[프로필] [팔로우] 팔로워, 팔로잉 프로필 조회 기능 개발

.github/pull_request_template.md

@@ -0,0 +1,6 @@
+# 관련 이슈
+
+# 변경 사항
+1. 
+
+# 참고 사항

sns_service/src/main/kotlin/joryu/sns_service/follow/controller/FollowController.kt

@@ -0,0 +1,28 @@
+package joryu.sns_service.follow.controller
+
+import joryu.sns_service.follow.dto.request.FollowRequest
+import joryu.sns_service.follow.dto.request.UnFollowRequest
+import joryu.sns_service.follow.service.FollowService
+import lombok.RequiredArgsConstructor
+import org.springframework.http.ResponseEntity
+import org.springframework.stereotype.Controller
+import org.springframework.web.bind.annotation.*
+
+@Controller
+@RequestMapping("/follow")
+@RequiredArgsConstructor
+class FollowController(
+        private val followService: FollowService
+) {
+    @PostMapping("/{fromProfileId}")
+    fun follow(@PathVariable("fromProfileId") fromProfileId: Long, @RequestBody followRequest: FollowRequest): ResponseEntity<Void> {
+        followService.follow(fromProfileId, followRequest.toProfileId)
+        return ResponseEntity.ok().build()
+    }
+
+    @DeleteMapping("/{fromProfileId}")
+    fun unFollow(@PathVariable("fromProfileId") fromProfileId: Long, @RequestBody unFollowRequest: UnFollowRequest): ResponseEntity<Void> {
+        followService.unFollow(fromProfileId, unFollowRequest.toProfileId)
+        return ResponseEntity.ok().build()
+    }
+}

sns_service/src/main/kotlin/joryu/sns_service/follow/dto/request/FollowRequest.kt

@@ -0,0 +1,4 @@
+package joryu.sns_service.follow.dto.request
+
+data class FollowRequest(val toProfileId: Long) {
+}

sns_service/src/main/kotlin/joryu/sns_service/follow/dto/request/UnFollowRequest.kt

@@ -0,0 +1,4 @@
+package joryu.sns_service.follow.dto.request
+
+data class UnFollowRequest(val toProfileId: Long) {
+}

sns_service/src/main/kotlin/joryu/sns_service/follow/entity/Follow.kt

@@ -0,0 +1,28 @@
+package joryu.sns_service.follow.entity
+
+import jakarta.persistence.*
+import joryu.sns_service.common.entity.BaseEntity
+import joryu.sns_service.profile.entity.Profile
+
+@Table(name = "follow")
+@Entity
+data class Follow(
+        @Id
+        @Column(name = "follow_id")
+        @GeneratedValue(strategy = GenerationType.IDENTITY)
+        val id: Long?,
+
+        @ManyToOne
+        @JoinColumn
+        val fromProfile: Profile?,
+
+        @ManyToOne
+        @JoinColumn
+        val toProfile: Profile?
+) : BaseEntity() {
+    constructor() : this(null, null, null)
+    constructor(fromProfile: Profile, toProfile: Profile) : this(null, fromProfile, toProfile) {
+        toProfile.addFollower(this)
+        fromProfile.addFollowing(this)
+    }
+}

sns_service/src/main/kotlin/joryu/sns_service/follow/repository/FollowRepository.kt

@@ -0,0 +1,11 @@
+package joryu.sns_service.follow.repository
+
+import joryu.sns_service.follow.entity.Follow
+import joryu.sns_service.profile.entity.Profile
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface FollowRepository : JpaRepository<Follow, Long> {
+    fun deleteByFromProfileAndToProfile(fromProfile: Profile, toProfile: Profile)
+    fun findAllByToProfile(toProfile: Profile): MutableList<Follow>
+    fun findAllByFromProfile(fromProfile: Profile): MutableList<Follow>
+}

sns_service/src/main/kotlin/joryu/sns_service/follow/service/FollowService.kt

@@ -0,0 +1,37 @@
+package joryu.sns_service.follow.service
+
+import joryu.sns_service.follow.entity.Follow
+import joryu.sns_service.follow.repository.FollowRepository
+import joryu.sns_service.profile.exception.ProfileBaseException
+import joryu.sns_service.profile.exception.ProfileExceptionEnums
+import joryu.sns_service.profile.repository.ProfileRepository
+import lombok.RequiredArgsConstructor
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+@RequiredArgsConstructor
+class FollowService(
+        private val followRepository: FollowRepository,
+        private val profileRepository: ProfileRepository
+) {
+
+    @Transactional
+    fun follow(fromProfileId: Long, toProfileId: Long) {
+        val fromProfile = profileRepository.findById(fromProfileId)
+                .orElseThrow { ProfileBaseException(ProfileExceptionEnums.PROFILE_NOT_FOUND) }
+        val toProfile = profileRepository.findById(toProfileId)
+                .orElseThrow { ProfileBaseException(ProfileExceptionEnums.PROFILE_NOT_FOUND) }
+        val follow = Follow(fromProfile, toProfile)
+        followRepository.save(follow)
+    }
+
+    @Transactional
+    fun unFollow(fromProfileId: Long, toProfileId: Long) {
+        val fromProfile = profileRepository.findById(fromProfileId)
+                .orElseThrow { ProfileBaseException(ProfileExceptionEnums.PROFILE_NOT_FOUND) }
+        val toProfile = profileRepository.findById(toProfileId)
+                .orElseThrow { ProfileBaseException(ProfileExceptionEnums.PROFILE_NOT_FOUND) }
+        followRepository.deleteByFromProfileAndToProfile(fromProfile, toProfile)
+    }
+}

sns_service/src/main/kotlin/joryu/sns_service/profile/controller/ProfileApiController.kt

@@ -2,6 +2,7 @@ package joryu.sns_service.profile.controller
 
 import joryu.sns_service.profile.dto.request.ProfileCreateRequest
 import joryu.sns_service.profile.dto.request.ProfileUpdateRequest
+import joryu.sns_service.profile.dto.response.AllProfileResponse
 import joryu.sns_service.profile.dto.response.ProfileInfoResponse
 import joryu.sns_service.profile.entity.Profile
 import joryu.sns_service.profile.service.ProfileService
@@ -19,26 +20,38 @@ class ProfileApiController(
 ) {
 
     @PostMapping()
-    fun createProfile(@RequestBody profileCreateRequest: ProfileCreateRequest): ResponseEntity<Profile> {
-        val profile = profileService.create(profileCreateRequest)
-        return ResponseEntity(profile, HttpStatus.OK)
+    fun createProfile(@RequestBody profileCreateRequest: ProfileCreateRequest): ResponseEntity<ProfileInfoResponse> {
+        val profileInfo = profileService.create(profileCreateRequest)
+        return ResponseEntity(profileInfo, HttpStatus.OK)
     }
 
     @GetMapping("/{id}")
     fun findProfile(@PathVariable id: Long): ResponseEntity<ProfileInfoResponse> {
-        val profile = profileService.findOneById(id)
-        return ResponseEntity(profile, HttpStatus.OK)
+        val profileInfo = profileService.findOneById(id)
+        return ResponseEntity(profileInfo, HttpStatus.OK)
     }
 
     @PutMapping("/{id}")
     fun updateProfile(@PathVariable id: Long, @RequestBody profileUpdateRequest: ProfileUpdateRequest): ResponseEntity<ProfileInfoResponse> {
-        val profile = profileService.update(id, profileUpdateRequest)
-        return ResponseEntity(profile, HttpStatus.OK)
+        val profileInfo = profileService.update(id, profileUpdateRequest)
+        return ResponseEntity(profileInfo, HttpStatus.OK)
     }
 
     @DeleteMapping("/{id}")
     fun deleteProfile(@PathVariable id: Long): ResponseEntity<Any> {
         profileService.delete(id)
         return ResponseEntity.ok().build()
     }
+
+    @GetMapping("/follower/{id}")
+    fun findAllFollowerProfiles(@PathVariable id: Long): ResponseEntity<AllProfileResponse> {
+        val profiles = profileService.findAllFollowerProfileInfo(id)
+        return ResponseEntity(profiles, HttpStatus.OK)
+    }
+
+    @GetMapping("/following/{id}")
+    fun findAllFollowingProfiles(@PathVariable id: Long): ResponseEntity<AllProfileResponse> {
+        val profiles = profileService.findAllFollowingProfileInfo(id)
+        return ResponseEntity(profiles, HttpStatus.OK)
+    }
 }

sns_service/src/main/kotlin/joryu/sns_service/profile/dto/response/AllFollowerProfileResponse.kt

@@ -0,0 +1,13 @@
+package joryu.sns_service.profile.dto.response
+
+import joryu.sns_service.profile.entity.Profile
+
+data class AllProfileResponse(
+        val profileInfo: MutableList<ProfileInfoResponse> = mutableListOf()
+) {
+
+    fun addProfileInfoInFollows(profiles: List<Profile?>): AllProfileResponse {
+        profiles.forEach { profile -> profileInfo.add(ProfileInfoResponse(profile)) }
+        return this
+    }
+}

sns_service/src/main/kotlin/joryu/sns_service/profile/dto/response/ProfileInfoResponse.kt

@@ -2,6 +2,10 @@ package joryu.sns_service.profile.dto.response
 
 import joryu.sns_service.profile.entity.Profile
 
-data class ProfileInfoResponse(val name: String) {
-    constructor(profile: Profile): this(profile.name)
+data class ProfileInfoResponse(
+        val name: String?,
+        val followerNumber: Int?,
+        val followingNumber: Int?
+) {
+    constructor(profile: Profile?) : this(profile?.name, profile?.followerNumber, profile?.followingNumber)
 }