fix: 이미 그룹에 조인하지 않은 경우에만, 그룹 생성 가능

DDD-Community · Jul 28, 2024 · c4af780 · c4af780
1 parent b7a023f
commit c4af780
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diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/application/GroupService.kt b/src/main/kotlin/com/hero/alignlab/domain/group/application/GroupService.kt
@@ -5,6 +5,7 @@ import com.hero.alignlab.config.database.TransactionTemplates
 import com.hero.alignlab.domain.auth.model.AuthUser
 import com.hero.alignlab.domain.group.domain.Group
 import com.hero.alignlab.domain.group.infrastructure.GroupRepository
+import com.hero.alignlab.domain.group.infrastructure.GroupUserRepository
 import com.hero.alignlab.domain.group.model.request.CreateGroupRequest
 import com.hero.alignlab.domain.group.model.request.UpdateGroupRequest
 import com.hero.alignlab.domain.group.model.response.CreateGroupResponse
@@ -23,6 +24,7 @@ import java.util.*
 @Service
 class GroupService(
     private val groupRepository: GroupRepository,
+    private val groupUserRepository: GroupUserRepository,
     private val txTemplates: TransactionTemplates,
     private val publisher: ApplicationEventPublisher,
 ) {
@@ -31,6 +33,10 @@ class GroupService(
             throw InvalidRequestException(ErrorCode.DUPLICATE_GROUP_NAME_ERROR)
         }
 
+        if (withContext(Dispatchers.IO) { groupUserRepository.findAllByUid(user.uid) }.isNotEmpty()) {
+            throw InvalidRequestException(ErrorCode.DUPLICATE_GROUP_JOIN_ERROR)
+        }
+
         val createdGroup = txTemplates.writer.executes {
             val group = groupRepository.save(
                 Group(

diff --git a/src/main/kotlin/com/hero/alignlab/exception/ErrorCode.kt b/src/main/kotlin/com/hero/alignlab/exception/ErrorCode.kt
@@ -35,6 +35,7 @@ enum class ErrorCode(val status: HttpStatus, val description: String) {
     DUPLICATE_GROUP_NAME_ERROR(HttpStatus.BAD_REQUEST, "중복된 그룹명입니다."),
     NOT_FOUND_GROUP_ERROR(HttpStatus.NOT_FOUND, "그룹 정보를 찾을 수 없습니다."),
     IMPOSSIBLE_TO_JOIN_GROUP_ERROR(HttpStatus.BAD_REQUEST, "그룹에 들어갈 수 없습니다."),
+    ALREADY_JOIN_GROUP_ERROR(HttpStatus.BAD_REQUEST, "이미 그룹에 들어가 있습니다."),
 
     /** Group User Error Code */
     DUPLICATE_GROUP_JOIN_ERROR(HttpStatus.BAD_REQUEST, "한개의 그룹만 참여 가능합니다."),