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Add latest reply tab and backend support

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This commit is contained in:
Tim
2025-07-23 10:58:37 +08:00
parent 1b70b08eb1
commit bc42fc9d70
5 changed files with 156 additions and 2 deletions
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29
src/main/java/com/openisle/controller/PostController.java
View File

@@ -132,6 +132,31 @@ public class PostController {
.stream().map(this::toDto).collect(Collectors.toList());
}
@GetMapping("/latest-reply")
public List<PostDto> latestReplyPosts(@RequestParam(value = "categoryId", required = false) Long categoryId,
@RequestParam(value = "categoryIds", required = false) List<Long> categoryIds,
@RequestParam(value = "tagId", required = false) Long tagId,
@RequestParam(value = "tagIds", required = false) List<Long> tagIds,
@RequestParam(value = "page", required = false) Integer page,
@RequestParam(value = "pageSize", required = false) Integer pageSize,
Authentication auth) {
List<Long> ids = categoryIds;
if (categoryId != null) {
ids = java.util.List.of(categoryId);
}
List<Long> tids = tagIds;
if (tagId != null) {
tids = java.util.List.of(tagId);
}
if (auth != null) {
userVisitService.recordVisit(auth.getName());
}
return postService.listPostsByLatestReply(ids, tids, page, pageSize)
.stream().map(this::toDto).collect(Collectors.toList());
}
private PostDto toDto(Post post) {
PostDto dto = new PostDto();
dto.setId(post.getId());
@@ -160,6 +185,9 @@ public class PostController {
java.util.List<com.openisle.model.User> participants = commentService.getParticipants(post.getId(), 5);
dto.setParticipants(participants.stream().map(this::toAuthorDto).collect(Collectors.toList()));
java.time.LocalDateTime last = commentService.getLastCommentTime(post.getId());
dto.setLastReplyAt(last != null ? last : post.getCreatedAt());
return dto;
}
@@ -261,6 +289,7 @@ public class PostController {
private long views;
private com.openisle.model.PostStatus status;
private LocalDateTime pinnedAt;
private LocalDateTime lastReplyAt;
private List<CommentDto> comments;
private List<ReactionDto> reactions;
private java.util.List<AuthorDto> participants;

3
src/main/java/com/openisle/repository/CommentRepository.java
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@@ -16,4 +16,7 @@ public interface CommentRepository extends JpaRepository<Comment, Long> {
@org.springframework.data.jpa.repository.Query("SELECT DISTINCT c.author FROM Comment c WHERE c.post = :post")
java.util.List<User> findDistinctAuthorsByPost(@org.springframework.data.repository.query.Param("post") Post post);
@org.springframework.data.jpa.repository.Query("SELECT MAX(c.createdAt) FROM Comment c WHERE c.post = :post")
java.time.LocalDateTime findLastCommentTime(@org.springframework.data.repository.query.Param("post") Post post);
}

6
src/main/java/com/openisle/service/CommentService.java
View File

@@ -123,6 +123,12 @@ public class CommentService {
return commentRepository.findAllById(ids);
}
public java.time.LocalDateTime getLastCommentTime(Long postId) {
Post post = postRepository.findById(postId)
.orElseThrow(() -> new com.openisle.exception.NotFoundException("Post not found"));
return commentRepository.findLastCommentTime(post);
}
@org.springframework.transaction.annotation.Transactional
public void deleteComment(String username, Long id) {
User user = userRepository.findByUsername(username)

52
src/main/java/com/openisle/service/PostService.java
View File

@@ -206,6 +206,47 @@ public class PostService {
return paginate(sortByPinnedAndViews(posts), page, pageSize);
}
public List<Post> listPostsByLatestReply(Integer page, Integer pageSize) {
return listPostsByLatestReply(null, null, page, pageSize);
}
public List<Post> listPostsByLatestReply(java.util.List<Long> categoryIds,
java.util.List<Long> tagIds,
Integer page,
Integer pageSize) {
boolean hasCategories = categoryIds != null && !categoryIds.isEmpty();
boolean hasTags = tagIds != null && !tagIds.isEmpty();
java.util.List<Post> posts;
if (!hasCategories && !hasTags) {
posts = postRepository.findByStatusOrderByCreatedAtDesc(PostStatus.PUBLISHED);
} else if (hasCategories) {
java.util.List<Category> categories = categoryRepository.findAllById(categoryIds);
if (categories.isEmpty()) {
return java.util.List.of();
}
if (hasTags) {
java.util.List<com.openisle.model.Tag> tags = tagRepository.findAllById(tagIds);
if (tags.isEmpty()) {
return java.util.List.of();
}
posts = postRepository.findByCategoriesAndAllTagsOrderByCreatedAtDesc(
categories, tags, PostStatus.PUBLISHED, tags.size());
} else {
posts = postRepository.findByCategoryInAndStatusOrderByCreatedAtDesc(categories, PostStatus.PUBLISHED);
}
} else {
java.util.List<com.openisle.model.Tag> tags = tagRepository.findAllById(tagIds);
if (tags.isEmpty()) {
return java.util.List.of();
}
posts = postRepository.findByAllTagsOrderByCreatedAtDesc(tags, PostStatus.PUBLISHED, tags.size());
}
return paginate(sortByPinnedAndLastReply(posts), page, pageSize);
}
public List<Post> listPostsByCategories(java.util.List<Long> categoryIds,
Integer page,
Integer pageSize) {
@@ -403,6 +444,17 @@ public class PostService {
.toList();
}
private java.util.List<Post> sortByPinnedAndLastReply(java.util.List<Post> posts) {
return posts.stream()
.sorted(java.util.Comparator
.comparing(Post::getPinnedAt, java.util.Comparator.nullsLast(java.util.Comparator.reverseOrder()))
.thenComparing(p -> {
java.time.LocalDateTime t = commentRepository.findLastCommentTime(p);
return t != null ? t : p.getCreatedAt();
}, java.util.Comparator.nullsLast(java.util.Comparator.reverseOrder())))
.toList();
}
private java.util.List<Post> paginate(java.util.List<Post> posts, Integer page, Integer pageSize) {
if (page == null || pageSize == null) {
return posts;