[#20] 게시물에 대한 전반적인 도메인 생성

- 게시물, 댓글, 좋아요, 좋아요 클릭 유저 Entity 생성
- BaseTimeEntity class 생성하여 생성 날짜, 수정 날짜 자동으로 변경

src/main/java/com/social/instagram/InstagramSocialApplication.java

@@ -3,15 +3,20 @@
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.EnableAspectJAutoProxy;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 /*
     @EnableAspectJAutoProxy
     AspectJ의 @Aspect를 handling 할 수 있도록 지원해준다. Spring AOP는 메서드 실행의 기능만 사용 할 수 있지만
     AspectJ는 메서드 호출, 메서드 실행, 생성자 호출등 다양한 기능을 제공해주고 있다. 또한 AspectJ는 컴파일 시점에서 Weaving을 하기 때문에
     spring AOP보다 비교적 더 좋은 성능을 낸다.
+
+    @EnableJpaAuditing
+    JPA Auditing 어노테이션을 활성화 하는 기능
 */
 @SpringBootApplication
 @EnableAspectJAutoProxy
+@EnableJpaAuditing
 public class InstagramSocialApplication {
 
     public static void main(String[] args) {

src/main/java/com/social/instagram/domain/Post.java

@@ -1,22 +1,21 @@
 package com.social.instagram.domain;
 
+import com.social.instagram.domain.time.BaseTimeEntity;
 import com.social.instagram.dto.PostDto;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import org.hibernate.annotations.CreationTimestamp;
 
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
-import java.time.LocalDateTime;
 
 @Entity
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Post {
+public class Post extends BaseTimeEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -26,10 +25,7 @@ public class Post {
 
     private String comment;
 
-    @CreationTimestamp
-    private LocalDateTime createTime;
-
-    private long nice;
+    private String fileName;
 
     @Builder
     public Post(String userId, String comment) {

src/main/java/com/social/instagram/domain/PostNice.java

@@ -0,0 +1,20 @@
+package com.social.instagram.domain;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class PostNice {
+
+    @Id
+    private long postId;
+
+    long nice;
+
+}

src/main/java/com/social/instagram/domain/PostNiceClick.java

@@ -0,0 +1,25 @@
+package com.social.instagram.domain;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class PostNiceClick {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    private long postId;
+
+    private String niceClickUserId;
+
+}

src/main/java/com/social/instagram/domain/Reply.java

@@ -0,0 +1,30 @@
+package com.social.instagram.domain;
+
+import com.social.instagram.domain.time.BaseTimeEntity;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Reply extends BaseTimeEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    private long postId;
+
+    private String userId;
+
+    private String comment;
+
+    private long nice;
+
+}

src/main/java/com/social/instagram/domain/ReplyNiceClick.java

@@ -0,0 +1,27 @@
+package com.social.instagram.domain;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class ReplyNiceClick {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    private long post_id;
+
+    private String userId;
+
+    private String niceClickUserId;
+
+}

src/main/java/com/social/instagram/domain/time/BaseTimeEntity.java

@@ -0,0 +1,30 @@
+package com.social.instagram.domain.time;
+
+import lombok.Getter;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import javax.persistence.EntityListeners;
+import javax.persistence.MappedSuperclass;
+import java.time.LocalDateTime;
+
+/*
+    @MappedSuperclass
+    BaseTimeEntity class 아래에 정의된 변수를 컬럼으로 인식
+
+    @EntityListeners
+    BaseTimeEntity class Auditing 기능을 포함하여 자동으로 시간에 대한 값을 넣어주는 기능
+*/
+@Getter
+@MappedSuperclass
+@EntityListeners(AuditingEntityListener.class)
+public class BaseTimeEntity {
+
+    @CreatedDate
+    private LocalDateTime createdTime;
+
+    @LastModifiedDate
+    private LocalDateTime modifiedTime;
+
+}