Entity 연관관계 메서드 Builder 패턴으로 구현

src/main/java/com/konkuk/chapterkeep/domain/BookReview.java

@@ -3,6 +3,7 @@
 import com.konkuk.chapterkeep.domain.enums.CoverColor;
 import jakarta.persistence.*;
 import lombok.AccessLevel;
+import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
@@ -29,6 +30,9 @@ public class BookReview extends BaseTimeEntity {
     @Enumerated(EnumType.STRING)
     private CoverColor coverColor;
 
+    @Column(name = "cover_url")
+    private String coverUrl;
+
     @OneToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "book_id")
     private BookInfo bookInfo;
@@ -37,4 +41,42 @@ public class BookReview extends BaseTimeEntity {
     @JoinColumn(name = "member_id")
     private Member member;
 
+    @Builder
+    private BookReview(Member member, int rating, String content, String quotation,
+                       CoverColor coverColor, String coverUrl, BookInfo bookInfo) {
+        this.member = member;
+        this.rating = rating;
+        this.content = content;
+        this.quotation = quotation;
+        this.coverColor = coverColor;
+        this.coverUrl = coverUrl;
+        this.bookInfo = bookInfo;
+
+        // 연관관계 설정
+        if (member != null) {
+            member.getBookReviews().add(this);
+        }
+    }
+
+    // 생성 메서드
+    public static BookReview createBookReview(Member member, int rating, String content, String quotation,
+                                              String coverUrl, CoverColor coverColor, BookInfo bookInfo) {
+        return BookReview.builder()
+                .member(member)
+                .rating(rating)
+                .content(content)
+                .quotation(quotation)
+                .coverColor(coverColor)
+                .coverUrl(coverUrl)
+                .bookInfo(bookInfo)
+                .build();
+    }
+
+    // 연관 관계 해제 메서드
+    public void removeMember() {
+        if (member != null) {
+            member.getBookReviews().remove(this);
+            this.member = null;
+        }
+    }
 }

src/main/java/com/konkuk/chapterkeep/domain/Comment.java

@@ -2,6 +2,7 @@
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
+import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
@@ -30,4 +31,45 @@ public class Comment extends BaseTimeEntity {
     @JoinColumn(name = "post_id")
     private Post post;
 
+    @Builder
+    private Comment(Member member, Post post, String content, boolean isAnonymous) {
+        this.member = member;
+        this.post = post;
+        this.content = content;
+        this.isAnonymous = isAnonymous;
+
+        // 양방향 연관 관계 설정
+        if (member != null) {
+            member.getComments().add(this);
+        }
+        if (post != null) {
+            post.getComments().add(this);
+        }
+    }
+
+    // 생성 메서드
+    public static Comment createComment(Member member, Post post, String content, boolean isAnonymous) {
+        return Comment.builder()
+                .member(member)
+                .post(post)
+                .content(content)
+                .isAnonymous(isAnonymous)
+                .build();
+    }
+
+    // 연관 관계 해제 메서드 (member)
+    public void removeMember() {
+        if (member != null) {
+            member.getComments().remove(this);
+            this.member = null;
+        }
+    }
+
+    // 연관 관계 해제 메서드 (post)
+    public void removePost() {
+        if (post != null) {
+            post.getComments().remove(this);
+            this.post = null;
+        }
+    }
 }

src/main/java/com/konkuk/chapterkeep/domain/Member.java

@@ -54,13 +54,28 @@ public class Member {
 
 
     @Builder
-    public Member(String name, String password, String nickname, String introduction, String profileUrl, Role role, Boolean visibility) {
+    public Member(String name, String password, String nickname, String introduction,
+                  String profileUrl, Role role, Boolean visibility) {
         this.name = name;
         this.password = password;
         this.nickname = nickname;
         this.introduction = introduction;
         this.profileUrl = profileUrl;
         this.role = role;
-        this.visibility = (visibility != null) ? visibility : true; // null인 경우 true로 설정
+        this.visibility = visibility;
     }
-}
+
+    public static Member createMember(String name, String password, String nickname, String introduction,
+                                      String profileUrl, Role role, boolean visibility) {
+        return Member.builder()
+                .name(name)
+                .password(password)
+                .nickname(nickname)
+                .introduction(introduction)
+                .profileUrl(profileUrl)
+                .role(role)
+                .visibility(visibility)
+                .build();
+    }
+}
+

src/main/java/com/konkuk/chapterkeep/domain/Post.java

@@ -2,6 +2,7 @@
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
+import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import java.util.ArrayList;
@@ -33,4 +34,32 @@ public class Post extends BaseTimeEntity {
     @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<Comment> comments = new ArrayList<>();
 
+    @Builder
+    private Post(Member member, String title, boolean isAnonymous) {
+        this.member = member;
+        this.title = title;
+        this.isAnonymous = isAnonymous;
+
+        // 양방향 연관관계 설정
+        if (member != null) {
+            member.getPosts().add(this);
+        }
+    }
+
+    // 생성 메서드
+    public static Post createPost(Member member, String title, boolean isAnonymous) {
+        return Post.builder()
+                .member(member)
+                .title(title)
+                .isAnonymous(isAnonymous)
+                .build();
+    }
+
+    // 연관관계 제거 메서드
+    public void removeMember() {
+        if (this.member != null) {
+            this.member.getPosts().remove(this);
+            this.member = null;
+        }
+    }
 }

src/main/java/com/konkuk/chapterkeep/member/service/SignUpService.java

@@ -43,15 +43,15 @@ public SignUpResDto signUpProcess(SignUpReqDto signUpReqDto, MultipartFile profi
 
         Member member;
         try {
-            member = Member.builder()
-                    .name(username)
-                    .password(bCryptPasswordEncoder.encode(signUpReqDto.getPassword())) // 암호화
-                    .nickname(nickname)
-                    .role(Role.USER)
-                    .introduction(signUpReqDto.getIntroduction())
-                    .visibility(true)
-                    .profileUrl(profileUrl)
-                    .build();
+            member = Member.createMember(
+                    username,
+                    bCryptPasswordEncoder.encode(signUpReqDto.getPassword()), // 암호화
+                    nickname,
+                    signUpReqDto.getIntroduction(),
+                    profileUrl,
+                    Role.USER,
+                    true
+            );
             memberRepository.save(member);
         } catch (DataAccessException e) {
             throw new GeneralException(Code.DATABASE_ERROR, "회원 정보 저장 도중 오류 발생");
@@ -63,8 +63,6 @@ public SignUpResDto signUpProcess(SignUpReqDto signUpReqDto, MultipartFile profi
                 .build();
     }
 
-
-
     public boolean isUsernameExists(String username) {
         return memberRepository.existsByName(username);
     }