feat: 그룹 검색 응답값에 태그 정보 추가

DDD-Community · Dec 11, 2024 · 3e09cb7 · 3e09cb7
1 parent a6c7efa
commit 3e09cb7
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Showing 6 changed files with 49 additions and 4 deletions.
diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/application/GroupFacade.kt b/src/main/kotlin/com/hero/alignlab/domain/group/application/GroupFacade.kt
@@ -258,15 +258,19 @@ class GroupFacade(
 
     suspend fun searchGroup(user: AuthUser, keyword: String?, pageRequest: HeroPageRequest): Page<SearchGroupResponse> {
         val groups = groupService.findByKeywordAndPage(keyword, pageRequest.toDefault())
+        val groupIds = groups.content.map { group -> group.id }
 
-        val groupUserByUid = groups.content.map { group -> group.id }
+        val groupUserByUid = groupIds
             .run { groupUserService.findByUidAndGroupIdIn(user.uid, this) }
             .associateBy { groupUser -> groupUser.groupId }
 
+        val groupTagsByGroupId = groupTagService.findGroupTagNamesByGroupIds(groupIds)
+
         return groups
             .map { group ->
                 val hasJoined = groupUserByUid[group.id] != null
-                SearchGroupResponse.from(group, hasJoined)
+                val groupTags = groupTagsByGroupId[group.id]
+                SearchGroupResponse.from(group, hasJoined, groupTags)
             }
     }
 

diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/application/GroupTagService.kt b/src/main/kotlin/com/hero/alignlab/domain/group/application/GroupTagService.kt
@@ -50,6 +50,14 @@ class GroupTagService(
         }
     }
 
+    suspend fun findGroupTagNamesByGroupIds(groupIds: List<Long>): Map<Long, List<String>> {
+        return withContext(Dispatchers.IO) {
+            groupTagRepository.findByGroupIds(groupIds)
+                .groupBy { it.groupId }
+                .mapValues { entry -> entry.value.map { it.tagName } }
+        }
+    }
+
     fun validateGroupTag(tagNames: List<String>) {
         if (tagNames.size > 3) {
             throw InvalidRequestException(ErrorCode.OVER_COUNT_GROUP_TAG_ERROR)

diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/infrastructure/GroupTagQRepository.kt b/src/main/kotlin/com/hero/alignlab/domain/group/infrastructure/GroupTagQRepository.kt
@@ -1,9 +1,12 @@
 package com.hero.alignlab.domain.group.infrastructure
 
 import com.hero.alignlab.domain.group.domain.GroupTag
+import com.hero.alignlab.domain.group.infrastructure.result.GroupTagQueryResult
 
 interface GroupTagQRepository {
     fun findByGroupId(groupId: Long): List<GroupTag>
 
+    fun findByGroupIds(groupIds: List<Long>): List<GroupTagQueryResult>
+
     fun deleteGroupTagMapByGroupId(groupId: Long)
 }
diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/infrastructure/GroupTagQRepositoryImpl.kt b/src/main/kotlin/com/hero/alignlab/domain/group/infrastructure/GroupTagQRepositoryImpl.kt
@@ -3,6 +3,8 @@ package com.hero.alignlab.domain.group.infrastructure
 import com.hero.alignlab.domain.group.domain.GroupTag
 import com.hero.alignlab.domain.group.domain.QGroupTag.groupTag
 import com.hero.alignlab.domain.group.domain.QGroupTagMap.groupTagMap
+import com.hero.alignlab.domain.group.infrastructure.result.GroupTagQueryResult
+import com.querydsl.core.types.Projections
 import com.querydsl.jpa.impl.JPAQueryFactory
 
 class GroupTagQRepositoryImpl(
@@ -15,6 +17,23 @@ class GroupTagQRepositoryImpl(
             .fetch()
     }
 
+    override fun findByGroupIds(groupIds: List<Long>): List<GroupTagQueryResult> {
+        return queryFactory
+            .select(
+                Projections.constructor(
+                    GroupTagQueryResult::class.java,
+                    groupTag.id,
+                    groupTagMap.groupId,
+                    groupTag.name,
+                )
+            )
+            .from(groupTag)
+            .join(groupTagMap).on(groupTag.id.eq(groupTagMap.tagId))
+            .where(groupTagMap.groupId.`in`(groupIds))
+            .fetch()
+    }
+
+
     override fun deleteGroupTagMapByGroupId(groupId: Long) {
         queryFactory.delete(groupTagMap)
             .where(groupTagMap.groupId.eq(groupId))

diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/infrastructure/result/GroupTagQueryResult.kt b/src/main/kotlin/com/hero/alignlab/domain/group/infrastructure/result/GroupTagQueryResult.kt
@@ -0,0 +1,8 @@
+package com.hero.alignlab.domain.group.infrastructure.result
+
+/** QueryDsl Projection Class(수정 주의) */
+class GroupTagQueryResult(
+    val tagId: Long,
+    val groupId: Long,
+    val tagName: String,
+)
diff --git a/src/main/kotlin/com/hero/alignlab/domain/group/model/response/SearchGroupResponse.kt b/src/main/kotlin/com/hero/alignlab/domain/group/model/response/SearchGroupResponse.kt
@@ -15,16 +15,19 @@ data class SearchGroupResponse(
     val isHidden: Boolean,
     /** 그룹에 속해 있는지 여부 */
     val hasJoined: Boolean,
+    /** 그룹 태그 리스트 */
+    val tagNames: List<String>,
 ) {
     companion object {
-        fun from(group: Group, hasJoined: Boolean): SearchGroupResponse {
+        fun from(group: Group, hasJoined: Boolean, tagNames: List<String>?): SearchGroupResponse {
             return SearchGroupResponse(
                 id = group.id,
                 userCount = group.userCount,
                 userCapacity = group.userCapacity,
                 name = group.name,
                 isHidden = group.isHidden,
-                hasJoined = hasJoined
+                hasJoined = hasJoined,
+                tagNames = tagNames ?: emptyList(),
             )
         }
     }