Third seminar 과제 제출

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/controller/post/PostController.java

@@ -0,0 +1,28 @@
+package sopt.org.ThirdSeminar.controller.post;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+import sopt.org.ThirdSeminar.common.dto.ApiResponseDto;
+import sopt.org.ThirdSeminar.controller.post.dto.request.PostCreateDto;
+import sopt.org.ThirdSeminar.exception.SuccessStatus;
+import sopt.org.ThirdSeminar.service.PostService;
+
+import javax.validation.Valid;
+
+@RestController
+@RequiredArgsConstructor
+public class PostController {
+
+    private final PostService postService;
+
+    @PostMapping("/post/{userId}")
+    public ApiResponseDto create(@PathVariable final Long userId, @RequestBody @Valid final PostCreateDto postCreateDto) {
+        return ApiResponseDto.success(SuccessStatus.POST_CREATE_SUCCESS, postService.create(userId, postCreateDto));
+    }
+
+    @GetMapping("/post/{postId}")
+    public ApiResponseDto getOne(@PathVariable final Long postId) {
+        return ApiResponseDto.success(SuccessStatus.POST_INQUIRY_SUCCESS, postService.getOne(postId));
+    }
+
+}

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/controller/post/dto/request/PostCreateDto.java

@@ -0,0 +1,15 @@
+package sopt.org.ThirdSeminar.controller.post.dto.request;
+
+import lombok.Getter;
+
+import javax.validation.constraints.NotEmpty;
+
+@Getter
+public class PostCreateDto {
+
+    @NotEmpty(message = "제목은 필수입니다.")
+    private String title;
+
+    @NotEmpty(message = "내용은 필수입니다.")
+    private String content;
+}

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/controller/post/dto/response/PostResponseDto.java

@@ -0,0 +1,17 @@
+package sopt.org.ThirdSeminar.controller.post.dto.response;
+
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class PostResponseDto {
+    private String title;
+    private String content;
+    private String authorName;
+
+    public static PostResponseDto of(String title, String content, String authorName) {
+        return new PostResponseDto(title, content, authorName);
+    }
+}

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/controller/user/UserController.java

@@ -1,12 +1,12 @@
-package sopt.org.ThirdSeminar.controller;
+package sopt.org.ThirdSeminar.controller.user;
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
 import sopt.org.ThirdSeminar.common.dto.ApiResponseDto;
-import sopt.org.ThirdSeminar.controller.dto.request.UserRequestDto;
-import sopt.org.ThirdSeminar.controller.dto.response.UserResponseDto;
+import sopt.org.ThirdSeminar.controller.user.dto.request.UserRequestDto;
+import sopt.org.ThirdSeminar.controller.user.dto.response.UserResponseDto;
 import sopt.org.ThirdSeminar.exception.SuccessStatus;
 import sopt.org.ThirdSeminar.service.UserService;
 

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/controller/user/dto/request/UserRequestDto.java

@@ -1,4 +1,4 @@
-package sopt.org.ThirdSeminar.controller.dto.request;
+package sopt.org.ThirdSeminar.controller.user.dto.request;
 
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/controller/user/dto/response/UserResponseDto.java

@@ -1,4 +1,4 @@
-package sopt.org.ThirdSeminar.controller.dto.response;
+package sopt.org.ThirdSeminar.controller.user.dto.response;
 
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/domain/User.java

@@ -14,6 +14,7 @@ public class User {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "user_id")
     private Long id;
 
     @Column(nullable = false)

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/exception/SuccessStatus.java

@@ -12,7 +12,14 @@ public enum SuccessStatus {
     /*
     user
      */
-    SIGNUP_SUCCESS(HttpStatus.CREATED, "회원가입이 완료되었습니다.");
+    SIGNUP_SUCCESS(HttpStatus.CREATED, "회원가입이 완료되었습니다."),
+
+    /*
+    post
+     */
+    POST_CREATE_SUCCESS(HttpStatus.CREATED, "게시물 생성이 완료되었습니다."),
+    POST_INQUIRY_SUCCESS(HttpStatus.OK, "게시물 조회가 완료되었습니다.")
+    ;
 
     private final HttpStatus httpStatus;
     private final String message;

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/infrastructure/PostRepository.java

@@ -0,0 +1,14 @@
+package sopt.org.ThirdSeminar.infrastructure;
+
+import org.springframework.stereotype.Repository;
+import sopt.org.ThirdSeminar.domain.Post;
+
+import java.util.Optional;
+
+@Repository
+public interface PostRepository extends org.springframework.data.repository.Repository<Post, Long> {
+
+    void save(Post post);
+
+    Optional<Post> findById(Long postId);
+}

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/infrastructure/UserRepository.java

@@ -3,6 +3,11 @@
 import org.springframework.data.repository.Repository;
 import sopt.org.ThirdSeminar.domain.User;
 
+import java.util.Optional;
+
 public interface UserRepository extends Repository<User, Long> {
+
     void save(User user);
+
+    Optional<User> findById(Long userId);
 }

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/service/PostService.java

@@ -0,0 +1,40 @@
+package sopt.org.ThirdSeminar.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import sopt.org.ThirdSeminar.controller.post.dto.request.PostCreateDto;
+import sopt.org.ThirdSeminar.controller.post.dto.response.PostResponseDto;
+import sopt.org.ThirdSeminar.domain.Post;
+import sopt.org.ThirdSeminar.domain.User;
+import sopt.org.ThirdSeminar.infrastructure.PostRepository;
+
+@Service
+@RequiredArgsConstructor
+public class PostService {
+
+    private final PostRepository postRepository;
+    private final UserService userService;
+
+    @Transactional
+    public PostResponseDto create(Long userId, PostCreateDto postCreateDto) {
+        User userById = userService.findUserById(userId);
+
+        Post post = Post.builder()
+                .title(postCreateDto.getTitle())
+                .content(postCreateDto.getContent())
+                .user(userById)
+                .build();
+
+        postRepository.save(post);
+
+        return PostResponseDto.of(post.getTitle(), post.getContent(), userById.getNickname());
+    }
+
+    @Transactional(readOnly = true)
+    public PostResponseDto getOne(Long postId) {
+        Post post = postRepository.findById(postId).orElseThrow();
+
+        return PostResponseDto.of(post.getTitle(), post.getContent(), post.getUser().getNickname());
+    }
+}

ThirdSeminar/src/main/java/sopt/org/ThirdSeminar/service/UserService.java

@@ -3,8 +3,8 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
-import sopt.org.ThirdSeminar.controller.dto.request.UserRequestDto;
-import sopt.org.ThirdSeminar.controller.dto.response.UserResponseDto;
+import sopt.org.ThirdSeminar.controller.user.dto.request.UserRequestDto;
+import sopt.org.ThirdSeminar.controller.user.dto.response.UserResponseDto;
 import sopt.org.ThirdSeminar.domain.User;
 import sopt.org.ThirdSeminar.infrastructure.UserRepository;
 
@@ -26,4 +26,8 @@ public UserResponseDto create(UserRequestDto request) {
 
         return UserResponseDto.of(user.getId(), user.getNickname());
     }
+
+    public User findUserById(Long userId) {
+        return userRepository.findById(userId).orElseThrow();
+    }
 }