refactor: User 관련 엔티티 제거 로직 변경 (CASCADE -> @Modifying 기반 delete 쿼리)

Author: daeun084

src/main/kotlin/gat_be/dev/domain/auth/controller/AuthController.kt

@@ -4,6 +4,7 @@ import ApiResponse
 import gat_be.dev.common.status.SuccessStatus
 import gat_be.dev.domain.auth.dto.request.*
 import gat_be.dev.domain.auth.dto.response.*
+import gat_be.dev.domain.auth.facade.UserWithdrawalFacade
 import gat_be.dev.domain.auth.service.AuthService
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.media.Content
@@ -18,7 +19,8 @@ import org.springframework.web.bind.annotation.*
 @RequestMapping("/auth")
 @Tag(name = "Auth")
 class AuthController(
-    private val authService: AuthService
+    private val authService: AuthService,
+    private val userWithdrawalFacade: UserWithdrawalFacade
 ) {
 
     @PostMapping("/signup")
@@ -63,7 +65,7 @@ class AuthController(
     fun withdraw(
         @AuthenticationPrincipal userId: Long
     ): ResponseEntity<ApiResponse<Nothing>> {
-        authService.withdraw(userId)
+        userWithdrawalFacade.withdraw(userId)
         return ApiResponse.success(SuccessStatus.DELETE_USER_SUCCESS)
     }
 

src/main/kotlin/gat_be/dev/domain/auth/facade/UserWithdrawalFacade.kt

@@ -0,0 +1,22 @@
+package gat_be.dev.domain.auth.facade
+
+import gat_be.dev.domain.application.service.ApplicationService
+import gat_be.dev.domain.team.service.TeamService
+import gat_be.dev.domain.user.service.UserService
+import jakarta.transaction.Transactional
+import org.springframework.stereotype.Service
+
+@Service
+class UserWithdrawalFacade(
+    private val applicationService: ApplicationService,
+    private val userService: UserService,
+    private val teamService: TeamService,
+) {
+
+    // 회원 탈퇴
+    @Transactional
+    fun withdraw(userId: Long) {
+        userService.withdrawUser(userId)
+    }
+
+}

src/main/kotlin/gat_be/dev/domain/auth/service/AuthService.kt

@@ -56,13 +56,6 @@ class AuthService(
         userService.clearRefreshToken(user)
     }
 
-    // 회원탈퇴
-    @Transactional
-    fun withdraw(userId: Long) {
-        val user = userService.findUserByUserId(userId)
-        userService.withdrawUser(user)
-    }
-
     // 아이디 중복 확인
     fun checkId(loginId: String): CheckIdResponse {
         return userService.checkId(loginId)

src/main/kotlin/gat_be/dev/domain/user/repository/UserRepository.kt

@@ -2,6 +2,9 @@ package gat_be.dev.domain.user.repository
 
 import gat_be.dev.domain.user.entity.User
 import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.data.jpa.repository.Modifying
+import org.springframework.data.jpa.repository.Query
+import org.springframework.data.repository.query.Param
 
 interface UserRepository: JpaRepository<User, Long> {
     fun findByUserId(userId: Long): User?
@@ -11,4 +14,13 @@ interface UserRepository: JpaRepository<User, Long> {
     fun existsByEmail(email:String):Boolean
     fun findByEmail(email:String):User?
     fun findByRefreshToken(refreshToken:String):User?
+
+    @Modifying
+    @Query("""
+       DELETE FROM User u
+        WHERE u.userId = :userId
+    """
+    )
+    fun deleteByUserId(@Param("userId") userId: Long)
+
 }

src/main/kotlin/gat_be/dev/domain/user/repository/UserScrappedTeamRepository.kt

@@ -3,7 +3,19 @@ package gat_be.dev.domain.user.repository
 import gat_be.dev.domain.user.entity.User
 import gat_be.dev.domain.user.entity.UserScrappedTeam
 import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.data.jpa.repository.Modifying
+import org.springframework.data.jpa.repository.Query
+import org.springframework.data.repository.query.Param
 
 interface UserScrappedTeamRepository: JpaRepository<UserScrappedTeam, Long> {
     fun countByUser(user: User): Long
+
+    @Modifying
+    @Query("""
+       DELETE FROM UserScrappedTeam ust
+        WHERE ust.user.userId = :userId
+    """
+    )
+    fun deleteAllByUserId(@Param("userId") userId: Long)
+
 }

src/main/kotlin/gat_be/dev/domain/user/repository/UserTechStackRepository.kt

@@ -12,7 +12,13 @@ interface UserTechStackRepository: JpaRepository<UserTechStack, Long> {
 
     fun findAllByUserOrderByLevelDescNameAsc(user:User): List<UserTechStack>
 
-    fun deleteAllByUser(user: User)
+    @Modifying
+    @Query("""
+       DELETE FROM UserTechStack uts
+        WHERE uts.user.userId = :userId
+    """
+    )
+    fun deleteAllByUserId(@Param("userId") userId: Long)
 
     @Modifying
     @Query("""

src/main/kotlin/gat_be/dev/domain/user/repository/UserViewedTeamHistoryRepository.kt

@@ -3,7 +3,19 @@ package gat_be.dev.domain.user.repository
 import gat_be.dev.domain.user.entity.User
 import gat_be.dev.domain.user.entity.UserViewedTeamHistory
 import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.data.jpa.repository.Modifying
+import org.springframework.data.jpa.repository.Query
+import org.springframework.data.repository.query.Param
 
 interface UserViewedTeamHistoryRepository: JpaRepository<UserViewedTeamHistory, Long> {
     fun countByUser(user:User):Long
+
+    @Modifying
+    @Query("""
+       DELETE FROM UserViewedTeamHistory uvt
+        WHERE uvt.user.userId = :userId
+    """
+    )
+    fun deleteAllByUserId(@Param("userId") userId: Long)
+
 }

src/main/kotlin/gat_be/dev/domain/user/service/UserScrappedTeamService.kt

@@ -8,7 +8,7 @@ import org.springframework.stereotype.Service
 
 @Service
 class UserScrappedTeamService(
-    private val userScrappedTeamRepository: UserScrappedTeamRepository,
+    private val userScrappedTeamRepository: UserScrappedTeamRepository
 ) {
 
     // 유저의 스크랩 수 조회
@@ -24,4 +24,10 @@ class UserScrappedTeamService(
         )
         userScrappedTeamRepository.save(userScrappedTeam)
     }
+
+    // 유저의 스크랩 내역 전체 삭제
+    fun deleteAllByUserId(userId: Long) {
+        userScrappedTeamRepository.deleteAllByUserId(userId)
+    }
+
 }

src/main/kotlin/gat_be/dev/domain/user/service/UserService.kt

@@ -15,7 +15,8 @@ import org.springframework.transaction.annotation.Transactional
 class UserService(
     private val userTechStackService: UserTechStackService,
     private val userRepository: UserRepository,
-    private val userScrappedTeamService: UserScrappedTeamService
+    private val userScrappedTeamService: UserScrappedTeamService,
+    private val userViewedTeamHistoryService: UserViewedTeamHistoryService
 ) {
 
     // 유저 프로필 수정
@@ -45,9 +46,11 @@ class UserService(
     }
 
     // 회원탈퇴
-    fun withdrawUser(user: User) {
-        userTechStackService.deleteAllByUser(user)
-        userRepository.delete(user)
+    fun withdrawUser(userId: Long) {
+        userScrappedTeamService.deleteAllByUserId(userId)
+        userViewedTeamHistoryService.deleteAllByUserId(userId)
+        userTechStackService.deleteAllByUserId(userId)
+        userRepository.deleteByUserId(userId)
     }
 
     // 아이디 중복 확인

src/main/kotlin/gat_be/dev/domain/user/service/UserTechStackService.kt

@@ -51,7 +51,7 @@ class UserTechStackService(
     }
 
     // 유저의 기술 스택 삭제
-    fun deleteAllByUser(user: User) {
-        userTechStackRepository.deleteAllByUser(user)
+    fun deleteAllByUserId(userId: Long) {
+        userTechStackRepository.deleteAllByUserId(userId)
     }
 }