refactor(AuditingEntity): 생성 시각 분리

- created_at 을 관리하는 Entity 를 추상 클래스로 분리

Author: leegwichan

src/main/java/eatda/domain/AuditingEntity.java

@@ -0,0 +1,20 @@
+package eatda.domain;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.MappedSuperclass;
+import jakarta.persistence.PrePersist;
+import java.time.LocalDateTime;
+import lombok.Getter;
+
+@Getter
+@MappedSuperclass
+public abstract class AuditingEntity {
+
+    @Column(name = "created_at", nullable = false)
+    private LocalDateTime createdAt;
+
+    @PrePersist
+    protected void onCreate() {
+        this.createdAt = LocalDateTime.now();
+    }
+}

src/main/java/eatda/domain/article/Article.java

@@ -1,12 +1,12 @@
 package eatda.domain.article;
 
+import eatda.domain.AuditingEntity;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.Table;
-import java.time.LocalDateTime;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -15,7 +15,7 @@
 @Entity
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Article {
+public class Article extends AuditingEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -33,14 +33,10 @@ public class Article {
     @Column(name = "image_key", nullable = false, length = 511)
     private String imageKey;
 
-    @Column(name = "created_at", nullable = false)
-    private LocalDateTime createdAt;
-
     public Article(String title, String subtitle, String articleUrl, String imageKey) {
         this.title = title;
         this.subtitle = subtitle;
         this.articleUrl = articleUrl;
         this.imageKey = imageKey;
-        this.createdAt = LocalDateTime.now();
     }
 }

src/main/java/eatda/domain/member/Member.java

@@ -1,5 +1,6 @@
 package eatda.domain.member;
 
+import eatda.domain.AuditingEntity;
 import eatda.exception.BusinessErrorCode;
 import eatda.exception.BusinessException;
 import jakarta.annotation.Nullable;
@@ -19,7 +20,7 @@
 @Entity
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Member {
+public class Member extends AuditingEntity {
 
     private static final String EMAIL_REGEX = "^[^@\\s]+@[^@\\s]+\\.[^@\\s]+$";
 
@@ -42,16 +43,12 @@ public class Member {
     @Column(name = "opt_in_marketing")
     private Boolean optInMarketing;
 
-    @Column(name = "created_at", nullable = false)
-    private LocalDateTime createdAt;
-
     public Member(String socialId, String email, String nickname) {
         validateSocialId(socialId);
         validateEmail(email);
         this.socialId = socialId;
         this.email = email;
         this.nickname = nickname;
-        this.createdAt = LocalDateTime.now();
     }
 
     public Member(

src/main/java/eatda/domain/store/Cheer.java

@@ -1,5 +1,6 @@
 package eatda.domain.store;
 
+import eatda.domain.AuditingEntity;
 import eatda.domain.member.Member;
 import eatda.exception.BusinessErrorCode;
 import eatda.exception.BusinessException;
@@ -21,7 +22,7 @@
 @Entity
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Cheer {
+public class Cheer extends AuditingEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -44,9 +45,6 @@ public class Cheer {
     @Column(name = "is_admin", nullable = false)
     private boolean isAdmin;
 
-    @Column(name = "created_at", nullable = false)
-    private LocalDateTime createdAt;
-
     public Cheer(Member member, Store store, String description, String imageKey) {
         validateDescription(description);
         validateImageKey(imageKey);
@@ -56,7 +54,6 @@ public Cheer(Member member, Store store, String description, String imageKey) {
         this.imageKey = imageKey;
 
         this.isAdmin = false;
-        this.createdAt = LocalDateTime.now();
     }
 
     private void validateDescription(String description) {

src/main/java/eatda/domain/store/Store.java

@@ -1,5 +1,6 @@
 package eatda.domain.store;
 
+import eatda.domain.AuditingEntity;
 import jakarta.persistence.Column;
 import jakarta.persistence.Embedded;
 import jakarta.persistence.Entity;
@@ -19,7 +20,7 @@
 @Entity
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Store {
+public class Store extends AuditingEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -50,9 +51,6 @@ public class Store {
     @Embedded
     private Coordinates coordinates;
 
-    @Column(name = "created_at", nullable = false)
-    private LocalDateTime createdAt;
-
     @Builder
     private Store(String kakaoId,
                   StoreCategory category,
@@ -71,6 +69,5 @@ private Store(String kakaoId,
         this.roadAddress = roadAddress;
         this.lotNumberAddress = lotNumberAddress;
         this.coordinates = new Coordinates(latitude, longitude);
-        this.createdAt = LocalDateTime.now();
     }
 }