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should update article

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This commit is contained in:
aisensiy
2017-08-15 14:17:54 +08:00
parent ca2683abab
commit 6c41584abe
12 changed files with 242 additions and 44 deletions
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40
src/main/java/io/spring/api/ArticleApi.java
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@@ -1,25 +1,37 @@
package io.spring.api;
import com.fasterxml.jackson.annotation.JsonRootName;
import io.spring.api.exception.NoAuthorizationException;
import io.spring.api.exception.ResourceNotFoundException;
import io.spring.application.AuthorizationService;
import io.spring.application.article.ArticleData;
import io.spring.application.article.ArticleQueryService;
import io.spring.core.article.ArticleRepository;
import io.spring.core.user.User;
import lombok.Getter;
import lombok.NoArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.validation.Valid;
@RestController
@RequestMapping(path = "/articles/{slug}")
public class ArticleApi {
private ArticleQueryService articleQueryService;
private ArticleRepository articleRepository;
@Autowired
public ArticleApi(ArticleQueryService articleQueryService) {
public ArticleApi(ArticleQueryService articleQueryService, ArticleRepository articleRepository) {
this.articleQueryService = articleQueryService;
this.articleRepository = articleRepository;
}
@GetMapping
@@ -27,4 +39,30 @@ public class ArticleApi {
@AuthenticationPrincipal User user) {
return articleQueryService.findBySlug(slug, user).map(ResponseEntity::ok).orElseThrow(ResourceNotFoundException::new);
}
@PutMapping
public ResponseEntity<ArticleData> updateArticle(@PathVariable("slug") String slug,
@AuthenticationPrincipal User user,
@Valid @RequestBody UpdateArticleParam updateArticleParam) {
return articleRepository.findBySlug(slug).map(article -> {
if (!AuthorizationService.canUpdateArticle(user, article)) {
throw new NoAuthorizationException();
}
article.update(
updateArticleParam.getTitle(),
updateArticleParam.getDescription(),
updateArticleParam.getBody());
articleRepository.save(article);
return ResponseEntity.ok(articleQueryService.findBySlug(slug, user).get());
}).orElseThrow(ResourceNotFoundException::new);
}
}
@Getter
@NoArgsConstructor
@JsonRootName("article")
class UpdateArticleParam {
private String title = "";
private String body = "";
private String description = "";
}

2
src/main/java/io/spring/api/ArticlesApi.java
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@@ -41,8 +41,6 @@ public class ArticlesApi {
}
Article article = new Article(
articleRepository.toSlug(
newArticleParam.getTitle()),
newArticleParam.getTitle(),
newArticleParam.getDescription(),
newArticleParam.getBody(),

8
src/main/java/io/spring/api/exception/NoAuthorizationException.java Normal file
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@@ -0,0 +1,8 @@
package io.spring.api.exception;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ResponseStatus;
@ResponseStatus(HttpStatus.FORBIDDEN)
public class NoAuthorizationException extends RuntimeException {
}

10
src/main/java/io/spring/application/AuthorizationService.java Normal file
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@@ -0,0 +1,10 @@
package io.spring.application;
import io.spring.core.article.Article;
import io.spring.core.user.User;
public class AuthorizationService {
public static boolean canUpdateArticle(User user, Article article) {
return user.getId().equals(article.getUserId());
}
}

20
src/main/java/io/spring/core/article/Article.java
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@@ -26,9 +26,9 @@ public class Article {
private DateTime createdAt;
private DateTime updatedAt;
public Article(String slug, String title, String description, String body, String[] tagList, String userId) {
public Article(String title, String description, String body, String[] tagList, String userId) {
this.id = UUID.randomUUID().toString();
this.slug = slug;
this.slug = toSlug(title);
this.title = title;
this.description = description;
this.body = body;
@@ -38,4 +38,20 @@ public class Article {
this.updatedAt = new DateTime();
}
public void update(String title, String description, String body) {
if (!"".equals(title)) {
this.title = title;
this.slug = toSlug(title);
}
if (!"".equals(description)) {
this.description = description;
}
if (!"".equals(body)) {
this.body = body;
}
}
private String toSlug(String title) {
return title.toLowerCase().replace(' ', '-');
}
}

3
src/main/java/io/spring/core/article/ArticleRepository.java
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@@ -3,9 +3,10 @@ package io.spring.core.article;
import java.util.Optional;
public interface ArticleRepository {
String toSlug(String title);
void save(Article article);
Optional<Article> findById(String id);
Optional<Article> findBySlug(String slug);
}

4
src/main/java/io/spring/infrastructure/article/ArticleMapper.java
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@@ -18,4 +18,8 @@ public interface ArticleMapper {
void insertTag(@Param("tag") Tag tag);
void insertArticleTagRelation(@Param("articleId") String articleId, @Param("tagId") String tagId);
Article findBySlug(@Param("slug") String slug);
void update(@Param("article") Article article);
}

16
src/main/java/io/spring/infrastructure/article/MyBatisArticleRepository.java
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@@ -16,12 +16,15 @@ public class MyBatisArticleRepository implements ArticleRepository {
}
@Override
public String toSlug(String title) {
return title.toLowerCase().replace(' ', '-');
public void save(Article article) {
if (articleMapper.findById(article.getId()) == null) {
createNew(article);
} else {
articleMapper.update(article);
}
}
@Override
public void save(Article article) {
private void createNew(Article article) {
articleMapper.insert(article);
for (Tag tag : article.getTags()) {
if (!articleMapper.findTag(tag.getName())) {
@@ -35,4 +38,9 @@ public class MyBatisArticleRepository implements ArticleRepository {
public Optional<Article> findById(String id) {
return Optional.ofNullable(articleMapper.findById(id));
}
@Override
public Optional<Article> findBySlug(String slug) {
return Optional.ofNullable(articleMapper.findBySlug(slug));
}
}

46
src/main/resources/mapper/ArticleMapper.xml
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@@ -19,27 +19,45 @@
<insert id="insertArticleTagRelation">
insert into article_tags (article_id, tag_id) values(#{articleId}, #{tagId})
</insert>
<select id="findById" resultMap="article">
<update id="update">
update articles
<set>
<if test="article.title != ''">title = #{article.title},</if>
<if test="article.title != ''">slug = #{article.slug},</if>
<if test="article.description != ''">description = #{article.description},</if>
<if test="article.body != ''">body = #{article.body}</if>
</set>
where id = #{article.id}
</update>
<sql id="selectArticle">
select
A.id articleId,
A.slug articleSlug,
A.title articleTitle,
A.description articleDescription,
A.body articleBody,
A.user_id articleUserId,
A.created_at articleCreatedAt,
A.updated_at articleUpdatedAt,
T.id tagId,
T.name tagName
from articles A
left join article_tags AT on A.id = AT.article_id
left join tags T on T.id = AT.tag_id
A.id articleId,
A.slug articleSlug,
A.title articleTitle,
A.description articleDescription,
A.body articleBody,
A.user_id articleUserId,
A.created_at articleCreatedAt,
A.updated_at articleUpdatedAt,
T.id tagId,
T.name tagName
from articles A
left join article_tags AT on A.id = AT.article_id
left join tags T on T.id = AT.tag_id
</sql>
<select id="findById" resultMap="article">
<include refid="selectArticle"/>
where A.id = #{id}
</select>
<select id="findTag" resultType="java.lang.Boolean">
select count(*) from tags where name = #{tagName}
</select>
<select id="findBySlug" resultMap="article">
<include refid="selectArticle"/>
where A.slug = #{slug}
</select>
<resultMap id="article" type="io.spring.core.article.Article">
<id column="articleId" property="id"/>