[api] 타인 게시글 목록 가져오기, 내 게시글 목록 가져오기

src/main/java/com/whyranoid/walkie/controller/CommunityController.java

@@ -1,18 +1,21 @@
 package com.whyranoid.walkie.controller;
 
 import com.google.firebase.auth.FirebaseAuthException;
+import com.whyranoid.walkie.dto.PostDto;
 import com.whyranoid.walkie.dto.PostLikeDto;
 import com.whyranoid.walkie.service.CommunityService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -22,6 +25,7 @@
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.IOException;
+import java.util.List;
 
 @Tag(name = "community", description = "커뮤니티 API")
 @RestController
@@ -53,10 +57,23 @@ public ResponseEntity uploadPost(
 
     @Operation(summary = "게시글에 좋아요 누르기")
     @ApiResponse(responseCode = "200", content = @Content(schema = @Schema(implementation = PostLikeDto.class)),
-            description = "성공 시 요청에 게시글의 현재 좋아요 수를 넣어 반환, 중복 좋아요 시 좋아요 수에 -1을 넣어 반환, 실패 시 예외발생")
+            description = "성공 시 요청에 게시글의 현재 좋아요 수를 넣어 반환, 중복 좋아요 시 좋아요를 삭제하고 likerCount에 -1을 넣어 반환, 실패 시 예외발생")
     @PostMapping("/send-like")
     public ResponseEntity<PostLikeDto> sendPostLike(@RequestBody PostLikeDto postLikeDto) {
         return ResponseEntity.ok(communityService.sendPostLike(postLikeDto));
     }
 
+    @Operation(summary = "게시글 불러오기", description = "팔로우하는 유저들의 게시글을 가져옵니다.")
+    @ApiResponse(responseCode = "200", content = @Content(array = @ArraySchema(schema = @Schema(implementation = PostDto.class))),
+            description = "팔로우하는 유저들의 게시글 정보 리스트를 반환")
+    @Parameters({
+            @Parameter(name = "walkieId", required = true, description = "유저 아이디", example = "123"),
+            @Parameter(name = "pagingSize", description = "페이징 사이즈", example = "30"),
+            @Parameter(name = "pagingStart", description = "페이징 오프셋", example = "0")
+    })
+    @GetMapping("/listup-post")
+    public ResponseEntity<List<PostDto>> getPostList(@RequestParam Long walkieId, @RequestParam(required = false) Integer pagingSize, @RequestParam(required = false) Integer pagingStart) {
+        return ResponseEntity.ok(communityService.getPostList(walkieId, pagingSize, pagingStart));
+    }
+
 }

src/main/java/com/whyranoid/walkie/controller/WalkieController.java

@@ -1,5 +1,6 @@
 package com.whyranoid.walkie.controller;
 
+import com.whyranoid.walkie.dto.PostDto;
 import com.whyranoid.walkie.dto.request.MyInfoRequest;
 import com.whyranoid.walkie.dto.request.WalkieSignUpRequest;
 import com.whyranoid.walkie.dto.response.MyInfoResponse;
@@ -8,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -21,6 +23,8 @@
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.List;
+
 @Tag(name = "WalkieController")
 @RequiredArgsConstructor
 @RequestMapping("/api/walkies")
@@ -73,4 +77,17 @@ public ResponseEntity<MyInfoResponse> changeMyInfo(@RequestParam Long walkieId,
                 walkieService.changeMyInfo(walkieId, myInfoRequest)
         );
     }
+
+    @Operation(summary = "나의 게시글 불러오기", description = "내가 작성한 게시글들을 가져옵니다.")
+    @ApiResponse(responseCode = "200", content = @Content(array = @ArraySchema(schema = @Schema(implementation = PostDto.class))),
+            description = "내가 작성한 게시글 정보 리스트를 반환")
+    @Parameters({
+            @Parameter(name = "walkieId", required = true, description = "유저 아이디", example = "123"),
+            @Parameter(name = "pagingSize", description = "페이징 사이즈", example = "30"),
+            @Parameter(name = "pagingStart", description = "페이징 오프셋", example = "0")
+    })
+    @GetMapping("/listup-my-post")
+    public ResponseEntity<List<PostDto>> getPostList(@RequestParam Long walkieId, @RequestParam(required = false) Integer pagingSize, @RequestParam(required = false) Integer pagingStart) {
+        return ResponseEntity.ok(walkieService.getMyPostList(walkieId, pagingSize, pagingStart));
+    }
 }

src/main/java/com/whyranoid/walkie/dto/PostDto.java

@@ -1,10 +1,15 @@
 package com.whyranoid.walkie.dto;
 
+import com.querydsl.core.annotations.QueryProjection;
+import com.whyranoid.walkie.domain.Post;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 public class PostDto {
@@ -19,12 +24,12 @@ public class PostDto {
     private Long postId;
 
     @Schema(description = "[응답] 좋아요 여부", example = "true")
-    private Boolean liked;
+    private Boolean liked = false;
 
-    @Schema(description = "[응답] 좋아요 개수", example = "36")
-    private Integer likeCount;
+    @Schema(description = "[응답] 좋아요 누른 유저 리스트")
+    private List<WalkieDto> liker;
 
-    @Schema(description = "[응답] 사진파일 URI", example = "")
+    @Schema(description = "[응답] 사진파일 URI")
     private String photo;
 
     @Schema(description = "[응답] 게시글 내용", example = "오운완.")
@@ -36,6 +41,19 @@ public class PostDto {
     @Schema(description = "[응답] 글씨색 설정", example = "0")
     private Integer colorMode;
 
-    @Schema(description = "[응답] 기록 데이터", example = "")
+    @Schema(description = "[응답] 기록 데이터")
     private String historyContent;
+
+    @QueryProjection
+    public PostDto(Post post, Long viewerId) {
+        this.viewerId = viewerId;
+        this.posterId = post.getUser().getUserId();
+        this.postId = post.getPostId();
+        this.liker = post.getLiker().stream().map(WalkieDto::new).collect(Collectors.toList());
+        this.photo = post.getPhoto();
+        this.content = post.getContent();
+        this.date = post.getDate();
+        this.colorMode = post.getColorMode();
+        this.historyContent = post.getHistoryContent();
+    }
 }

src/main/java/com/whyranoid/walkie/repository/PostRepository.java

@@ -1,11 +1,12 @@
 package com.whyranoid.walkie.repository;
 
 import com.whyranoid.walkie.domain.Post;
+import com.whyranoid.walkie.repository.querydsl.PostRepositoryCustom;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.Optional;
 
-public interface PostRepository extends JpaRepository<Post, Long> {
+public interface PostRepository extends JpaRepository<Post, Long>, PostRepositoryCustom {
 
     Optional<Post> findByPostId(Long postId);
 }

src/main/java/com/whyranoid/walkie/repository/querydsl/FollowRepositoryQuerydsl.java

@@ -1,5 +1,6 @@
 package com.whyranoid.walkie.repository.querydsl;
 
+import com.querydsl.jpa.JPQLQuery;
 import com.whyranoid.walkie.dto.FollowDto;
 import com.whyranoid.walkie.dto.WalkieDto;
 
@@ -17,4 +18,10 @@ public interface FollowRepositoryQuerydsl {
 
         List<WalkieDto> findWalkingFollwingList(Long walkieId);
 
+        List<WalkieDto> findFollowerList(Long whoseId, boolean isFollowing, JPQLQuery<Long> followIdList);
+
+        JPQLQuery<Long> findFollowerIdList(Long whoseId);
+
+        JPQLQuery<Long> findFollowedIdList(Long whoseId);
+
 }

src/main/java/com/whyranoid/walkie/repository/querydsl/PostRepositoryCustom.java

@@ -0,0 +1,13 @@
+package com.whyranoid.walkie.repository.querydsl;
+
+import com.querydsl.jpa.JPQLQuery;
+import com.whyranoid.walkie.dto.PostDto;
+
+import java.util.List;
+
+public interface PostRepositoryCustom {
+
+    List<PostDto> findCurrentPosts(JPQLQuery<Long> following, Long viewerId, Integer pagingSize, Integer pagingStart);
+
+    List<PostDto> findMyPosts(Long viewerId, Integer pagingSize, Integer pagingStart);
+}

src/main/java/com/whyranoid/walkie/repository/querydsl/PostRepositoryImpl.java

@@ -0,0 +1,46 @@
+package com.whyranoid.walkie.repository.querydsl;
+
+import com.querydsl.core.types.dsl.Expressions;
+import com.querydsl.jpa.JPQLQuery;
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import com.whyranoid.walkie.dto.PostDto;
+import com.whyranoid.walkie.dto.QPostDto;
+import lombok.RequiredArgsConstructor;
+
+import java.util.List;
+
+import static com.whyranoid.walkie.domain.QPost.post;
+
+@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)))
+                .from(post)
+                .where(post.user.userId.in(following))
+                .orderBy(post.date.desc())
+                .offset(pagingStart)
+                .limit(pagingSize)
+                .fetch();
+    }
+
+    // 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)))
+                .from(post)
+                .where(post.user.userId.eq(viewerId))
+                .orderBy(post.date.desc())
+                .offset(pagingStart)
+                .limit(pagingSize)
+                .fetch();
+    }
+}

src/main/java/com/whyranoid/walkie/service/CommunityService.java

@@ -8,9 +8,11 @@
 import com.whyranoid.walkie.domain.Post;
 import com.whyranoid.walkie.domain.PostLike;
 import com.whyranoid.walkie.domain.Walkie;
+import com.whyranoid.walkie.dto.PostDto;
 import com.whyranoid.walkie.dto.PostLikeDto;
 import com.whyranoid.walkie.dto.response.ApiResponse;
 import com.whyranoid.walkie.repository.CommunityRepository;
+import com.whyranoid.walkie.repository.FollowRepository;
 import com.whyranoid.walkie.repository.PostLikeRepository;
 import com.whyranoid.walkie.repository.PostRepository;
 import com.whyranoid.walkie.repository.WalkieRepository;
@@ -37,6 +39,7 @@ public class CommunityService {
     private final WalkieRepository walkieRepository;
     private final PostRepository postRepository;
     private final PostLikeRepository postLikeRepository;
+    private final FollowRepository followRepository;
 
     @Value("${app.firebase-bucket-name}")
     private String firebaseBucket;
@@ -94,4 +97,13 @@ public Long countPostLike(Long postId) {
 
         return postLikeRepository.findPostLikeCount(postId);
     }
+
+    public List<PostDto> getPostList(Long walkieId, Integer _pagingSize, Integer _pagingStart) {
+        Walkie walkie = walkieRepository.findById(walkieId).orElseThrow(EntityNotFoundException::new);
+
+        Integer pagingSize = _pagingSize == null ? 30 : _pagingSize;
+        Integer pagingStart = _pagingStart == null ? 0 : _pagingStart;
+
+        return postRepository.findCurrentPosts(followRepository.findFollowedIdList(walkieId), walkieId, pagingSize, pagingStart);
+    }
 }

src/main/java/com/whyranoid/walkie/service/WalkieService.java

@@ -2,23 +2,29 @@
 
 import com.whyranoid.walkie.domain.Agreement;
 import com.whyranoid.walkie.domain.Walkie;
+import com.whyranoid.walkie.dto.PostDto;
 import com.whyranoid.walkie.dto.request.MyInfoRequest;
 import com.whyranoid.walkie.dto.request.WalkieSignUpRequest;
 import com.whyranoid.walkie.dto.response.MyInfoResponse;
 import com.whyranoid.walkie.dto.response.WalkieSignUpResponse;
 import com.whyranoid.walkie.repository.AgreementRepository;
+import com.whyranoid.walkie.repository.PostRepository;
 import com.whyranoid.walkie.repository.WalkieRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import javax.persistence.EntityNotFoundException;
+import java.util.List;
+
 @Service
 @Transactional
 @RequiredArgsConstructor
 public class WalkieService {
 
     private final WalkieRepository walkieRepository;
     private final AgreementRepository agreementRepository;
+    private final PostRepository postRepository;
 
     public WalkieSignUpResponse joinWalkie(WalkieSignUpRequest walkieSignUpRequest) {
         if (checkNameDuplication(walkieSignUpRequest.getUserName())) {
@@ -77,4 +83,13 @@ public MyInfoResponse changeMyInfo(Long walkieId, MyInfoRequest myInfoRequest) {
                 .nickname(walkie.getUserName())
                 .build();
     }
+
+    public List<PostDto> getMyPostList(Long walkieId, Integer _pagingSize, Integer _pagingStart) {
+        Walkie walkie = walkieRepository.findById(walkieId).orElseThrow(EntityNotFoundException::new);
+
+        Integer pagingSize = _pagingSize == null ? 30 : _pagingSize;
+        Integer pagingStart = _pagingStart == null ? 0 : _pagingStart;
+
+        return postRepository.findMyPosts(walkieId, pagingSize, pagingStart);
+    }
 }