8e0dc43370
1. 메인화면에 필요한 게시물 리스트 조회 로직과 화면 렌더링 구현 2. 조회수순으로 메인화면 노출과 최신 업로드 순 게시물 노출 로직 구분 3. 무한스크롤 구현 4. 스크롤 화살표 구현 5. 계층형 카테고리 개발과 화면 렌더링 완료 - 롤업함수와 백트래킹으로 구현
89 lines
2.9 KiB
Java
89 lines
2.9 KiB
Java
package myblog.blog.article.service;
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import lombok.RequiredArgsConstructor;
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import myblog.blog.article.domain.Article;
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import myblog.blog.article.dto.ArticleForMainView;
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import myblog.blog.article.dto.NewArticleDto;
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import myblog.blog.article.repository.ArticleRepository;
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import myblog.blog.category.service.CategoryService;
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import myblog.blog.member.doamin.Member;
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import myblog.blog.member.repository.MemberRepository;
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import myblog.blog.member.service.Oauth2MemberService;
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import myblog.blog.tags.service.TagsService;
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import org.modelmapper.ModelMapper;
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import org.springframework.data.domain.PageRequest;
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import org.springframework.data.domain.Slice;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import javax.annotation.PostConstruct;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.UUID;
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@Service
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@Transactional
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@RequiredArgsConstructor
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public class ArticleService {
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private final ArticleRepository
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articleRepository;
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private final MemberRepository memberRepository;
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private final TagsService tagsService;
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private final CategoryService categoryService;
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private final Oauth2MemberService memberService;
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private final ModelMapper modelMapper;
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public Long writeArticle(NewArticleDto articleDto) {
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Article newArticle = createNewArticleFrom(articleDto);
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articleRepository.save(newArticle);
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tagsService.createNewTagsAndArticleTagList(articleDto.getTags(), newArticle);
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return newArticle.getId();
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}
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public List<ArticleForMainView> getPopularArticles() {
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List<Article> top6ByOrderByHitDesc = articleRepository.findTop6ByOrderByHitDesc();
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List<ArticleForMainView> articles = new ArrayList<>();
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for (Article article : top6ByOrderByHitDesc) {
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articles.add(modelMapper.map(article, ArticleForMainView.class));
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}
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return articles;
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}
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public Slice<ArticleForMainView> getRecentArticles(int page) {
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return articleRepository.findByOrderByCreatedDateDesc(PageRequest.of(page, 5))
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.map(article -> modelMapper.map(article, ArticleForMainView.class));
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}
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private Article createNewArticleFrom(NewArticleDto articleDto) {
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Member member =
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memberRepository.findById(articleDto.getMemberId()).orElseThrow(() -> {
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throw new IllegalArgumentException("작성자를 확인할 수 없습니다");
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});
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return Article.builder()
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.title(articleDto.getTitle())
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.content(articleDto.getContent())
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.toc(articleDto.getToc())
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.thumbnailUrl(articleDto.getThumbnailUrl())
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.category(categoryService.findCategory(articleDto.getCategory()))
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.member(member)
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.build();
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}
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/*--------------------------------------------------------------------------------------------*/
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}
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