3.5차 배포 [Fix] 좋아요추가수정 (#98)

src/main/java/umc/codeplay/apiPayLoad/code/status/ErrorStatus.java

@@ -34,6 +34,7 @@ public enum ErrorStatus implements BaseErrorCode {
     MUSIC_NOT_FOUND(HttpStatus.BAD_REQUEST, "MUSIC400", "음원을 찾을 수 없습니다."),
 
     LIKE_NOT_FOUND(HttpStatus.BAD_REQUEST, "LIKE400", "해당 좋아요를 찾을 수 없습니다."),
+    LIKE_ALREADY_EXIST(HttpStatus.BAD_REQUEST, "LIKE401", "이미 좋아요 목록에 추가된 음원입니다."),
 
     EMAIL_SEND_ERROR(HttpStatus.BAD_REQUEST, "EMAIL400", "메일 발송에 실패하였습니다."),
     EMAIL_CODE_ERROR(HttpStatus.BAD_REQUEST, "EMAIL401", "유효한 코드가 아닙니다.");

src/main/java/umc/codeplay/converter/MusicLikeConverter.java

@@ -17,7 +17,7 @@ public static LikeResponseDTO.addLikeResponseDTO toLikeResponseDTO(MusicLike lik
         return LikeResponseDTO.addLikeResponseDTO
                 .builder()
                 .musicId(like.getMusic().getId())
-                .like(like)
+                .musicLikeId(like.getId())
                 .build();
     }
 

src/main/java/umc/codeplay/domain/Member.java

@@ -6,6 +6,7 @@
 
 import lombok.*;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import umc.codeplay.domain.common.BaseEntity;
 import umc.codeplay.domain.enums.Role;
 import umc.codeplay.domain.enums.SocialStatus;
@@ -43,5 +44,6 @@ public void encodePassword(String password) {
     private String profileUrl;
 
     @OneToMany(mappedBy = "member", cascade = CascadeType.ALL)
+    @JsonIgnore
     private List<MusicLike> likeList = new ArrayList<>();
 }

src/main/java/umc/codeplay/domain/Music.java

@@ -6,6 +6,7 @@
 
 import lombok.*;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import umc.codeplay.domain.common.BaseEntity;
 import umc.codeplay.domain.mapping.MusicLike;
 
@@ -30,5 +31,6 @@ public class Music extends BaseEntity {
     private String musicUrl;
 
     @OneToMany(mappedBy = "music", cascade = CascadeType.ALL)
+    @JsonIgnore
     private List<MusicLike> likeList = new ArrayList<>();
 }

src/main/java/umc/codeplay/dto/LikeResponseDTO.java

@@ -5,8 +5,6 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
-import umc.codeplay.domain.mapping.MusicLike;
-
 public class LikeResponseDTO {
 
     @Getter
@@ -15,7 +13,7 @@ public class LikeResponseDTO {
     @NoArgsConstructor
     public static class addLikeResponseDTO {
         Long musicId;
-        MusicLike like;
+        Long musicLikeId;
     }
 
     @Getter

src/main/java/umc/codeplay/repository/MusicLikeRepository.java

@@ -10,4 +10,6 @@
 
 public interface MusicLikeRepository extends JpaRepository<MusicLike, Long> {
     Optional<MusicLike> findByMemberAndMusic(Member member, Music music);
+
+    boolean existsByMemberAndMusic(Member member, Music music);
 }

src/main/java/umc/codeplay/service/LikeService.java

@@ -37,6 +37,11 @@ public MusicLike addLike(String username, LikeRequestDTO.addLikeRequestDTO reque
                         .findByEmail(username)
                         .orElseThrow(() -> new GeneralException(ErrorStatus.MEMBER_NOT_FOUND));
 
+        // 중복 좋아요 방지
+        if (musicLikeRepository.existsByMemberAndMusic(member, music)) {
+            throw new GeneralException(ErrorStatus.LIKE_ALREADY_EXIST);
+        }
+
         MusicLike newLike = MusicLikeConverter.toMusicLike(member, music);
         return musicLikeRepository.save(newLike);
     }