ๋น„์Šค๊ฐ€ ์•„๋‹Œ ๋„๋ฉ”์ธ๋‹จ์œผ๋กœ ์ด๋™ํ•˜๋ฉด ์–ด๋–ค ์ ์ด ์ด์ ์œผ๋กœ ๋‹ค๊ฐ€์˜ฌ์ง€ ๊ณ ๋ฏผํ•ด๋ณด์…”๋„ ์ข‹๊ฒ ์Šต๋‹ˆ๋‹ค. (์˜ˆ์•ฝ ์‹œ๊ฐ„, ์˜ˆ์•ฝ์— ๋Œ€ํ•œ ๊ฒ€์ฆ์˜ ๊ฒฝ์šฐ์—๋Š” ๋„๋ฉ”์ธ ํ˜ผ์ž์„œ๋Š” ํ•ด๊ฒฐํ•  ์ˆ˜ ์—†์œผ๋ฏ€๋กœ Service ๊ณ„์ธต์˜ ๋„์›€์„ ๋ฐ›์•„์•ผ ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค)

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save()์—์„œ๋Š” Reservation.create()๊ฐ€ ๊ณผ๊ฑฐ ๋‚ ์งœ๋ฅผ ๊ฒ€์ฆํ•˜๊ณ  ์žˆ์–ด์„œ ๋„๋ฉ”์ธ์ด ์ œ ์—ญํ• ์„ ํ•˜๊ณ  ์žˆ๋Š”๋ฐ, update()์™€ delete()์—์„œ๋Š” ๋™์ผํ•œ ๋ถˆ๋ณ€์‹์„ ์„œ๋น„์Šค๊ฐ€ ์ง์ ‘ ์ฒดํฌํ•˜๊ณ  ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
์ด๊ฑฐ๋ฅผ ๋„๋ฉ”์ธ ์ฑ…์ž„์ด ์ผ๊ด€๋˜์ง€ ์•Š๊ฒŒ ์„œ๋น„์Šค๋กœ ์ƒˆ์–ด๋‚˜๊ฐ„๊ฑฐ๋กœ ๋ณผ ์ˆ˜ ์žˆ๊ฒ ๋„ค์š”

๊ทธ๋Ÿฌ๋ฉด Reservation์— withUpdated(date, newTime, now)์™€ validateCancellable(now) ๊ฐ™์€ ๋ฉ”์„œ๋“œ๋ฅผ ์ถ”๊ฐ€ํ•ด์„œ ๊ณผ๊ฑฐ ๋‚ ์งœ ๊ฒ€์ฆ์„ ๋„๋ฉ”์ธ์œผ๋กœ ์ด๋™ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.
์ถฉ๋Œ ์ฒดํฌ๋Š” DB ์กฐํšŒ๊ฐ€ ํ•„์š”ํ•˜๋‹ˆ ์„œ๋น„์Šค์— ์œ ์ง€ํ•˜๊ณ , ๋‚˜๋จธ์ง€ ์„œ๋น„์Šค๋Š” ์ˆœ์ˆ˜ ์˜ค์ผ€์ŠคํŠธ๋ ˆ์ด์…˜๋งŒ ๋‹ด๋‹นํ•˜๋Š” ๋ฐฉํ–ฅ์œผ๋กœ ์ˆ˜์ •ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.

์•ฝ๊ฐ„ ๊ตณ์ด ํ•œ ๊ณ„์ธต ๋” ๋“ค์–ด๊ฐ€๋Š” ๋А๋‚Œ์ด๋ผ ์ด๋ ‡๊ฒŒ ํ•˜์ง€ ์•Š์•˜์—ˆ๋Š”๋ฐ, ์ฑ…์ž„ ๋ถ„๋ฆฌ์™€ ์ค‘๋ณต ์ฝ”๋“œ ์ œ๊ฑฐ์˜ ๊ด€์ ์—์„œ ์ƒ๊ฐํ•ด๋ณด๋‹ˆ ์ด๊ฒŒ ๋” ์ข‹๊ฒŒ ๋А๊ปด์ง€๋Š” ๊ฒƒ ๊ฐ™๋„ค์š”

Comment on lines +51 to +53
if (reservationDao.existsByDateAndTimeIdAndThemeId(date, timeId, reservation.getTheme().getId())) {
throw new ReservationConflictException("์ด๋ฏธ ์˜ˆ์•ฝ๋œ ์‹œ๊ฐ„์ž…๋‹ˆ๋‹ค.");
}
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(์ด์ „ ์ฝ”๋ฉ˜ํŠธ์™€ ๋ฐ”๋กœ ์œ„ ์ฝ”๋ฉ˜ํŠธ๋กœ๋ถ€ํ„ฐ ์ด์–ด์ง‘๋‹ˆ๋‹ค!)

  • ๋งŒ์•ฝ ์ด๋ฒˆ ๋ฏธ์…˜์ด ๋ธ”๋ž™์žญ๊ณผ ๊ฐ™์€ ์ฝ˜์†” ๊ธฐ๋ฐ˜์˜ ๊ฐ์ฒด์ง€ํ–ฅ ๋ฏธ์…˜์ด์—ˆ๋‹ค๋ฉด, ๊ทธ๋ฆฌ๊ณ  DB ์—ฐ๊ฒฐ ๋˜ํ•œ ์—†์—ˆ๋”๋ผ๋ฉด ๊ฐ์ฒด ์„ค๊ณ„๋ฅผ ์–ด๋–ป๊ฒŒ ์ง„ํ–‰ํ•˜์…จ์„ ๊ฒƒ ๊ฐ™๋‚˜์š”?
  • ์˜ˆ๋ฅผ ๋“ค์–ด๋ณด์ž๋ฉด, ์ค‘๋ณต ์˜ˆ์•ฝ์— ๋Œ€ํ•œ ๊ฒ€์ฆ์„ ์œ„ํ•ด ํ…Œ๋งˆ์˜ ํ•˜๋ฃจ ์˜ˆ์•ฝ์„ ๊ด€๋ฆฌํ•˜๋Š” ์ผ๊ธ‰ ์ปฌ๋ ‰์…˜์ด ๋“ฑ์žฅํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
  • Dao์˜ ์ƒํ˜ธ์ž‘์šฉ์€ DB๋ผ๋Š” ์ €์ˆ˜์ค€์— ์ข…์†๋˜๋Š” ๋А๋‚Œ์ด ๋“ญ๋‹ˆ๋‹ค. ํ…Œ์ด๋ธ”์˜ ์–ธ์–ด๋กœ ์ƒํ˜ธ์ž‘์šฉํ•˜๋Š” ๊ฒƒ์ฒ˜๋Ÿผ ๋ณด์ด์ฃ . ์˜๊ธฐ๊ฐ€ Repository์™€ Dao๋ฅผ ๊ตฌ๋ถ„ํ•ด์ฃผ์‹  ๋งŒํผ Repository์—์„œ๋Š” ํ•ด๋‹น ๋„๋ฉ”์ธ์„ ์˜์†ํ™”ํ•˜๋Š” ๊ณผ์ •์ด ๋‹ด๊ธธ ์ˆ˜ ์žˆ์–ด์š”. ๊ทธ๋ ‡๋‹ค๋ฉด ์„œ๋น„์Šค์—์„œ๋Š” ํ•ด๋‹น ์ผ๊ธ‰ ์ปฌ๋ ‰์…˜์œผ๋กœ ์†Œํ†ตํ•˜๊ณ , ์ €์žฅํ•˜๋Š” ์ผ๋ จ์˜ ๊ณผ์ •์„ ๋งŒ๋“ค์–ด๋‚ผ ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋ฅผ ์ €์žฅํ•˜๊ธฐ ์œ„ํ•ด์„œ DB ์ปฌ๋Ÿผ์„ ์ผ์น˜์‹œํ‚ฌ ์ˆ˜๋„ ์žˆ์ง€๋งŒ, ์„ฑ๋Šฅ์ƒ ์ด๋ฅผ ํฌ๊ธฐํ•˜๋Š” ๊ฒฝ์šฐ๋„ ์žˆ๊ณ ์š”. (์ด ๊ฒฝ์šฐ ๋งคํ•‘์˜ ์ฑ…์ž„์„ ๊ณ ๋ฏผํ•ด๋ณด๋Š” ๊ฒƒ๋„ ์ข‹์€ ๊ณต๋ถ€๊ฐ€ ๋ฉ๋‹ˆ๋‹ค)

๋ฌผ๋ก  ๊ตฌํ˜„ํ•ด์ฃผ์‹  ๋ฐฉํ–ฅ๋„ ์š”๊ตฌ์‚ฌํ•ญ์„ ์ถฉ๋ถ„ํžˆ ๋งŒ์กฑํ•˜์ง€๋งŒ, ๋„๋ฉ”์ธ์„ ํƒ๊ตฌํ•˜๊ณ  ๊ฐ์ฒด์˜ ์ฑ…์ž„์„ ๋„์ถœํ•ด๋‚ด๋Š” ๊ณผ์ •์œผ๋กœ๋ถ€ํ„ฐ ์„ค๊ณ„๊ฐ€ ์ง„ํ–‰๋œ๋‹ค๋ฉด ๋” ๋‹จ๋‹จํ•œ ์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ด์š”! ๋ฐ˜์˜ํ•˜์‹œ์ง€ ์•Š์•„๋„ ๋˜๊ณ  ํ•˜๋‚˜์˜ ๊ด€์ ์œผ๋กœ ๋ฐ”๋ผ๋ด์ฃผ์…จ์œผ๋ฉด ์ข‹๊ฒ ์Šต๋‹ˆ๋‹ค ๐Ÿ™‚

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"๋„๋ฉ”์ธ์„ ๋จผ์ € ํƒ๊ตฌํ•˜๊ณ  ๊ฐ์ฒด์˜ ์ฑ…์ž„์„ ๋„์ถœํ•œ ๋’ค ์„ค๊ณ„"๋ผ๋Š” ๋ง์”€์ด ์ƒ๊ฐ์˜ ์—ฌ์ง€๋ฅผ ๋งŽ์ด ๋˜์ ธ์ฃผ๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค...!
์ƒ๊ฐํ•ด๋ณด๋‹ˆ DB ๊ตฌ์กฐ๊ฐ€ ๋„๋ฉ”์ธ ์„ค๊ณ„๋ฅผ ์ฃผ๋„ํ•˜๊ณ  ์žˆ์—ˆ๋˜ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

DB ์—†์ด ์„ค๊ณ„ํ•œ๋‹ค๋ฉด ThemeDaySchedule ๊ฐ™์€ ์ผ๊ธ‰ ์ปฌ๋ ‰์…˜์ด ์ค‘๋ณต ์˜ˆ์•ฝ ๊ฒ€์ฆ์˜ ์ฑ…์ž„์„ ๊ฐ€์ ธ๊ฐˆ ์ˆ˜ ์žˆ๊ฒ ๋„ค์š”.
ํ˜„์žฌ๋Š” DB ์กฐํšŒ(existsByDateAndTimeIdAndThemeId)๊ฐ€ ๊ทธ ์—ญํ• ์„ ๋Œ€์‹ ํ•˜๋‹ค ๋ณด๋‹ˆ ๋„๋ฉ”์ธ์ด ์–‡์•„์ง„ ์ƒํ™ฉ์ด์—ˆ์Šต๋‹ˆ๋‹ค.

Repository๊ฐ€ ๋„๋ฉ”์ธ ๊ฐ์ฒด์™€ DB ์ปฌ๋Ÿผ ์‚ฌ์ด์˜ ๋งคํ•‘์„ ๋‹ด๋‹นํ•˜๊ณ , Service๋Š” ์ผ๊ธ‰ ์ปฌ๋ ‰์…˜๊ณผ ๋„๋ฉ”์ธ ์–ธ์–ด๋กœ ์†Œํ†ตํ•˜๋Š” ๊ตฌ์กฐ๊ฐ€ ๋” ๋‹จ๋‹จํ•œ ์„ค๊ณ„์ž„์„ ์ดํ•ดํ–ˆ์Šต๋‹ˆ๋‹ค!

@RestControllerAdvice
public class GlobalExceptionHandler {

@ExceptionHandler(IllegalArgumentException.class)
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IllegalArgumentException์„ 400์œผ๋กœ ์ฒ˜๋ฆฌํ•˜๊ณ , e.getMessage()๋ฅผ ๋…ธ์ถœํ•ด๋„ ๊ดœ์ฐฎ์„๊นŒ์š”? IllegalArgumentException์ด ์˜๋„์น˜ ์•Š์€ ๋‹ค๋ฅธ ๊ณณ์—์„œ ๋ฐœ์ƒํ•  ์œ„ํ—˜์€ ์—†์„๊นŒ์š”?

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IllegalArgumentException์„ ๊ด‘๋ฒ”์œ„ํ•˜๊ฒŒ ์žก์œผ๋ฉด ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ๋‚˜ ํ”„๋ ˆ์ž„์›Œํฌ ๋‚ด๋ถ€์—์„œ ๋ฐœ์ƒํ•œ ์˜ˆ์™ธ๊นŒ์ง€ 400์œผ๋กœ ์ฒ˜๋ฆฌ๋˜๊ณ  ๋‚ด๋ถ€ ๋ฉ”์‹œ์ง€๊ฐ€ ๋…ธ์ถœ๋  ์œ„ํ—˜์ด ์žˆ๊ฒ ๋„ค์š”.
๋„๋ฉ”์ธ ์ „์šฉ ์ปค์Šคํ…€ ์˜ˆ์™ธ(InvalidInputException ๋“ฑ)๋ฅผ ๋งŒ๋“ค์–ด์„œ ์šฐ๋ฆฌ ์ฝ”๋“œ์—์„œ ์˜๋„์ ์œผ๋กœ ๋˜์ง€๋Š” ๊ฒฝ์šฐ๋งŒ ์žก๋„๋ก ๋ถ„๋ฆฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค!

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dto ํด๋ž˜์Šค๊ฐ€ ๋งŽ์•„์ง€๋ฉด์„œ ๋‹ด๊ณ ์žˆ๋Š” ๋‚ด์šฉ์ด ์ปค์ง€๊ณ  ์žˆ๋„ค์š”. ํŒจํ‚ค์ง€๋ฅผ ์ ์ ˆํ•˜๊ฒŒ ๋‚˜๋ˆ ๋ณด๋ฉด ์–ด๋–จ๊นŒ์š”?

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ํ˜„์žฌ controller.dto ํ•˜๋‚˜์— Reservation, Theme, ReservationTime ๊ด€๋ จ DTO๊ฐ€ 15๊ฐœ ๋ชจ์—ฌ์žˆ๋Š” ์ƒํ™ฉ์ด๋ผ ๋„๋ฉ”์ธ๋ณ„ ์„œ๋ธŒ ํŒจํ‚ค์ง€๋กœ ๋ถ„๋ฆฌํ•˜๋Š” ๋ฐฉํ–ฅ์ด ์ ํ•ฉํ•˜๋‹ค๊ณ  ์ƒ๊ฐํ–ˆ์Šต๋‹ˆ๋‹ค.
controller/dto/reservation/, controller/dto/time/, controller/dto/theme/ ํ˜•ํƒœ๋กœ ๋‚˜๋ˆ„๋ฉด ๊ฐ ๋„๋ฉ”์ธ๋ณ„๋กœ Request/Response๋ฅผ ํ•œ ๋ˆˆ์— ๋ณผ ์ˆ˜ ์žˆ๊ณ , ๊ธฐ์กด domain/ ํŒจํ‚ค์ง€ ๊ตฌ๋ถ„ ๊ธฐ์ค€๊ณผ๋„ ์ผ๊ด€์„ฑ์„ ์œ ์ง€ํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
ํ˜น์‹œ ์ƒ๊ฐํ•˜์‹  ๋‹ค๋ฅธ ๊ธฐ์ค€์ด ์žˆ์œผ์‹œ๋ฉด ๋ง์”€ํ•ด ์ฃผ์‹œ๋ฉด ๋ฐ˜์˜ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.

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ํ•œ ๊ฐ€์ง€ ๊ฑธ๋ฆฌ๋Š” ์ ์€, ํ˜„์žฌ ํ”„๋กœ์ ํŠธ ๊ตฌ์กฐ๋ฅผ ๋ณด๋ฉด:

roomescape/
  controller/   โ† ๊ณ„์ธต
  dao/          โ† ๊ณ„์ธต
  domain/       โ† ๊ณ„์ธต
  exception/    โ† ๊ณ„์ธต
  service/      โ† ๊ณ„์ธต

์ „์ฒด๊ฐ€ ๊ณ„์ธต ๊ธฐ๋ฐ˜(horizontal slicing) ์œผ๋กœ ๋‚˜๋‰˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.
์—ฌ๊ธฐ์„œ dto/ ์•ˆ์—์„œ๋งŒ ๋„๋ฉ”์ธ ๊ธฐ์ค€์„ ์„ž์œผ๋ฉด ์ผ๊ด€์„ฑ์ด ๊นจ์ง‘๋‹ˆ๋‹ค.
dao/๋‚˜ service/๋Š” ๋„๋ฉ”์ธ sub-package ์—†์ด flatํ•œ๋ฐ dto/๋งŒ domain-based๊ฐ€ ๋ฉ๋‹ˆ๋‹ค.

๊ทธ๋ž˜์„œ, ํ˜„์žฌ์˜ ์ฒ ํ•™์„ ๋”ฐ๋ฅด๋ ค๋ฉด Request / Response ๋ถ„๋ฆฌํ•˜๋Š”๊ฒŒ ๋งž์•„ ๋ณด์ด๋Š”๋ฐ,

controller/dto/
  request/   โ† ์ž…๋ ฅ
  response/  โ† ์ถœ๋ ฅ

์•„๋ฃจ๋Š” dto/ ์ด ์•„๋ž˜์— ๋„๋ฉ”์ธ๋ณ„๋กœ ํŒจํ‚ค์ง€๋ฅผ ๋‚˜๋ˆ„๋Š” ๊ฒƒ๊ณผ, ์œ„์—์„œ ๋งํ•œ ๊ฒƒ ์ค‘์— ์–ด๋А๊ฒŒ ๋” ๊ดœ์ฐฎ์€ ๋ฐฉ๋ฒ•์ด๋ผ๊ณ  ๋ณด์‹œ๋‚˜์š”?

Comment on lines 3 to 5
id BIGINT NOT NULL AUTO_INCREMENT,
start_at TIME NOT NULL UNIQUE,
PRIMARY KEY (id)
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์—ฌ๋Ÿฌ start_time์ด DB์ƒ์œผ๋กœ ์กด์žฌํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™๋„ค์š”.

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๋ฐฉ์ด ํ•˜๋‚˜์ธ ๋ฐฉํƒˆ์ถœ ์นดํŽ˜ ๋งฅ๋ฝ์ด๋ผ๋ฉด UNIQUE (date, time_id)๋กœ ๋ณ€๊ฒฝํ•ด์•ผ ์‹œ๊ฐ„๋‹น ํ•œ ํŒ€๋งŒ ์˜ˆ์•ฝ์ด ๊ฐ€๋Šฅํ•ด์งˆ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
์„œ๋น„์Šค์˜ ์ค‘๋ณต ์ฒดํฌ ๋กœ์ง๋„ ํ•จ๊ป˜ ์ˆ˜์ •ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค

Comment thread README.md
### ์—๋Ÿฌ ์‘๋‹ต ํ˜•์‹

```json
{ "code": "RESERVATION_CONFLICT", "message": "์ด๋ฏธ ์˜ˆ์•ฝ๋œ ์‹œ๊ฐ„์ž…๋‹ˆ๋‹ค." }
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code๊ฐ€ ํ•„์š”ํ•œ ์ด์œ ๋Š” ๋ฌด์—‡์ธ๊ฐ€์š”? ์‹ค์ œ๋กœ ํ”„๋ก ํŠธ์—์„œ ํ•ด๋‹น code๋ฅผ ๋ณด๊ณ  ๋ถ„๊ธฐ๊ฐ€ ์ด๋ค„์ง€๋‚˜์š”? ์„œ๋ฒ„์—์„œ ๋ถˆํ•„์š”ํ•œ ์ •๋ณด๋ฅผ ๋‚ด๋ ค์ฃผ๊ณ  ์žˆ๋Š” ๊ฒƒ์€ ์•„๋‹๊นŒ์š”?

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user.html์—์„œ code ํ•„๋“œ๋ฅผ ์‹ค์ œ๋กœ ๋ถ„๊ธฐ์— ์‚ฌ์šฉํ•˜๊ณ  ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
์ทจ์†Œยท๋ณ€๊ฒฝ API ์‘๋‹ต์—์„œ PAST_RESERVATION๊ณผ RESERVATION_CONFLICT๋ฅผ ๊ตฌ๋ถ„ํ•ด ๊ฐ๊ฐ ๋‹ค๋ฅธ ์•ˆ๋‚ด ๋ฉ”์‹œ์ง€๋ฅผ ํ‘œ์‹œํ•˜๋Š” ์šฉ๋„์ž…๋‹ˆ๋‹ค.

๋‹ค๋งŒ ํ”„๋ก ํŠธ๊ฐ€ code์— ์˜์กดํ•˜๋Š” ๋Œ€์‹  HTTP ์ƒํƒœ ์ฝ”๋“œ(422, 409)๋งŒ์œผ๋กœ ๋ถ„๊ธฐํ•  ์ˆ˜ ์žˆ๋„๋ก ๋ฆฌํŒฉํ† ๋งํ•˜๋Š” ๊ฒƒ๋„ ๊ฐ€๋Šฅํ•˜๊ณ , ๊ทธ๋ ‡๋‹ค๋ฉด code ํ•„๋“œ๋Š” ์ œ๊ฑฐํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
ํ˜„์žฌ ๊ตฌ์กฐ๋ฅผ ์œ ์ง€ํ• ์ง€ ์˜๊ฒฌ ์ฃผ์‹œ๋ฉด ๋ฐ˜์˜ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค!

Comment on lines +59 to +62
Reservation reservation = reservationDao.findById(id)
.orElseThrow(() -> new IllegalArgumentException("์กด์žฌํ•˜์ง€ ์•Š๋Š” ์˜ˆ์•ฝ์ž…๋‹ˆ๋‹ค."));
if (LocalDateTime.of(reservation.getDate(), reservation.getTime().getStartAt()).isBefore(LocalDateTime.now())) {
throw new PastReservationException("์ด๋ฏธ ์ง€๋‚œ ์˜ˆ์•ฝ์€ ์ทจ์†Œํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.");
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์–ด๋–ค ๊ฒฝ์šฐ์— ๊ธฐ๋ณธ ์˜ˆ์™ธ๋ฅผ ์‚ฌ์šฉํ•˜๊ณ , ์–ด๋–ค ๊ฒฝ์šฐ์—๋Š” ๋งŒ๋“ค์–ด์ฃผ์‹  ์ปค์Šคํ…€ ์˜ˆ์™ธ๋ฅผ ์‚ฌ์šฉํ•˜์…จ๋‚˜์š”?

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๋Œ์•„๋ณด๋‹ˆ ๋ช…ํ™•ํ•œ ๊ธฐ์ค€ ์—†์ด, HTTP ์ƒํƒœ ์ฝ”๋“œ๊ฐ€ 400์ด ์•„๋‹ ๋•Œ๋งŒ ์ปค์Šคํ…€ ์˜ˆ์™ธ๋ฅผ ๋งŒ๋“œ๋Š” ํŒจํ„ด์ด์—ˆ์Šต๋‹ˆ๋‹ค.
์˜๋„ํ•œ ์„ค๊ณ„๊ฐ€ ์•„๋‹ˆ์—ˆ์Šต๋‹ˆ๋‹ค.

๋” ๋‚˜์€ ๊ธฐ์ค€์€ "๋„๋ฉ”์ธ ๊ทœ์น™ ์œ„๋ฐ˜์€ ๋ชจ๋‘ ์ปค์Šคํ…€ ์˜ˆ์™ธ, IllegalArgumentException์€ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์˜ค๋ฅ˜์—๋งŒ"์ด๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.
"์กด์žฌํ•˜์ง€ ์•Š๋Š” ์˜ˆ์•ฝ์ž…๋‹ˆ๋‹ค" ๊ฐ™์€ ์ผ€์ด์Šค๋„ ReservationNotFoundException ๊ฐ™์€ ๋„๋ฉ”์ธ ์˜ˆ์™ธ๋กœ ํ‘œํ˜„ํ•˜๋Š” ๊ฒŒ ๋งž๊ณ , IllegalArgumentException์€ ์˜ˆ์ƒ์น˜ ๋ชปํ•œ ์ƒํ™ฉ์—๋งŒ ๋‚จ๊ฒจ๋‘๋Š” ๋ฐฉํ–ฅ์œผ๋กœ ์ •๋ฆฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.

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