[8주차]Cow_mvc_practice(win9-tech)

src/main/java/com/cow/cow_mvc_practice/CowMvcPracticeApplication.java

@@ -2,12 +2,13 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 @SpringBootApplication
+@EnableJpaAuditing
 public class CowMvcPracticeApplication {
 
 	public static void main(String[] args) {
 		SpringApplication.run(CowMvcPracticeApplication.class, args);
 	}
-
 }

src/main/java/com/cow/cow_mvc_practice/comment/controller/CommentController.java

@@ -0,0 +1,21 @@
+package com.cow.cow_mvc_practice.comment.controller;
+
+import com.cow.cow_mvc_practice.comment.dto.request.CreateCommentRequest;
+import com.cow.cow_mvc_practice.comment.dto.response.CreatedCommentResponse;
+import com.cow.cow_mvc_practice.comment.service.CommentService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/post/{postId}/comment")
+@RequiredArgsConstructor
+public class CommentController {
+
+    private final CommentService commentService;
+
+    @PostMapping("/new")
+    public CreatedCommentResponse create(@PathVariable Long postId, @RequestBody final CreateCommentRequest commentRequest) {
+        return commentService.create(postId, commentRequest);
+    }
+}
+

src/main/java/com/cow/cow_mvc_practice/comment/dto/request/CreateCommentRequest.java

@@ -0,0 +1,17 @@
+package com.cow.cow_mvc_practice.comment.dto.request;
+
+import com.cow.cow_mvc_practice.comment.entity.Comment;
+import lombok.Getter;
+
+@Getter
+public class CreateCommentRequest {
+
+    private Long id;
+    private String content;
+
+    public Comment toEntity() {
+        return Comment.builder()
+                .content(this.content)
+                .build();
+    }
+}

src/main/java/com/cow/cow_mvc_practice/comment/dto/response/CreatedCommentResponse.java

@@ -0,0 +1,35 @@
+package com.cow.cow_mvc_practice.comment.dto.response;
+
+import com.cow.cow_mvc_practice.comment.entity.Comment;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@Getter
+public class CreatedCommentResponse {
+
+    private final Long id;
+    private final Long postId;
+    private final Long memberId;
+    private final String content;
+    private final LocalDateTime createTime;
+
+    @Builder
+    private CreatedCommentResponse(final Long id, final Long postId, final Long memberId, final String content, final LocalDateTime createTime) {
+        this.id = id;
+        this.postId = postId;
+        this.memberId = memberId;
+        this.content = content;
+        this.createTime = createTime;
+    }
+
+    public static CreatedCommentResponse from(final Comment comment) {
+        return CreatedCommentResponse.builder()
+                .id(comment.getId())
+                .postId(comment.getPost().getId())
+                .memberId(comment.getMember().getId())
+                .content(comment.getContent())
+                .createTime(comment.getCreatedAt()).build();
+    }
+}

src/main/java/com/cow/cow_mvc_practice/comment/entity/Comment.java

@@ -0,0 +1,40 @@
+package com.cow.cow_mvc_practice.comment.entity;
+
+import com.cow.cow_mvc_practice.member.entity.Member;
+import com.cow.cow_mvc_practice.post.entity.Post;
+import com.cow.cow_mvc_practice.utill.TimestampedEntity;
+import jakarta.persistence.*;
+import lombok.*;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Entity
+@AttributeOverride(name = "id", column = @Column(name = "comment_id"))
+public class Comment extends TimestampedEntity {
+
+    private String content;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "post_id")
+    private Post post;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "member_id")
+    private Member member;
+
+    @Builder
+    private Comment(final String content, final Post post, final Member member) {
+        this.content = content;
+        this.post = post;
+        this.member = member;
+    }
+
+    public void addMember(Member member) {
+        this.member = member;
+    }
+
+    public void addPost(Post post) {
+        this.post = post;
+        post.getComments().add(this);
+    }
+}

src/main/java/com/cow/cow_mvc_practice/comment/repository/CommentJPARepository.java

@@ -0,0 +1,9 @@
+package com.cow.cow_mvc_practice.comment.repository;
+
+import com.cow.cow_mvc_practice.comment.entity.Comment;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CommentJPARepository extends JpaRepository<Comment, Long> {
+
+    int countByPostId(Long id);
+}

src/main/java/com/cow/cow_mvc_practice/comment/service/CommentService.java

@@ -0,0 +1,10 @@
+package com.cow.cow_mvc_practice.comment.service;
+
+import com.cow.cow_mvc_practice.comment.dto.request.CreateCommentRequest;
+import com.cow.cow_mvc_practice.comment.dto.response.CreatedCommentResponse;
+
+public interface CommentService {
+
+	CreatedCommentResponse create(Long postId, CreateCommentRequest createCommentRequest);
+}
+

src/main/java/com/cow/cow_mvc_practice/comment/service/CommentServiceImpl.java

@@ -0,0 +1,45 @@
+package com.cow.cow_mvc_practice.comment.service;
+
+import com.cow.cow_mvc_practice.comment.dto.request.CreateCommentRequest;
+import com.cow.cow_mvc_practice.comment.dto.response.CreatedCommentResponse;
+import com.cow.cow_mvc_practice.comment.entity.Comment;
+import com.cow.cow_mvc_practice.comment.repository.CommentJPARepository;
+import com.cow.cow_mvc_practice.member.entity.Member;
+import com.cow.cow_mvc_practice.member.repository.MemberJPARepository;
+import com.cow.cow_mvc_practice.post.entity.Post;
+import com.cow.cow_mvc_practice.post.repository.PostJPARepository;
+import jakarta.persistence.EntityNotFoundException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Transactional
+public class CommentServiceImpl implements CommentService {
+
+    private final MemberJPARepository memberJPARepository;
+    private final PostJPARepository postJPARepository;
+    private final CommentJPARepository commentJPARepository;
+
+    @Override
+    public CreatedCommentResponse create(Long postId, CreateCommentRequest createCommentRequest) {
+        Member member = findMember(createCommentRequest);
+        Post post = findPost(postId);
+        Comment comment = createCommentRequest.toEntity();
+        comment.addMember(member);
+        comment.addPost(post);
+        commentJPARepository.save(comment);
+        return CreatedCommentResponse.from(comment);
+    }
+
+    private Post findPost(Long postId) {
+        return postJPARepository.findById(postId)
+                .orElseThrow(() -> new EntityNotFoundException("게시글을 찾을 수 없습니다."));
+    }
+
+    private Member findMember(CreateCommentRequest createCommentRequest) {
+        return memberJPARepository.findById(createCommentRequest.getId())
+                .orElseThrow(() -> new EntityNotFoundException("사용자를 찾을 수 없습니다."));
+    }
+}

src/main/java/com/cow/cow_mvc_practice/member/controller/MemberController.java

@@ -2,60 +2,40 @@
 
 import java.util.List;
 
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
-
-import com.cow.cow_mvc_practice.member.controller.dto.request.MemberRequest;
-import com.cow.cow_mvc_practice.member.controller.dto.response.MemberResponse;
+import com.cow.cow_mvc_practice.member.dto.request.UpdateMemberRequest;
+import com.cow.cow_mvc_practice.member.dto.response.FoundMemberResponse;
+import com.cow.cow_mvc_practice.member.dto.response.UpdatedMemberResponse;
+import org.springframework.web.bind.annotation.*;
+import com.cow.cow_mvc_practice.member.dto.request.CreateMemberRequest;
+import com.cow.cow_mvc_practice.member.dto.response.CreatedMemberResponse;
 import com.cow.cow_mvc_practice.member.service.MemberService;
-
 import lombok.RequiredArgsConstructor;
 
 @RestController
 @RequestMapping("/member")
 @RequiredArgsConstructor
 public class MemberController {
 
-	private final MemberService memberService;
-
-	/* 기본 */
-	// @PostMapping("/new")
-	// public String create(@RequestBody final MemberRequest memberRequest) {
-	// 	memberService.join(memberRequest);
-	// 	return "회원저장 성공!";
-	// }
-	//
-	// @GetMapping("/{memberId}")
-	// public String findMember(@PathVariable final Long memberId) {
-	// 	Member member = memberService.findOne(memberId);
-	// 	return "member 아이디: " + member.getId() + ", member 이름: " + member.getName();
-	// }
-	//
-
-	/* MemberResponse dto 적용 */
-	@PostMapping("/new")
-	public MemberResponse create(@RequestBody final MemberRequest memberRequest) {
-		return memberService.join(memberRequest.getName());
-	}
-
-	@GetMapping("/{memberId}")
-	public MemberResponse findMember(@PathVariable final Long memberId) {
-		return memberService.findOne(memberId);
-	}
-
-	@GetMapping()
-	public MemberResponse findMemberQuery(@RequestParam final Long memberId) {
-		return memberService.findOne(memberId);
-	}
-
-	@GetMapping("all")
-	public List<MemberResponse> findMembers() {
-		return memberService.findAll();
-	}
+    private final MemberService memberService;
+
+    @PostMapping("/new")
+    public CreatedMemberResponse create(@RequestBody final CreateMemberRequest createMemberRequest) {
+        return memberService.create(createMemberRequest);
+    }
+
+    @GetMapping("/{memberId}")
+    public FoundMemberResponse find(@PathVariable final Long memberId) {
+        return memberService.find(memberId);
+    }
+
+    @GetMapping("/all")
+    public List<FoundMemberResponse> findAll() {
+        return memberService.findAll();
+    }
+
+    @PatchMapping("/{memberId}")
+    public UpdatedMemberResponse update(@PathVariable("memberId") Long memberId, @RequestBody final UpdateMemberRequest updateMemberRequest) {
+        return memberService.update(memberId, updateMemberRequest);
+    }
 }
 

src/main/java/com/cow/cow_mvc_practice/member/dto/request/CreateMemberRequest.java

@@ -0,0 +1,16 @@
+package com.cow.cow_mvc_practice.member.dto.request;
+
+import com.cow.cow_mvc_practice.member.entity.Member;
+import lombok.Getter;
+
+@Getter
+public class CreateMemberRequest {
+
+	private String name;
+
+	public Member toEntity() {
+		return Member.builder()
+				.name(this.name)
+				.build();
+	}
+}

src/main/java/com/cow/cow_mvc_practice/member/controller/dto/request/UpdateMemberRequest.java → src/main/java/com/cow/cow_mvc_practice/member/dto/request/UpdateMemberRequest.java

@@ -1,4 +1,4 @@
-package com.cow.cow_mvc_practice.member.controller.dto.request;
+package com.cow.cow_mvc_practice.member.dto.request;
 
 import lombok.Getter;
 

src/main/java/com/cow/cow_mvc_practice/member/dto/response/CreatedMemberResponse.java

@@ -0,0 +1,25 @@
+package com.cow.cow_mvc_practice.member.dto.response;
+
+import com.cow.cow_mvc_practice.member.entity.Member;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class CreatedMemberResponse {
+
+	private final Long id;
+	private final String name;
+
+	@Builder
+	private CreatedMemberResponse(final Long id, final String name) {
+		this.id = id;
+		this.name = name;
+	}
+
+	public static CreatedMemberResponse from(final Member member) {
+		return CreatedMemberResponse.builder()
+			.id(member.getId())
+			.name(member.getName())
+			.build();
+	}
+}

src/main/java/com/cow/cow_mvc_practice/member/controller/dto/response/MemberResponse.java → src/main/java/com/cow/cow_mvc_practice/member/dto/response/FoundMemberResponse.java

@@ -1,23 +1,23 @@
-package com.cow.cow_mvc_practice.member.controller.dto.response;
+package com.cow.cow_mvc_practice.member.dto.response;
 
 import com.cow.cow_mvc_practice.member.entity.Member;
-
 import lombok.Builder;
 import lombok.Getter;
 
 @Getter
-public class MemberResponse {
+public class FoundMemberResponse {
+
 	private final Long id;
 	private final String name;
 
 	@Builder
-	private MemberResponse(final Long id, final String name) {
+	private FoundMemberResponse(final Long id, final String name) {
 		this.id = id;
 		this.name = name;
 	}
 
-	public static MemberResponse from(final Member member) {
-		return MemberResponse.builder()
+	public static FoundMemberResponse from(final Member member) {
+		return FoundMemberResponse.builder()
 			.id(member.getId())
 			.name(member.getName())
 			.build();