feat: #25 게시글 목록 가져오기에 좋아요 정보 추가

Team-Walkie · Nov 2, 2023 · b61c771 · b61c771
1 parent fde4535
commit b61c771
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Showing 5 changed files with 68 additions and 24 deletions.
diff --git a/src/main/java/com/whyranoid/walkie/domain/Post.java b/src/main/java/com/whyranoid/walkie/domain/Post.java
@@ -5,10 +5,14 @@
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 
-import javax.persistence.*;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
 import javax.validation.constraints.NotNull;
-import java.util.ArrayList;
-import java.util.List;
 
 @Entity
 @Getter
@@ -45,11 +49,6 @@ public class Post {
     @JoinColumn(name = "walkie_id", nullable = false) // referencedColumnName는 디폴트가 pk
     private Walkie user;
 
-    @ManyToMany
-    @JoinTable(name = "walkie_post_like",
-            joinColumns = @JoinColumn(name = "post_id", nullable = false),
-            inverseJoinColumns = @JoinColumn(name = "walkie_id", nullable = false))
-    private List<Walkie> liker = new ArrayList<>();
 
 //    @OneToOne(optional = false) // optional = false 안해주면 history가 겹치는 경우가 발생 시 에러
 //    @JoinColumn(name = "history", nullable = false)

diff --git a/src/main/java/com/whyranoid/walkie/dto/PostDto.java b/src/main/java/com/whyranoid/walkie/dto/PostDto.java
@@ -7,8 +7,8 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
+import java.util.ArrayList;
 import java.util.List;
-import java.util.stream.Collectors;
 
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
@@ -17,8 +17,8 @@ public class PostDto {
     @Schema(description = "[응답] 워키 아이디", example = "3")
     private Long viewerId;
 
-    @Schema(description = "[응답] 작성자 아이디", example = "2")
-    private Long posterId;
+    @Schema(description = "[응답] 작성자")
+    private WalkieDto poster;
 
     @Schema(description = "[응답] 게시글 pk", example = "26343")
     private Long postId;
@@ -27,7 +27,7 @@ public class PostDto {
     private Boolean liked = false;
 
     @Schema(description = "[응답] 좋아요 누른 유저 리스트")
-    private List<WalkieDto> liker;
+    private List<WalkieDto> likers = new ArrayList<>();
 
     @Schema(description = "[응답] 사진파일 URI")
     private String photo;
@@ -44,12 +44,26 @@ public class PostDto {
     @Schema(description = "[응답] 기록 데이터")
     private String historyContent;
 
+    @QueryProjection
+    public PostDto(Post post, Long viewerId, List<WalkieDto> liker) {
+        this.viewerId = viewerId;
+        this.poster = new WalkieDto(post.getUser());
+        this.postId = post.getPostId();
+        this.liked = liker.stream().map(WalkieDto::getWalkieId).anyMatch(id -> id.longValue() == viewerId.longValue());
+        this.likers = liker;
+        this.photo = post.getPhoto();
+        this.content = post.getContent();
+        this.date = post.getDate();
+        this.colorMode = post.getColorMode();
+        this.historyContent = post.getHistoryContent();
+    }
+
     @QueryProjection
     public PostDto(Post post, Long viewerId) {
         this.viewerId = viewerId;
-        this.posterId = post.getUser().getUserId();
+        this.poster = new WalkieDto(post.getUser());
         this.postId = post.getPostId();
-        this.liker = post.getLiker().stream().map(WalkieDto::new).collect(Collectors.toList());
+        this.liked = likers.stream().map(WalkieDto::getWalkieId).anyMatch(id -> id.longValue() == viewerId.longValue());
         this.photo = post.getPhoto();
         this.content = post.getContent();
         this.date = post.getDate();

diff --git a/src/main/java/com/whyranoid/walkie/repository/querydsl/PostRepositoryCustom.java b/src/main/java/com/whyranoid/walkie/repository/querydsl/PostRepositoryCustom.java
@@ -10,4 +10,6 @@ public interface PostRepositoryCustom {
     List<PostDto> findCurrentPosts(JPQLQuery<Long> following, Long viewerId, Integer pagingSize, Integer pagingStart);
 
     List<PostDto> findMyPosts(Long viewerId, Integer pagingSize, Integer pagingStart);
+
+    Long findPostId(String photo, String date);
 }
diff --git a/src/main/java/com/whyranoid/walkie/repository/querydsl/PostRepositoryImpl.java b/src/main/java/com/whyranoid/walkie/repository/querydsl/PostRepositoryImpl.java
@@ -5,42 +5,62 @@
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import com.whyranoid.walkie.dto.PostDto;
 import com.whyranoid.walkie.dto.QPostDto;
+import com.whyranoid.walkie.dto.QWalkieDto;
 import lombok.RequiredArgsConstructor;
 
+import java.util.ArrayList;
 import java.util.List;
 
+import static com.querydsl.core.group.GroupBy.groupBy;
+import static com.querydsl.core.group.GroupBy.list;
 import static com.whyranoid.walkie.domain.QPost.post;
+import static com.whyranoid.walkie.domain.QPostLike.postLike;
+import static com.whyranoid.walkie.domain.QWalkie.walkie;
 
 @RequiredArgsConstructor
 public class PostRepositoryImpl implements PostRepositoryCustom {
 
     private final JPAQueryFactory queryFactory;
 
-    // TODO: 나의 좋아요 여부 반영
-    // TODO: 좋아요 누른 사람 목록 반영
     @Override
     public List<PostDto> findCurrentPosts(JPQLQuery<Long> following, Long viewerId, Integer pagingSize, Integer pagingStart) {
-        return queryFactory
-                .select(new QPostDto(post, Expressions.asNumber(viewerId)))
+        return new ArrayList<>(queryFactory
                 .from(post)
                 .where(post.user.userId.in(following))
                 .orderBy(post.date.desc())
                 .offset(pagingStart)
                 .limit(pagingSize)
-                .fetch();
+                .leftJoin(postLike).on(postLike.post.postId.eq(post.postId))
+                .join(walkie).on(walkie.userId.eq(postLike.liker.userId))
+                .transform(groupBy(post.postId).as(new QPostDto(
+                        post,
+                        Expressions.asNumber(viewerId),
+                        list(new QWalkieDto(walkie))
+                ))).values());
     }
 
-    // TODO: 나의 좋아요 여부 반영
-    // TODO: 좋아요 누른 사람 목록 반영
     @Override
     public List<PostDto> findMyPosts(Long viewerId, Integer pagingSize, Integer pagingStart) {
-        return queryFactory
-                .select(new QPostDto(post, Expressions.asNumber(viewerId)))
+        return new ArrayList<>(queryFactory
                 .from(post)
                 .where(post.user.userId.eq(viewerId))
                 .orderBy(post.date.desc())
                 .offset(pagingStart)
                 .limit(pagingSize)
-                .fetch();
+                .leftJoin(postLike).on(postLike.post.postId.eq(post.postId))
+                .join(walkie).on(walkie.userId.eq(postLike.liker.userId))
+                .transform(groupBy(post.postId).as(new QPostDto(
+                        post,
+                        Expressions.asNumber(viewerId),
+                        list(new QWalkieDto(walkie))
+                ))).values());
+    }
+
+    @Override
+    public Long findPostId(String photo, String date) {
+        return queryFactory
+                .select(post.postId)
+                .where(post.photo.eq(photo).and(post.date.eq(date)))
+                .fetchOne();
     }
 }
diff --git a/src/main/java/com/whyranoid/walkie/service/CommunityService.java b/src/main/java/com/whyranoid/walkie/service/CommunityService.java
@@ -56,6 +56,15 @@ public ApiResponse uploadPost(MultipartFile image, Long walkieId, String content
         uploadImage(image, imageUrl);
         post.setPhoto(ApiBaseUrlSingleton.getInstance().getBaseUrl()+ '/' + imageUrl);
         communityRepository.uploadPost(post);
+
+        // TODO: 셀프좋아요 하지 않아도 되도록 게시글 조회 쿼리 수정
+        PostLikeDto selfLike = PostLikeDto.builder()
+                        .likerId(walkieId)
+                        .postId(postRepository.findPostId(post.getPhoto(), post.getDate()))
+                        .build();
+
+        sendPostLike(selfLike);
+
         return ApiResponse.builder()
                 .status(200)
                 .message("게시글 업로드 완료!")