Matching 에러 해결

withmate/src/main/java/com/gdscewha/withmate/domain/matching/controller/MatchingController.java

@@ -72,9 +72,7 @@ public ResponseEntity<?> updateMatchingInfo(@RequestBody MatchingInputDto reqDto
     // 매칭 대기 취소: 내 매칭 삭제
     @DeleteMapping("/match/cancel")
     public ResponseEntity<?> cancelMatching() {
-        Matching matching = matchingService.deleteMatching();
-        if (matching == null)
-            return ResponseEntity.ok().body("취소할 Matching이 없습니다.");
-        return ResponseEntity.ok().body("기존 matching을 취소했습니다.");
+        String cancelMessage = matchingService.deleteMyMatching();
+        return ResponseEntity.ok().body(cancelMessage);
     }
 }

withmate/src/main/java/com/gdscewha/withmate/domain/matching/dto/MatchingResDto.java

@@ -1,6 +1,7 @@
 package com.gdscewha.withmate.domain.matching.dto;
 
 import com.gdscewha.withmate.domain.matching.entity.Matching;
+import com.gdscewha.withmate.domain.member.entity.Member;
 import com.gdscewha.withmate.domain.model.Category;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
@@ -17,11 +18,10 @@ public class MatchingResDto {
     private Category category;
     private String country;
 
-    // Matching을 받는 생성자
-    public MatchingResDto(Matching matching) {
-        this.nickname = matching.getMember().getNickname();
+    public MatchingResDto(Matching matching, Member member) {
+        this.nickname = member.getNickname();
         this.goal = matching.getGoal();
         this.category = matching.getCategory();
-        this.country = matching.getMember().getCountry();
+        this.country = member.getCountry();
     }
 }

withmate/src/main/java/com/gdscewha/withmate/domain/matching/service/MatchingService.java

@@ -17,6 +17,7 @@
 import com.gdscewha.withmate.domain.relation.service.RelationMateService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -70,7 +71,10 @@ public Matching createMatching(Member member, MatchingInputDto reqDto) {
                 .category(reqDto.getCategory())
                 .member(member)
                 .build();
-        return matchingRepository.save(matching);
+        matchingRepository.save(matching);
+        member.setMatching(matching);
+        memberRepository.save(member);
+        return matching;
     }
 
     // 매칭 객체 업데이트하기 (전에 매칭을 했던 사람) - 목표, 카테고리 업데이트
@@ -81,15 +85,25 @@ public Matching updateMatching(Matching matching, MatchingInputDto reqDto){
     }
 
     // 내 매칭 삭제 (매칭 취소)
-    public Matching deleteMatching() {
+    public String deleteMyMatching() {
         Member member = memberService.getCurrentMember();
         if (member.getMatching() != null) {
             matchingRepository.delete(member.getMatching());
             member.setMatching(null);
             memberRepository.save(member);
-            return member.getMatching();
+            return "기존 matching을 취소했습니다.";
         }
-        return null;
+        return "취소할 Matching이 없습니다.";
+    }
+
+    // 매칭 삭제
+    public Member deleteMatching(Member member) {
+        if (member.getMatching() != null) {
+            matchingRepository.delete(member.getMatching());
+            member.setMatching(null);
+            memberRepository.save(member);
+        }
+        return member;
     }
 
     // 모든 카테고리의 매칭중인 사람들을 조회
@@ -104,7 +118,10 @@ public List<MatchingResDto> getPeopleMatching() {
     }
     public List<MatchingResDto> convertToMatchingResDtoList(List<Matching> matchingList) {
         return matchingList.stream()
-                .map(MatchingResDto::new)
+                .map(matching -> {
+                    Member member = memberRepository.findMemberByMatching(matching);
+                    return new MatchingResDto(matching, member);
+                })
                 .collect(Collectors.toList());
     }
 
@@ -116,6 +133,7 @@ public MatchedResultDto getMatchedResult(MatchingInputDto reqDto) {
     }
 
     // Matching으로 Mates 관계 맺기
+    @Transactional
     public List<Matching> relateMatesByCategory(Category category, Matching myMatching) {
         if (category == null)
             throw new CategoryException(ErrorCode.CATEGORY_NOT_FOUND);
@@ -124,28 +142,30 @@ public List<Matching> relateMatesByCategory(Category category, Matching myMatchi
         // matchingList에 2개 이상이어야 매칭 가능
         if (matchingList.size() >= 2){
             Matching mateMatching = matchingList.get(0);
-            Member mate = mateMatching.getMember();
+            Member mate = memberRepository.findMemberByMatching(mateMatching);
             Member me = memberService.getCurrentMember();
             // mate 탈퇴시 matching도 삭제되므로 유효한 멤버
 
             List<Matching> mateList = new ArrayList<>(); // 메이트 리스트
             mateList.add(mateMatching);
             mateList.add(myMatching);
+            List<Member> memberList = new ArrayList<>();
+            memberList.add(mate);
+            memberList.add(me);
 
             // Relation 생성, MemberRelationPair 생성
             Relation pairRelation = relationMateService.createRelation();
-            memberRelationService.createMemberRelationPair(mateList, pairRelation);
+            memberRelationService.createMemberRelationPair(mateList, memberList, pairRelation);
             // Matching 삭제
-            matchingRepository.deleteAll(matchingList);
+            //matchingRepository.deleteAll(matchingList);
 
             // Member들의 isRelationed를 true로 업데이트 후 저장
             mate.setIsRelationed(true);
             me.setIsRelationed(true);
-            // 각 멤버에 Matching set 하기
-            mate.setMatching(mateMatching);
-            me.setMatching(myMatching);
-            memberRepository.save(mate);
-            memberRepository.save(me);
+
+            // 각 멤버에 Matching null로
+            memberRepository.save(deleteMatching(mate));
+            memberRepository.save(deleteMatching(me));
             // 수정된 Matching 리스트 반환
             return mateList;
         } else {

withmate/src/main/java/com/gdscewha/withmate/domain/memberrelation/service/MemberRelationService.java

@@ -43,22 +43,22 @@ public MemberRelation findLastMROfMember(Member member) {
     }
 
     // MR 두 개 만들고 저장, 두 Member의 isRelationed는 MatchingService에서 바꿔줌
-    public void createMemberRelationPair(List<Matching> matchingList, Relation relation){
+    public void createMemberRelationPair(List<Matching> matchingList, List<Member> memberList, Relation relation){
         Matching matching1 = matchingList.get(0);
         Matching matching2 = matchingList.get(1);
 
         MemberRelation myMR = MemberRelation.builder()
                 .goal(matching1.getGoal())
                 .category(matching1.getCategory())
                 // message is nullable
-                .member(matching1.getMember())
+                .member(memberList.get(0))
                 .relation(relation)
                 .build();
         MemberRelation mateMR = MemberRelation.builder()
                 .goal(matching2.getGoal())
                 .category(matching2.getCategory())
                 // message is nullable
-                .member(matching2.getMember())
+                .member(memberList.get(1))
                 .relation(relation)
                 .build();
         mRRepository.save(myMR);