feat: 게시글 좋아요 기능 - #64

aaahyunseo · Aug 18, 2024 · 298c6c4 · 298c6c4
2 parents a4b211c + acf0921
commit 298c6c4
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Showing 9 changed files with 136 additions and 9 deletions.
diff --git a/src/main/java/com/example/swcompetitionproject/controller/BoardController.java b/src/main/java/com/example/swcompetitionproject/controller/BoardController.java
@@ -25,7 +25,7 @@ public class BoardController {
     //게시글 전체 조회
     @GetMapping
     public ResponseEntity<ResponseDto<BoardListData>> getBoardList(@AuthenticatedUser User user, @RequestParam(value = "dormitory") String dormitory) {
-        BoardListData boardListData = boardService.getBoardList(dormitory);
+        BoardListData boardListData = boardService.getBoardList(user, dormitory);
         return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "게시글 목록 조회 완료", boardListData), HttpStatus.OK);
     }
 
@@ -64,5 +64,26 @@ public ResponseEntity<ResponseDto<Void>> deleteBoard(@RequestParam(value = "dorm
         boardService.deleteBoard(dormitory, boardId, user);
         return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "게시글 삭제 완료"), HttpStatus.OK);
     }
+
+    // 게시글 좋아요 등록
+    @PostMapping("/{boardId}/like")
+    public ResponseEntity<ResponseDto<Void>> likeBoard(@AuthenticatedUser User user, @PathVariable UUID boardId) {
+        boardService.likeBoard(user, boardId);
+        return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "게시글 좋아요 등록 완료"), HttpStatus.OK);
+    }
+
+    // 게시글 좋아요 삭제
+    @DeleteMapping("/{boardId}/like")
+    public ResponseEntity<ResponseDto<Void>> unlikeBoard(@AuthenticatedUser User user, @PathVariable UUID boardId) {
+        boardService.unlikeBoard(user, boardId);
+        return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "게시글 좋아요 삭제 완료"), HttpStatus.OK);
+    }
+
+    // 사용자가 좋아요를 누른 게시글 목록 조회
+    @GetMapping("/likes")
+    public ResponseEntity<ResponseDto<BoardListData>> getLikedBoards(@AuthenticatedUser User user) {
+        BoardListData interestListData = boardService.getLikedBoards(user);
+        return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "좋아요한 게시글 목록 조회 완료", interestListData), HttpStatus.OK);
+    }
 }
 
diff --git a/...main/java/com/example/swcompetitionproject/dto/response/board/BoardDetailResponseDto.java b/...main/java/com/example/swcompetitionproject/dto/response/board/BoardDetailResponseDto.java
@@ -20,9 +20,10 @@ public class BoardDetailResponseDto {
     private int current;
     private int total;
     private GenderType gender;
+    private boolean like;
     private String createdAt;
 
-    public static BoardDetailResponseDto from(Board board){
+    public static BoardDetailResponseDto of(Boolean isLike, Board board){
         return BoardDetailResponseDto.builder()
                 .id(board.getId())
                 .title(board.getTitle())
@@ -33,6 +34,7 @@ public static BoardDetailResponseDto from(Board board){
                 .current(board.getChattingRoom().getMemberCount())
                 .total(board.getTotal())
                 .gender(board.getUser().getGender())
+                .like(isLike)
                 .createdAt(board.getCreatedAt().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm")))
                 .build();
     }

diff --git a/src/main/java/com/example/swcompetitionproject/dto/response/board/BoardListData.java b/src/main/java/com/example/swcompetitionproject/dto/response/board/BoardListData.java
@@ -1,6 +1,8 @@
 package com.example.swcompetitionproject.dto.response.board;
 
 import com.example.swcompetitionproject.entity.Board;
+import com.example.swcompetitionproject.entity.User;
+import com.example.swcompetitionproject.repository.InterestRepository;
 import lombok.Builder;
 import lombok.Getter;
 
@@ -12,11 +14,23 @@
 public class BoardListData {
     private List<BoardDetailResponseDto> boardDtoList;
 
+    public static BoardListData of(List<Board> boards, User user, InterestRepository interestRepository) {
+        return BoardListData.builder()
+                .boardDtoList(
+                        boards.stream()
+                                .map(board -> {
+                                    boolean isLiked = interestRepository.existsByUserAndBoard(user, board);
+                                    return BoardDetailResponseDto.of(isLiked, board);
+                                })
+                                .collect(Collectors.toList()))
+                .build();
+    }
+
     public static BoardListData from(List<Board> boards) {
         return BoardListData.builder()
                 .boardDtoList(
                         boards.stream()
-                                .map(BoardDetailResponseDto::from)
+                                .map(board -> BoardDetailResponseDto.of(true, board))
                                 .collect(Collectors.toList()))
                 .build();
     }

diff --git a/src/main/java/com/example/swcompetitionproject/entity/Board.java b/src/main/java/com/example/swcompetitionproject/entity/Board.java
@@ -40,6 +40,9 @@ public class Board extends BaseEntity {
     @Setter
     private List<BoardCategory> boardCategories;
 
+    @OneToMany(mappedBy = "board", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<Interest> interests;
+
     public Board setContent(String content){
         this.content = content;
         return this;

diff --git a/src/main/java/com/example/swcompetitionproject/entity/Interest.java b/src/main/java/com/example/swcompetitionproject/entity/Interest.java
@@ -0,0 +1,23 @@
+package com.example.swcompetitionproject.entity;
+
+import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+@Table(name = "interests")
+public class Interest extends BaseEntity{
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "board_id")
+    private Board board;
+}
diff --git a/src/main/java/com/example/swcompetitionproject/entity/User.java b/src/main/java/com/example/swcompetitionproject/entity/User.java
@@ -41,6 +41,9 @@ public class User extends BaseEntity {
     @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<UserRoom> userRooms;
 
+    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<Interest> interests;
+
     public User setName(String name){
         this.name = name;
         return this;

diff --git a/src/main/java/com/example/swcompetitionproject/exception/ErrorCode.java b/src/main/java/com/example/swcompetitionproject/exception/ErrorCode.java
@@ -14,6 +14,7 @@ public enum ErrorCode {
     INVALID_DORMITORY("4012", "유효하지 않은 기숙사입니다."),
     INVALID_GENDER("4013", "유효하지 않은 성별입니다."),
     ROOM_FULL("4014", "채팅방 인원이 가득찼습니다."),
+    ALREADY_LIKED("4015","이미 좋아요를 눌렀습니다."),
 
     //ForbiddenException
     NO_ACCESS("4030", "접근 권한이 없습니다."),
@@ -25,6 +26,7 @@ public enum ErrorCode {
     ROOM_NOT_FOUND("4042", "방을 찾을 수 없습니다."),
     BOARD_NOT_FOUND("4043", "게시글을 찾을 수 없습니다."),
     CATEGORY_NOT_FOUND("4044", "카테고리를 찾을 수 없습니다"),
+    LIKE_NOT_FOUND("4045","좋아요를 찾을 수 없습니다."),
 
     //ConflictException
 

diff --git a/src/main/java/com/example/swcompetitionproject/repository/InterestRepository.java b/src/main/java/com/example/swcompetitionproject/repository/InterestRepository.java
@@ -0,0 +1,19 @@
+package com.example.swcompetitionproject.repository;
+
+import com.example.swcompetitionproject.entity.Board;
+import com.example.swcompetitionproject.entity.Interest;
+import com.example.swcompetitionproject.entity.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+public interface InterestRepository extends JpaRepository<Interest, UUID> {
+    boolean existsByUserAndBoard(User user, Board board);
+    Optional<Interest> findByUserAndBoard(User user, Board board);
+    @Query("SELECT i.board FROM Interest i WHERE i.user = :user")
+    List<Board> findBoardsByUser(@Param("user") User user);
+}
diff --git a/src/main/java/com/example/swcompetitionproject/service/BoardService.java b/src/main/java/com/example/swcompetitionproject/service/BoardService.java
@@ -4,15 +4,13 @@
 import com.example.swcompetitionproject.dto.request.board.UpdateBoardDto;
 import com.example.swcompetitionproject.dto.response.board.BoardData;
 import com.example.swcompetitionproject.dto.response.board.BoardListData;
-import com.example.swcompetitionproject.entity.Board;
-import com.example.swcompetitionproject.entity.BoardCategory;
-import com.example.swcompetitionproject.entity.DormitoryType;
-import com.example.swcompetitionproject.entity.User;
+import com.example.swcompetitionproject.entity.*;
 import com.example.swcompetitionproject.exception.ErrorCode;
 import com.example.swcompetitionproject.exception.ForbiddenException;
 import com.example.swcompetitionproject.exception.NotFoundException;
 import com.example.swcompetitionproject.exception.UnauthorizedException;
 import com.example.swcompetitionproject.repository.BoardRepository;
+import com.example.swcompetitionproject.repository.InterestRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -26,15 +24,16 @@
 public class BoardService {
     private final BoardRepository boardRepository;
     private final ChattingService chattingService;
+    private final InterestRepository interestRepository;
 
     /**
      * 게시글 전체 조회
      **/
     @Transactional
-    public BoardListData getBoardList(String dormitory) {
+    public BoardListData getBoardList(User user, String dormitory) {
         DormitoryType dormitoryType = dormitoryNameValidate(dormitory);
         List<Board> boards = boardRepository.findAllByDormitoryOrderByCreatedAtDesc(dormitoryType);
-        return BoardListData.from(boards);
+        return BoardListData.of(boards, user, interestRepository);
     }
 
     /**
@@ -114,6 +113,47 @@ public void deleteBoard(String dormitory, UUID boardId, User user) {
         chattingService.deleteRoom(board);
     }
 
+    /**
+     * 게시글 좋아요 등록
+     **/
+    @Transactional
+    public void likeBoard(User user, UUID boardId) {
+        Board board = boardRepository.findById(boardId)
+                .orElseThrow(() -> new NotFoundException(ErrorCode.BOARD_NOT_FOUND));
+        //이미 좋아요를 누른 게시물
+        if (interestRepository.existsByUserAndBoard(user, board)) {
+            throw new UnauthorizedException(ErrorCode.ALREADY_LIKED);
+        }
+
+        Interest like = Interest.builder()
+                .user(user)
+                .board(board)
+                .build();
+        interestRepository.save(like);
+    }
+
+    /**
+     * 게시글 좋아요 삭제
+     **/
+    @Transactional
+    public void unlikeBoard(User user, UUID boardId) {
+        Board board = boardRepository.findById(boardId)
+                .orElseThrow(() -> new NotFoundException(ErrorCode.BOARD_NOT_FOUND));
+        Interest like = interestRepository.findByUserAndBoard(user, board)
+                .orElseThrow(() -> new NotFoundException(ErrorCode.LIKE_NOT_FOUND));
+
+        interestRepository.delete(like);
+    }
+
+    /**
+     * 관심 게시글 조회
+     **/
+    @Transactional
+    public BoardListData getLikedBoards(User user) {
+        List<Board> likedBoards = interestRepository.findBoardsByUser(user);
+        return BoardListData.from(likedBoards);
+    }
+
     /**
      * 접근 유저의 게시글 권한 확인
      **/