feature #40 - Like Table Create

Like 테이블 생성.
ReviewDto.Response 에 Like Count 포함하게 변경
- 추가해야 하는 설정들
Member 와 연관관계 설정
동일한 유저가 누르면 좋아요 delete true로 변경

build.gradle

@@ -29,8 +29,8 @@ dependencies {
 	asciidoctorExtensions 'org.springframework.restdocs:spring-restdocs-asciidoctor'
 	implementation 'org.springframework.restdocs:spring-restdocs-core'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
-	implementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
-	implementation 'org.springframework.boot:spring-boot-starter-security'
+//	implementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
+//	implementation 'org.springframework.boot:spring-boot-starter-security'
 	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	compileOnly 'org.projectlombok:lombok'

src/main/java/com/codestates/server/like/controller/LikeController.java

@@ -0,0 +1,24 @@
+package com.codestates.server.like.controller;
+
+import com.codestates.server.like.mapper.LikeMapper;
+import com.codestates.server.like.service.LikeService;
+import com.codestates.server.review.dto.ReviewDto;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+public class LikeController {
+    private final LikeService likeService;
+    private final LikeMapper likeMapper;
+    @PostMapping("/review/{review-id}/likes")
+    public ResponseEntity likes(@PathVariable("review-id") Long reviewId) {
+        likeService.addlike(likeMapper.reviewIdToLike(reviewId));
+        return new ResponseEntity(HttpStatus.OK);
+    }
+}

src/main/java/com/codestates/server/like/entity/ReviewLike.java

@@ -0,0 +1,31 @@
+package com.codestates.server.like.entity;
+
+import com.codestates.server.review.entity.Review;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import javax.persistence.*;
+
+@Entity
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class ReviewLike {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne //(targetEntity = Tag.class, fetch = FetchType.LAZY)
+    @JoinColumn(name = "review_id", insertable = false, updatable = false)
+    private Review review;
+    @Column(name = "review_id")
+    private Long reviewId;
+
+    private Boolean delete = false;
+//    @ManyToOne
+//    @JoinColumn(name = "MEMBER_ID")
+//    private Member member;
+}

src/main/java/com/codestates/server/like/mapper/LikeMapper.java

@@ -0,0 +1,12 @@
+package com.codestates.server.like.mapper;
+
+import com.codestates.server.like.entity.ReviewLike;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.ReportingPolicy;
+
+@Mapper(componentModel = "spring", unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public interface LikeMapper {
+    @Mapping(target = "reviewId", source = "review_id")
+    ReviewLike reviewIdToLike(Long review_id);
+}

src/main/java/com/codestates/server/like/repository/LikeRepository.java

@@ -0,0 +1,9 @@
+package com.codestates.server.like.repository;
+
+import com.codestates.server.like.entity.ReviewLike;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface LikeRepository extends JpaRepository<ReviewLike, Long> {
+}

src/main/java/com/codestates/server/like/service/LikeService.java

@@ -0,0 +1,23 @@
+package com.codestates.server.like.service;
+
+import com.codestates.server.like.entity.ReviewLike;
+import com.codestates.server.like.repository.LikeRepository;
+import com.codestates.server.review.entity.Review;
+import com.codestates.server.review.repository.ReviewRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+public class LikeService {
+    @Autowired
+    private LikeRepository likeRepository;
+
+    @Autowired
+    private ReviewRepository reviewRepository;
+
+    @Transactional
+    public void addlike(ReviewLike like) {
+        likeRepository.save(like);
+    }
+}

src/main/java/com/codestates/server/review/dto/ReviewDto.java

@@ -36,5 +36,6 @@ public static class Response {
         private int score;
         private String content;
         private Set<String> tags;
+        private long likes;
     }
 }

src/main/java/com/codestates/server/review/entity/Review.java

@@ -1,15 +1,17 @@
 package com.codestates.server.review.entity;
 
+import com.codestates.server.like.entity.ReviewLike;
 import com.codestates.server.tag.entity.ReviewTag;
 import lombok.*;
-import org.springframework.data.annotation.CreatedBy;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
 
 import javax.persistence.*;
 import java.time.LocalDateTime;
+import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 @Entity
@@ -47,6 +49,9 @@ public class Review {
     @Column(nullable = false, columnDefinition = "DATETIME(0)")
     private LocalDateTime update_at;
 
+    @OneToMany(mappedBy = "review")
+    private List<ReviewLike> likes = new ArrayList<>();
+
     @OneToMany(mappedBy = "review")
     private Set<ReviewTag> reviewTags = new HashSet<>();
 

src/main/java/com/codestates/server/review/mapper/ReviewMapper.java

@@ -11,5 +11,7 @@ public interface ReviewMapper {
     Review postToReview(ReviewDto.Post post);
     @Mapping(target = "tags",
             expression = "java(review.getReviewTags().stream().map(i -> i.getTagId()).collect(java.util.stream.Collectors.toSet()))")
+    @Mapping(target = "likes",
+                    expression = "java(review.getLikes().stream().count())")
     ReviewDto.Response reviewToResponse(Review review);
 }

src/main/resources/application.yml

@@ -7,8 +7,8 @@ spring:
     url: jdbc:h2:mem:test
   jpa:
     hibernate:
-      ddl-auto: create  # (1) ??? ?? ??
-    show-sql: true      # (2) SQL ?? ??
+      ddl-auto: create
+    show-sql: true
     properties:
       hibernate:
         format_sql: true