feat: Interest 삭제 시 Article 논리적 삭제로 변경

- Interest 엔티티에 소프트 삭제 지원 추가 (@SQLDelete, @SQLRestriction)
- is_deleted, deleted_at, updated_at 컬럼 추가
- FK 제약조건 ON DELETE CASCADE 제거 (schema.sql, schema-h2.sql)
- InterestService.removeInterest()에서 연결된 Article들 소프트 삭제 처리
- ArticleRepository.findAllByInterestId() 메서드 추가

Author: yuhandemian

monew/src/main/java/com/spring/monew/article/repository/ArticleRepository.java

@@ -37,4 +37,6 @@ public interface ArticleRepository extends JpaRepository<Article, UUID>, Article
       AND deleted_at < :threshold
     """, nativeQuery = true)
   List<UUID> findSoftDeletedBefore(@Param("threshold") Instant threshold);
+
+  List<Article> findAllByInterestId(UUID interestId);
 }

monew/src/main/java/com/spring/monew/interest/domain/Interest.java

@@ -16,16 +16,21 @@
 import lombok.NoArgsConstructor;
 import org.hibernate.annotations.ColumnDefault;
 import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.SQLRestriction;
+import org.hibernate.annotations.UpdateTimestamp;
 import org.jetbrains.annotations.TestOnly;
 
 @Entity
 @Table(name = "interests")
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @Getter
+@SQLDelete(sql = "UPDATE interests SET is_deleted = true, deleted_at = CURRENT_TIMESTAMP WHERE id = ?")
+@SQLRestriction("is_deleted = false")
 public class Interest {
 
     @Id
-    @GeneratedValue(strategy = GenerationType.UUID)   //PK 자동 삽입
+    @GeneratedValue(strategy = GenerationType.UUID)
     private UUID id;
 
     @Column(nullable = false, unique = true)
@@ -35,23 +40,33 @@ public class Interest {
     @Column(nullable = false, columnDefinition = "TEXT")
     private List<String> keywords;
 
-    /** DB TEXT(JSON) 직접 검색용: QueryDSL에서만 사용 */
     @Column(name = "keywords", insertable = false, updatable = false)
     private String keywordsString;
 
     @Column(name = "created_at", nullable = false, updatable = false)
     @CreationTimestamp
     private Instant createdAt;
 
+    @Column(name = "updated_at", nullable = false)
+    @UpdateTimestamp
+    private Instant updatedAt;
+
     @Column(name = "subscriptions_count", nullable = false)
     @ColumnDefault("0")
     private long subscriptionsCount;
 
+    @Column(name = "is_deleted", nullable = false)
+    @ColumnDefault("false")
+    private boolean isDeleted = false;
+
+    @Column(name = "deleted_at")
+    private Instant deletedAt;
+
     public Interest(String name, List<String> keywords) {
         this.name = name;
         this.keywords = keywords;
         this.createdAt = Instant.now();
-        this.subscriptionsCount = 0L; // 기본값 설정
+        this.subscriptionsCount = 0L;
     }
 
     public void update(List<String> keywords) {
@@ -68,7 +83,6 @@ public void decrementSubscriptionsCount() {
         }
     }
 
-    // 테스트 용
     @TestOnly
     public Interest(UUID id, String name, List<String> keywords, String keywordsString,
         Instant createdAt, long subscriptionsCount) {

monew/src/main/java/com/spring/monew/interest/service/impl/InterestServiceImpl.java

@@ -1,5 +1,7 @@
 package com.spring.monew.interest.service.impl;
 
+import com.spring.monew.article.domain.Article;
+import com.spring.monew.article.repository.ArticleRepository;
 import com.spring.monew.interest.controller.dto.request.InterestRegisterRequest;
 import com.spring.monew.interest.controller.dto.request.InterestUpdateRequest;
 import com.spring.monew.interest.controller.dto.response.CursorPageResponseInterestDto;
@@ -12,22 +14,24 @@
 import java.util.NoSuchElementException;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+@Slf4j
 @Service
 @Transactional
 @RequiredArgsConstructor
 public class InterestServiceImpl implements InterestService {
 
   private final InterestRepository interestRepository;
+  private final ArticleRepository articleRepository;
 
   @Override
   @Transactional
   public InterestDto addInterest(InterestRegisterRequest registerRequest) {
     List<String> similarNames = interestRepository.findSimilarNames(registerRequest.name(), 0.45);
 
-    //예외 처리 필요 interests name exixsts
     if (interestRepository.existsByName(registerRequest.name())) {
       throw new IllegalArgumentException("같은 이름이 존재합니다.");
     }
@@ -85,6 +89,14 @@ public void removeInterest(UUID interestId) {
     Interest interest = interestRepository.findById(interestId)
         .orElseThrow(() -> new NoSuchElementException("존재하지 않는 관심사입니다."));
 
+    List<Article> relatedArticles = articleRepository.findAllByInterestId(interestId);
+    
+    if (!relatedArticles.isEmpty()) {
+      log.info("관심사 삭제로 인한 연관 게시글 소프트 삭제: interestId={}, articleCount={}", 
+          interestId, relatedArticles.size());
+      articleRepository.deleteAll(relatedArticles);
+    }
+
     interestRepository.delete(interest);
   }
 }

monew/src/main/resources/schema-h2.sql

@@ -20,7 +20,10 @@ CREATE TABLE interests (
                            name VARCHAR(255) NOT NULL UNIQUE,
                            created_at TIMESTAMP NOT NULL,
                            keywords TEXT NOT NULL,
-                           subscriptions_count BIGINT NOT NULL DEFAULT 0
+                           subscriptions_count BIGINT NOT NULL DEFAULT 0,
+                           updated_at TIMESTAMP NOT NULL,
+                           is_deleted BOOLEAN NOT NULL DEFAULT FALSE,
+                           deleted_at TIMESTAMP
 );
 
 -- ==============================

monew/src/main/resources/schema.sql

@@ -64,7 +64,10 @@ CREATE TABLE interests
     name                VARCHAR(255) NOT NULL UNIQUE,
     created_at          TIMESTAMP WITH TIME ZONE  NOT NULL,
     keywords            TEXT         NOT NULL,
-    subscriptions_count BIGINT       NOT NULL DEFAULT 0
+    subscriptions_count BIGINT                NOT NULL DEFAULT 0,
+    updated_at          TIMESTAMP WITH TIME ZONE  NOT NULL,
+    is_deleted          BOOLEAN                   NOT NULL DEFAULT FALSE,
+    deleted_at          TIMESTAMP WITH TIME ZONE
 );
 
 -- name 컬럼 GIN 트라이그램 인덱스
@@ -107,7 +110,7 @@ CREATE TABLE articles
     deleted_at    TIMESTAMP WITH TIME ZONE      NULL,
     CONSTRAINT fk_article_interest FOREIGN KEY (interest_id)
         REFERENCES interests (id)
-        ON DELETE CASCADE ON UPDATE CASCADE
+        ON UPDATE CASCADE
 );
 
 -- ==============================