Merge pull request #80 from sw-security-web-app/SCRUM-84

[SCRUM-84] 멤버 삭제 시 참조 키 NULL오류 처리

Author: tkv00

src/main/java/example/demo/domain/chat/Chat.java

@@ -6,6 +6,8 @@
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 @Getter
 @NoArgsConstructor
@@ -30,6 +32,7 @@ public class Chat extends BaseEntity {
 
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "member_id")
+    @OnDelete(action = OnDeleteAction.SET_NULL)
     private Member member;
 
     @ManyToOne(fetch = FetchType.LAZY)

src/main/java/example/demo/domain/chat/ChatRoom.java

@@ -6,6 +6,8 @@
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -21,6 +23,7 @@ public class ChatRoom extends BaseEntity {
 
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "member_id")
+    @OnDelete(action = OnDeleteAction.SET_NULL)
     private Member member;
 
     @OneToMany(mappedBy = "chatRoom", cascade = CascadeType.ALL, orphanRemoval = true)