Blog-v3(리팩토링), 댓글기능

1. boardPackage

1. BoardController

@GetMapping("/v2/api/board/{id}/update-form")
    public @ResponseBody BoardResponse.DTO updateForm(@PathVariable("id") int id) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        BoardResponse.DTO model = boardService.게시글수정화면V2(id, sessionUser);
        return model;
    }

• 코드 설명

@GetMapping("/v2/board/{id}")
    public @ResponseBody BoardResponse.DetailDTO detailV2(@PathVariable("id") Integer id){
        User sessionUser = (User) session.getAttribute("sessionUser");

        BoardResponse.DetailDTO model = boardService.게시글상세보기(sessionUser, id);

        return model;
    }
    
    @GetMapping("/v3/board/{id}")
    public @ResponseBody Board detailV3(@PathVariable("id") Integer id) {
        User sessionUser = (User) session.getAttribute("sessionUser");

        Board model = boardService.게시글상세보기V3(sessionUser, id);

        return model;
    }

• 코드설명

2. BoardResponse

@Data
    public static class DTO {
        private Integer id;
        private String title;
        private String content;

        public DTO(Board board) {
            this.id = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();
        }
    }

• 코드설명

 @Data
    public static class DetailDTO {

        private Integer id;
        private String title;
        private String content;
        private Boolean isOwner;

        private String username;

        //댓글들이 들어와야한다.
        private List<ReplyDTO> replies = new ArrayList<>();



        public DetailDTO(Board board, User sessionUser) {
            this.id = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();
            this.isOwner = false;

            if (sessionUser != null) {
                if (board.getUser().getId() == sessionUser.getId()) {
                    isOwner = true; // 권한체크

                }
            }
            this.username = board.getUser().getUsername();

            for (Reply reply : board.getReplies()) {
                replies.add(new ReplyDTO(reply, sessionUser));
            }
        }
    }

• 코드설명

for (Reply reply : board.getReplies()) {
    replies.add(new ReplyDTO(reply, sessionUser));
}

@Data
    public static class ReplyDTO{

        private Integer id;
        private String content;
        private boolean isOwner;
        private String username;

        public ReplyDTO(Reply reply, User sesstionUser) {
            this.id = reply.getId();
            this.content = reply.getComment();
            this.username = reply.getUser().getUsername();
            this.isOwner = false;


            if (sesstionUser != null) {
                if (reply.getUser().getId() == sesstionUser.getId()) {
                    isOwner = true; //권한체크
                }
            }

• 코드설명

3. BoardService

public BoardResponse.DTO 게시글수정화면V2(int id, User sessionUser) {
        Board board = boardRepository.findById(id)
                .orElseThrow(()-> new Exception404("게시글을 찾을 수 없습니다"));

        if (board.getUser().getId() != sessionUser.getId()) {
            throw new Exception403("게시글 수정 권한이 없습니다.");
        }
        return new BoardResponse.DTO(board);
    }

 public Board 게시글상세보기V3(User sessionUser, Integer boardId){
        Board boardPS = boardRepository.mFindByIdWithReply(boardId)
                .orElseThrow(() -> new Exception404("게시글이 없습니다."));
        return boardPS;
    }

• 코드설명

4. detail.mustach

{{>layout/header}}

<div class="container p-5">

    <!-- 수정삭제버튼 -->
        {{#model.isOwner}}
        <div class="d-flex justify-content-end">
            <a href="/api/board/{{model.id}}/update-form" class="btn btn-warning me-1">수정</a>
            <form action="/api/board/{{model.id}}/delete" method="post">
                <button class="btn btn-danger">삭제</button>
            </form>
        </div>
        {{/model.isOwner}}

    <div class="d-flex justify-content-end">
        <!-- 컬렉션이면 user로 만들어야한다.-->
            <b>작성자</b> : {{model.username}}
    </div>

    <!-- 게시글내용 -->
    <div>
        <h2><b>{{model.title}}</b></h2>
        <hr/>
        <div class="m-4 p-2">
            {{{model.content}}}
        </div>
    </div>
    <!-- 댓글 -->
    <div class="card mt-3">
        <!-- 댓글등록 -->
        <div class="card-body">
            <form action="/reply/save" method="post">

                <textarea class="form-control" rows="2" name="comment"></textarea>
                <div class="d-flex justify-content-end">
                    <button type="submit" class="btn btn-outline-primary mt-1">댓글등록</button>
                </div>
            </form>
        </div>

        <!-- 댓글목록 -->
        <div class="card-footer">
            <b>댓글리스트</b>
        </div>
        <div class="list-group">
                {{#model.replies}}


                <!-- 댓글아이템 -->
                <div class="list-group-item d-flex justify-content-between align-items-center">
                    <div class="d-flex">
                        <div class="px-1 me-1 bg-primary text-white rounded">{{username}}</div>
                        <div>{{comment}}</div>
                    </div>
                        {{#isOwner}}
                        <form action="#" method="post">
                            <button class="btn">🗑</button>
                        </form>
                        {{/isOwner}}
                </div>
                {{/model.replies}}
        </div>
    </div>



</div>

{{>layout/footer}}

• 코드설명