#51 Fix: Collection 생성 - 컨버터로 수정

Author: nimuy99

src/main/java/com/memesphere/domain/collection/converter/CollectionConverter.java

@@ -5,12 +5,19 @@
 import com.memesphere.domain.memecoin.entity.MemeCoin;
 import com.memesphere.domain.collection.dto.response.CollectionPageResponse;
 import com.memesphere.domain.collection.dto.response.CollectionPreviewResponse;
+import com.memesphere.domain.user.entity.User;
 import org.springframework.data.domain.Page;
 
 import java.util.List;
 import java.util.stream.Collectors;
 
 public class CollectionConverter {
+
+    public static Collection toCollection(User user, MemeCoin coin) {
+        return Collection.builder()
+                .user(user).memeCoin(coin).build();
+    }
+
     public static CollectionPageResponse toCollectionPageDTO(Page<Collection> collectionPage) {
         List<CollectionPreviewResponse> collectionItems = collectionPage.getContent().stream()
                 .map(collection -> toCollectionPreviewDTO(collection))

src/main/java/com/memesphere/domain/collection/entity/Collection.java

@@ -10,6 +10,7 @@
 
 @Entity
 @Getter
+@Builder
 @DynamicUpdate
 @DynamicInsert
 @AllArgsConstructor
@@ -29,11 +30,6 @@ public class Collection extends BaseEntity {
     @JoinColumn(name="coin_id")
     private MemeCoin memeCoin;
 
-    public Collection(User user, MemeCoin memeCoin) {
-        this.user = user;
-        this.memeCoin = memeCoin;
-    }
-
     public Long getMemeCoinId() {
         return memeCoin.getId();
     }

src/main/java/com/memesphere/domain/collection/service/CollectionCommandServiceImpl.java

@@ -1,5 +1,6 @@
 package com.memesphere.domain.collection.service;
 
+import com.memesphere.domain.collection.converter.CollectionConverter;
 import com.memesphere.domain.collection.entity.Collection;
 import com.memesphere.domain.collection.repository.CollectionRepository;
 import com.memesphere.domain.memecoin.entity.MemeCoin;
@@ -31,7 +32,7 @@ public String addCollectCoin(Long userId, Long coinId) {
         }
 
         // 새로운 컬렉션 저장
-        Collection collection = new Collection(user, coin);
+        Collection collection = CollectionConverter.toCollection(user, coin);
         collectionRepository.save(collection);
 
         return "[coinId] " + coinId + " 등록 완료.";