feat: cascade 설정

backend/src/main/java/com/edufocus/edufocus/board/entity/vo/Board.java

@@ -64,10 +64,10 @@ public class Board {
     @OnDelete(action = OnDeleteAction.CASCADE)
     private Lecture lecture;
 
-    @OneToMany(mappedBy = "board", cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "board")
     private List<Comment> comments;
 
-    public ResponseBoardSummaryDto makeSummaryDto(){
+    public ResponseBoardSummaryDto makeSummaryDto() {
         return ResponseBoardSummaryDto.builder()
                 .id(id)
                 .title(title)
@@ -76,7 +76,7 @@ public class Board {
                 .build();
     }
 
-    public ResponseBoardDetailDto makeDetailDto(long userId){
+    public ResponseBoardDetailDto makeDetailDto(long userId) {
         return ResponseBoardDetailDto.builder()
                 .id(id)
                 .name(user.getName())

backend/src/main/java/com/edufocus/edufocus/board/entity/vo/Comment.java

@@ -10,6 +10,8 @@ import lombok.Builder;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 import org.hibernate.annotations.UpdateTimestamp;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
@@ -46,6 +48,7 @@ public class Comment {
 
     @ManyToOne
     @JoinColumn(name = "board_id")
+    @OnDelete(action = OnDeleteAction.CASCADE)
     Board board;
 
     public ResponseCommentDto makeCommentDto(long userId) {

backend/src/main/java/com/edufocus/edufocus/registration/entity/Registration.java

@@ -7,6 +7,8 @@ import com.edufocus.edufocus.report.entity.vo.ReportSet;
 import com.edufocus.edufocus.user.model.entity.vo.User;
 import jakarta.persistence.*;
 import lombok.*;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.UUID;
 
@@ -22,22 +24,23 @@ public class Registration {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private long id;
 
-    @ManyToOne(cascade = CascadeType.ALL)
+    @ManyToOne
     @JoinColumn(name = "user_id")
     private User user;
 
-    @ManyToOne(cascade = CascadeType.ALL)
+    @ManyToOne
+    @OnDelete(action = OnDeleteAction.CASCADE)
     @JoinColumn(name = "lecture_id")
     private Lecture lecture;
 
     @Enumerated(EnumType.STRING)
     private RegistrationStatus status;
 
-    public boolean isAccepted(){
+    public boolean isAccepted() {
         return status == RegistrationStatus.ACCEPTED;
     }
 
-    public Report makeReport(ReportSet reportSet, QuizSet quizSet, long lectureId){
+    public Report makeReport(ReportSet reportSet, QuizSet quizSet, long lectureId) {
         return Report.builder()
                 .allCount(0)
                 .correctCount(-1)

backend/src/main/resources/application.properties

@@ -21,7 +21,7 @@ spring.datasource.username=${USER_NAME}
 spring.datasource.password=${USER_PASSWORD}
 spring.mvc.pathmatch.matching-strategy=ant_path_matcher
 spring.jpa.database=mysql
-spring.jpa.hibernate.ddl-auto=update
+spring.jpa.hibernate.ddl-auto=create
 spring.jpa.show-sql=true  
 spring.jpa.properties.hibernate.jdbc.time_zone=Asia/Seoul
 management.endpoints.web.exposure.include=health,info