[#108] 범용 게시판 만들기

community-backend/app/app-monolith/build.gradle

@@ -25,6 +25,9 @@ dependencies {
     implementation project(':core:core-user-resource')
     implementation project(':domain:domain-user-resource')
 
+    implementation project(':core:core-article')
+    implementation project(':domain:domain-article')
+
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.springframework.boot:spring-boot-starter-actuator'

community-backend/app/app-monolith/src/main/java/org/kiworkshop/community/article/api/ArticleController.java

@@ -0,0 +1,48 @@
+package org.kiworkshop.community.article.api;
+
+import lombok.RequiredArgsConstructor;
+import org.kiworkshop.community.article.dto.ArticleRequestDto;
+import org.kiworkshop.community.article.dto.ArticleResponseDto;
+import org.kiworkshop.community.article.domain.service.ArticleService;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.web.PageableDefault;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.security.Principal;
+
+@RestController
+@RequestMapping("/article")
+@RequiredArgsConstructor
+public class ArticleController {
+    private final ArticleService articleService;
+
+    @PostMapping
+    public Long create(@RequestBody ArticleRequestDto articleRequestDto, Principal principal) {
+        return articleService.create(articleRequestDto);
+    }
+
+    @GetMapping
+    public Page<ArticleResponseDto> readPage(
+        @PageableDefault(sort = "id", direction = Sort.Direction.DESC) Pageable pageable
+    ) {
+        return articleService.readPage(pageable);
+    }
+
+    @GetMapping("/{id}")
+    public ArticleResponseDto read(@PathVariable Long id) {
+        return articleService.read(id);
+    }
+
+    @DeleteMapping("/{id}")
+    public void delete(@PathVariable Long id, Principal principal) {
+        articleService.delete(id, principal);
+    }
+
+    @PutMapping("/{id}")
+    public void update(@PathVariable Long id, @RequestBody ArticleRequestDto articleRequestDto, Principal principal) {
+        articleService.update(id, articleRequestDto);
+    }
+}

community-backend/app/app-monolith/src/test/java/org/kiworkshop/community/article/api/ArticleControllerTest.java

@@ -0,0 +1,4 @@
+package org.kiworkshop.community.article.api;
+
+public class ArticleControllerTest {
+}

community-backend/core/core-article/build.gradle

@@ -0,0 +1,15 @@
+plugins {
+    id 'java'
+}
+
+version 'unspecified'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation "javax.validation:validation-api:${javaxValidationApiVersion}"
+
+    testFixturesImplementation "org.springframework:spring-test:${springTestVersion}"
+}

community-backend/core/core-article/lombok.config

@@ -0,0 +1,3 @@
+# This file is generated by the 'io.freefair.lombok' Gradle plugin
+config.stopBubbling = true
+lombok.addLombokGeneratedAnnotation = true

community-backend/core/core-article/src/main/java/org/kiworkshop/community/article/dto/ArticleRequestDto.java

@@ -0,0 +1,16 @@
+package org.kiworkshop.community.article.dto;
+
+
+import javax.validation.constraints.NotEmpty;
+
+import lombok.Getter;
+
+@Getter
+public class ArticleRequestDto {
+    @NotEmpty
+    private String title;
+    @NotEmpty
+    private String content;
+    @NotEmpty
+    private String username;
+}

community-backend/core/core-article/src/main/java/org/kiworkshop/community/article/dto/ArticleResponseDto.java

@@ -0,0 +1,33 @@
+package org.kiworkshop.community.article.dto;
+
+import java.time.ZonedDateTime;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class ArticleResponseDto {
+    private Long id;
+    private String title;
+    private String content;
+    private String username;
+    private ZonedDateTime createdAt;
+    private ZonedDateTime updatedAt;
+
+    @Builder
+    private ArticleResponseDto(
+        Long id,
+        String title,
+        String content,
+        String username,
+        ZonedDateTime createdAt,
+        ZonedDateTime updatedAt
+    ) {
+        this.id = id;
+        this.title = title;
+        this.content =content;
+        this.username = username;
+        this.createdAt = createdAt;
+        this.updatedAt = updatedAt;
+    }
+}

community-backend/core/core-article/src/test/java/org/kiworkshop/community/article/dto/ArticleRequestDtoTest.java

@@ -0,0 +1,38 @@
+package org.kiworkshop.community.article.dto;
+
+import static org.assertj.core.api.BDDAssertions.then;
+
+import javax.validation.Validation;
+import javax.validation.Validator;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+import org.springframework.test.util.ReflectionTestUtils;
+
+class ArticleRequestDtoTest {
+
+    private static final Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
+    private ArticleRequestDto articleRequestDto;
+
+    @BeforeEach
+    void setUp() {
+        articleRequestDto = ArticleRequestDtoFixture.get();
+    }
+
+    @ParameterizedTest
+    @CsvSource({
+        "title,empty",
+        "content,empty",
+        "username,empty"
+    })
+    void validate_InvalidValue_ThrowException(String fieldName, String value) {
+        // given
+        String valueToInject = "empty".equals(value) ? "" : value;
+        ReflectionTestUtils.setField(articleRequestDto, fieldName, valueToInject);
+
+        var violations = validator.validate(articleRequestDto);
+
+        then(violations.size()).isEqualTo(1);
+    }
+}

community-backend/core/core-article/src/testFixtures/java/org/kiworkshop/community/article/dto/ArticleRequestDtoFixture.java

@@ -0,0 +1,15 @@
+package org.kiworkshop.community.article.dto;
+
+import org.springframework.test.util.ReflectionTestUtils;
+
+public class ArticleRequestDtoFixture {
+    public static ArticleRequestDto get() {
+        ArticleRequestDto articleRequestDto = new ArticleRequestDto();
+
+        ReflectionTestUtils.setField(articleRequestDto, "title", "title");
+        ReflectionTestUtils.setField(articleRequestDto, "content", "content");
+        ReflectionTestUtils.setField(articleRequestDto, "username", "username");
+
+        return articleRequestDto;
+    }
+}

community-backend/core/core-article/src/testFixtures/java/org/kiworkshop/community/article/dto/ArticleResponseDtoFixture.java

@@ -0,0 +1,16 @@
+package org.kiworkshop.community.article.dto;
+
+import java.time.ZonedDateTime;
+
+public class ArticleResponseDtoFixture {
+    public static ArticleResponseDto get() {
+        return ArticleResponseDto.builder()
+            .id(1L)
+            .title("title")
+            .content("content")
+            .username("username")
+            .createdAt(ZonedDateTime.now())
+            .updatedAt(ZonedDateTime.now())
+            .build();
+    }
+}

community-backend/db-migration/V8__Create_table_article.sql

@@ -0,0 +1,10 @@
+create table article (
+  id bigint not null auto_increment,
+  created_at datetime(6),
+  updated_at datetime(6),
+  title varchar(255) not null,
+  content LONGTEXT not null,
+  username varchar(255) not null,
+  active bit,
+  primary key (id)
+);

community-backend/domain/domain-article/build.gradle

@@ -0,0 +1,21 @@
+plugins {
+    id 'java'
+}
+
+version 'unspecified'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation project(':domain:domain-common')
+    implementation project(':core:core-article')
+
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+
+    testImplementation testFixtures(project(":core:core-article"))
+    testFixturesImplementation project(":core:core-article")
+    testFixturesImplementation project(":domain:domain-common")
+    testFixturesImplementation "org.springframework:spring-test:${springTestVersion}"
+}

community-backend/domain/domain-article/lombok.config

@@ -0,0 +1,3 @@
+# This file is generated by the 'io.freefair.lombok' Gradle plugin
+config.stopBubbling = true
+lombok.addLombokGeneratedAnnotation = true

community-backend/domain/domain-article/src/main/java/org/kiworkshop/community/article/domain/exception/ArticleNotFoundException.java

@@ -0,0 +1,9 @@
+package org.kiworkshop.community.article.domain.exception;
+
+import javax.persistence.EntityNotFoundException;
+
+public class ArticleNotFoundException extends EntityNotFoundException {
+    public ArticleNotFoundException(Long id) {
+        super("Article of id:" + id + " is not found.");
+    }
+}

community-backend/domain/domain-article/src/main/java/org/kiworkshop/community/article/domain/model/Article.java

@@ -0,0 +1,70 @@
+package org.kiworkshop.community.article.domain.model;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Lob;
+
+import org.kiworkshop.community.common.domain.BaseEntity;
+import org.springframework.util.Assert;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+@Getter
+@Entity
+public class Article extends BaseEntity {
+    private static final String DELETED_ARTICLE_MESSAGE = "삭제된 게시글입니다.";
+
+    @Column(nullable = false)
+    private String title;
+    @Lob
+    @Column(nullable = false)
+    private String content;
+    @Column(nullable = false)
+    private String username;
+    private boolean active = true;
+
+    @Builder
+    private Article(String title, String content, String username) {
+        Assert.hasLength(title, "title must have length.");
+        Assert.hasLength(content, "content must have length.");
+        Assert.hasLength(username, "username must have length.");
+        this.title = title;
+        this.content = content;
+        this.username = username;
+    }
+
+    public void update(Article article) {
+        // TODO: 20. 8. 31. Error Code 가 400이 되어야 할지? 403이 되어야 할지 고민
+        Assert.isTrue(this.username.equals(article.username), "unauthorized username");
+        this.title = article.title;
+        this.content = article.content;
+    }
+
+    public boolean isAuthor(String name) {
+        return this.username.equals(name);
+    }
+
+    public void deactivate(String username) {
+        if (!this.username.equals(username)) {
+            throw new IllegalArgumentException("unauthorized user");
+        }
+        this.active = false;
+    }
+
+    public String getTitle() {
+        if (this.active) {
+            return DELETED_ARTICLE_MESSAGE;
+        }
+        return this.title;
+    }
+
+    public String getContent() {
+        if (this.active) {
+            return DELETED_ARTICLE_MESSAGE;
+        }
+        return this.content;
+    }
+}

community-backend/domain/domain-article/src/main/java/org/kiworkshop/community/article/domain/model/ArticleRepository.java

@@ -0,0 +1,10 @@
+package org.kiworkshop.community.article.domain.model;
+
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ArticleRepository extends JpaRepository<Article, Long> {
+    Page<Article> findAllByActiveIsTrue(Pageable pageable);
+}

community-backend/domain/domain-article/src/main/java/org/kiworkshop/community/article/domain/service/ArticleConverter.java

@@ -0,0 +1,30 @@
+package org.kiworkshop.community.article.domain.service;
+
+import org.kiworkshop.community.article.domain.model.Article;
+import org.kiworkshop.community.article.dto.ArticleRequestDto;
+import org.kiworkshop.community.article.dto.ArticleResponseDto;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class ArticleConverter {
+    public static Article toEntity(ArticleRequestDto articleRequestDto) {
+        return Article.builder()
+            .title(articleRequestDto.getTitle())
+            .content(articleRequestDto.getContent())
+            .username(articleRequestDto.getUsername())
+            .build();
+    }
+
+    public static ArticleResponseDto from(Article article) {
+        return ArticleResponseDto.builder()
+            .id(article.getId())
+            .title(article.getTitle())
+            .content(article.getContent())
+            .username(article.getUsername())
+            .createdAt(article.getCreatedAt())
+            .updatedAt(article.getUpdatedAt())
+            .build();
+    }
+}