게시글 상세 조회 기능 구현 (#186)

* feat: (#174) 게시글 상세 조회 기능 Dto 구현

* feat: (#174) 게시글 상세 조회 기능 구현 (아직 Post content의 imageUrl 필드는 추가 못함)

* refactor: (#174) response dto에 Post content의 imageUrl 필드 추가

* refactor: (#174) 게시글 내용의 이미지 데이터 처리 로직 추가

* refactor: (#174) dto 관련 클래스들을 패키지로 나누기

* refactor: (#174) 이미 tostring이 있는 record에서 tostring 삭제

* refactor: (#174) stream() 코드를 더 가독성이 높게 하나의 메서드마다 개행을 해주는 것으로 변경

* refactor: (#174) 게시글 작성자가 아닐 시, 상세조회 예외 처리 기능 구현

* refactor: (#174) 로그인 한 회원의 변수명 통일

* refactor: (#174) contentImages가 있는지 확인하는 메서드 명 개선

* refactor: (#174) null 체크 메서드를 isNull에서 nonNull로 개선

* refactor: (#174) 페이징 제외한 원시 타입을 래퍼 클래스로 원복

* refactor: (#174) 출력문 제서

backend/src/main/java/com/votogether/domain/post/controller/PostController.java

@@ -3,7 +3,8 @@
 import com.votogether.domain.member.entity.Member;
 import com.votogether.domain.post.dto.request.PostCreateRequest;
 import com.votogether.domain.post.dto.response.PostResponse;
-import com.votogether.domain.post.dto.response.VoteOptionStatisticsResponse;
+import com.votogether.domain.post.dto.response.detail.PostDetailResponse;
+import com.votogether.domain.post.dto.response.vote.VoteOptionStatisticsResponse;
 import com.votogether.domain.post.entity.PostClosingType;
 import com.votogether.domain.post.entity.PostSortType;
 import com.votogether.domain.post.service.PostService;
@@ -37,15 +38,15 @@ public class PostController {
 
  @Operation(summary = "게시글 작성", description = "게시글을 저장한다.")
  @ApiResponses(value = {
- @ApiResponse(responseCode = "201", description = "게시물 생성되었습니다."),
+ @ApiResponse(responseCode = "201", description = "게시글 생성 성공"),
  @ApiResponse(responseCode = "400", description = "잘못된 입력입니다.")
  })
  @PostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
  public ResponseEntity<Void> save(
  @RequestPart @Valid final PostCreateRequest request,
  @RequestPart(required = false) final List<MultipartFile> contentImages,
  @RequestPart final List<MultipartFile> optionImages,
- @Auth final Member loginMember
+ @Auth final Member member
  ) {
  System.out.println("PostController.save");
 
@@ -59,28 +60,42 @@ public ResponseEntity<Void> save(
  System.out.println("optionImages1 = " + optionImages.get(0).getOriginalFilename());
  System.out.println("optionImages2 = " + optionImages.get(1).getOriginalFilename());
  }
- final long postId = postService.save(request, loginMember, contentImages, optionImages);
+ final long postId = postService.save(request, member, contentImages, optionImages);
  return ResponseEntity.created(URI.create("/posts/" + postId)).build();
  }
 
  @Operation(summary = "전체 게시글 조회", description = "게시글을 조회한다.")
  @ApiResponses(value = {
- @ApiResponse(responseCode = "200", description = "게시글을 조회했습니다."),
+ @ApiResponse(responseCode = "200", description = "게시글 조회 성공"),
  @ApiResponse(responseCode = "400", description = "잘못된 입력입니다.")
  })
  @GetMapping
  public ResponseEntity<List<PostResponse>> getAllPost(
  final int page,
  final PostClosingType postClosingType,
  final PostSortType postSortType,
- @Auth final Member loginMember
+ @Auth final Member member
  ) {
  final List<PostResponse> responses =
- postService.getAllPostBySortTypeAndClosingType(loginMember, page, postClosingType, postSortType);
+ postService.getAllPostBySortTypeAndClosingType(member, page, postClosingType, postSortType);
 
  return ResponseEntity.ok(responses);
  }
 
+ @Operation(summary = "게시글 상세 조회", description = "한 게시글의 상세를 조회한다.")
+ @ApiResponses(value = {
+ @ApiResponse(responseCode = "200", description = "게시글 조회 성공"),
+ @ApiResponse(responseCode = "404", description = "존재하지 않는 게시글")
+ })
+ @GetMapping("{postId}")
+ public ResponseEntity<PostDetailResponse> getPost(
+ @PathVariable final Long postId,
+ @Auth final Member member
+ ) {
+ final PostDetailResponse response = postService.getPostById(postId, member);
+ return ResponseEntity.ok(response);
+ }
+
  @Operation(summary = "게시글 투표 통계 조회", description = "게시글 투표에 대한 전체 통계를 조회한다.")
  @ApiResponses({
  @ApiResponse(responseCode = "200", description = "게시글 투표 통계 조회 성공"),

backend/src/main/java/com/votogether/domain/post/dto/response/CategoryResponse.java

@@ -3,19 +3,12 @@
 import com.votogether.domain.category.entity.Category;
 
 public record CategoryResponse(
- long id,
+ Long id,
  String name
 ) {
 
  public static CategoryResponse of(Category category) {
  return new CategoryResponse(category.getId(), category.getName());
  }
 
- @Override
- public String toString() {
- return "CategoryResponse{" +
- "id=" + id +
- ", name='" + name + '\'' +
- '}';
- }
 }

backend/src/main/java/com/votogether/domain/post/dto/response/PostOptionResponse.java

@@ -3,10 +3,10 @@
 import com.votogether.domain.post.entity.PostOption;
 
 public record PostOptionResponse(
- long optionId,
+ Long optionId,
  String content,
- int voteCount,
- double votePercent
+ Integer voteCount,
+ Double votePercent
 ) {
 
  public static PostOptionResponse of(
@@ -22,14 +22,4 @@ public static PostOptionResponse of(
  );
  }
 
- @Override
- public String toString() {
- return "OptionResponse{" +
- "optionId=" + optionId +
- ", content='" + content + '\'' +
- ", voteCount=" + voteCount +
- ", votePercent=" + votePercent +
- '}';
- }
-
 }

backend/src/main/java/com/votogether/domain/post/dto/response/PostResponse.java

@@ -2,6 +2,7 @@
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.votogether.domain.member.entity.Member;
+import com.votogether.domain.post.dto.response.vote.VoteResponse;
 import com.votogether.domain.post.entity.Post;
 import com.votogether.domain.post.entity.PostBody;
 import com.votogether.domain.post.entity.PostCategory;
@@ -47,7 +48,9 @@ public static PostResponse of(final Post post, final Member loginMember) {
  }
 
  private static List<CategoryResponse> getCategories(final Post post) {
- return post.getPostCategories().getPostCategories().stream()
+ return post.getPostCategories()
+ .getPostCategories()
+ .stream()
  .map(PostCategory::getCategory)
  .map(CategoryResponse::of)
  .toList();
@@ -57,7 +60,9 @@ private static List<PostOptionResponse> getOptions(
  final Post post,
  final Member loginMember
  ) {
- return post.getPostOptions().getPostOptions().stream()
+ return post.getPostOptions()
+ .getPostOptions()
+ .stream()
  .map(postOption ->
  PostOptionResponse.of(
  postOption,
@@ -68,18 +73,4 @@ private static List<PostOptionResponse> getOptions(
  .toList();
  }
 
- @Override
- public String toString() {
- return "PostResponse{" +
- "postId=" + postId +
- ", writer=" + writer +
- ", title='" + title + '\'' +
- ", content='" + content + '\'' +
- ", categories=" + categories +
- ", createdAt=" + createdAt +
- ", deadline=" + deadline +
- ", voteInfo=" + voteInfo +
- '}' + "\n\n";
- }
-
 }

backend/src/main/java/com/votogether/domain/post/dto/response/WriterResponse.java

@@ -9,12 +9,4 @@ public static WriterResponse of(final Long id, final String nickname) {
  return new WriterResponse(id, nickname);
  }
 
- @Override
- public String toString() {
- return "WriterResponse{" +
- "id=" + id +
- ", nickname='" + nickname + '\'' +
- '}';
- }
-
 }

backend/src/main/java/com/votogether/domain/post/dto/response/detail/PostDetailResponse.java

@@ -0,0 +1,76 @@
+package com.votogether.domain.post.dto.response.detail;
+
+import com.votogether.domain.member.entity.Member;
+import com.votogether.domain.post.dto.response.CategoryResponse;
+import com.votogether.domain.post.dto.response.WriterResponse;
+import com.votogether.domain.post.entity.Post;
+import com.votogether.domain.post.entity.PostBody;
+import com.votogether.domain.post.entity.PostCategories;
+import com.votogether.domain.post.entity.PostCategory;
+import com.votogether.domain.post.entity.PostContentImage;
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record PostDetailResponse(
+ Long postId,
+ WriterResponse writer,
+ String title,
+ String content,
+ String imageUrl,
+ List<CategoryResponse> categories,
+ LocalDateTime createdAt,
+ LocalDateTime deadline,
+ VoteDetailResponse voteInfo
+) {
+
+ public static PostDetailResponse of(final Post post, final Member loginMember) {
+ final Member writer = post.getWriter();
+ final PostBody postBody = post.getPostBody();
+ final List<PostContentImage> contentImages = postBody.getPostContentImages().getContentImages();
+ final StringBuilder contentImageUrl = new StringBuilder();
+
+ if (!contentImages.isEmpty()) {
+ contentImageUrl.append(contentImages.get(0).getImageUrl());
+ }
+
+ final PostCategories postCategories = post.getPostCategories();
+ return new PostDetailResponse(
+ post.getId(),
+ WriterResponse.of(writer.getId(), writer.getNickname()),
+ postBody.getTitle(),
+ postBody.getContent(),
+ contentImageUrl.toString(),
+ getCategories(postCategories.getPostCategories()),
+ post.getCreatedAt(),
+ post.getDeadline(),
+ VoteDetailResponse.of(
+ post.getPostOptions().getSelectedOptionId(loginMember),
+ post.getFinalTotalVoteCount(loginMember),
+ getOptions(post, loginMember)
+ )
+ );
+ }
+
+ private static List<CategoryResponse> getCategories(final List<PostCategory> postCategories) {
+ return postCategories.stream()
+ .map(PostCategory::getCategory)
+ .map(CategoryResponse::of)
+ .toList();
+ }
+
+ private static List<PostOptionDetailResponse> getOptions(
+ final Post post,
+ final Member loginMember
+ ) {
+ return post.getPostOptions().getPostOptions().stream()
+ .map(postOption ->
+ PostOptionDetailResponse.of(
+ postOption,
+ post.isVisibleVoteResult(loginMember),
+ post.getFinalTotalVoteCount(loginMember)
+ )
+ )
+ .toList();
+ }
+
+}

backend/src/main/java/com/votogether/domain/post/dto/response/detail/PostOptionDetailResponse.java

@@ -0,0 +1,27 @@
+package com.votogether.domain.post.dto.response.detail;
+
+import com.votogether.domain.post.entity.PostOption;
+
+public record PostOptionDetailResponse(
+ Long optionId,
+ String content,
+ String imageUrl,
+ Integer voteCount,
+ Double votePercent
+) {
+
+ public static PostOptionDetailResponse of(
+ final PostOption postOption,
+ final Boolean isVisibleVoteResult,
+ final Long totalVoteCount
+ ) {
+ return new PostOptionDetailResponse(
+ postOption.getId(),
+ postOption.getContent(),
+ postOption.getImageUrl(),
+ postOption.getVoteCount(isVisibleVoteResult),
+ postOption.getVotePercent(totalVoteCount)
+ );
+ }
+
+}

backend/src/main/java/com/votogether/domain/post/dto/response/detail/VoteDetailResponse.java

@@ -0,0 +1,19 @@
+package com.votogether.domain.post.dto.response.detail;
+
+import java.util.List;
+
+public record VoteDetailResponse(
+ Long selectedOptionId,
+ Long totalVoteCount,
+ List<PostOptionDetailResponse> options
+) {
+
+ public static VoteDetailResponse of(
+ final long selectedOptionId,
+ final long finalTotalVoteCount,
+ final List<PostOptionDetailResponse> options
+ ) {
+ return new VoteDetailResponse(selectedOptionId, finalTotalVoteCount, options);
+ }
+
+}

backend/src/main/java/com/votogether/domain/post/dto/response/VoteCountForAgeGroupResponse.java → backend/src/main/java/com/votogether/domain/post/dto/response/vote/VoteCountForAgeGroupResponse.java

@@ -1,4 +1,4 @@
-package com.votogether.domain.post.dto.response;
+package com.votogether.domain.post.dto.response.vote;
 
 import com.votogether.domain.member.entity.Gender;
 import java.util.Map;

backend/src/main/java/com/votogether/domain/post/dto/response/VoteOptionStatisticsResponse.java → backend/src/main/java/com/votogether/domain/post/dto/response/vote/VoteOptionStatisticsResponse.java

@@ -1,4 +1,4 @@
-package com.votogether.domain.post.dto.response;
+package com.votogether.domain.post.dto.response.vote;
 
 import com.votogether.domain.member.entity.Gender;
 import java.util.Arrays;

backend/src/main/java/com/votogether/domain/post/dto/response/VoteResponse.java → backend/src/main/java/com/votogether/domain/post/dto/response/vote/VoteResponse.java

@@ -1,5 +1,6 @@
-package com.votogether.domain.post.dto.response;
+package com.votogether.domain.post.dto.response.vote;
 
+import com.votogether.domain.post.dto.response.PostOptionResponse;
 import java.util.List;
 
 public record VoteResponse(