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feat: show post participants

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Tim
2025-07-10 16:03:02 +08:00
parent 86134a2a7c
commit 2b9b664aa2
5 changed files with 32 additions and 5 deletions
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4
src/main/java/com/openisle/controller/PostController.java
View File

@@ -128,6 +128,9 @@ public class PostController {
.collect(Collectors.toList());
dto.setComments(comments);
java.util.List<com.openisle.model.User> participants = commentService.getParticipants(post.getId(), 5);
dto.setParticipants(participants.stream().map(this::toAuthorDto).collect(Collectors.toList()));
return dto;
}
@@ -219,6 +222,7 @@ public class PostController {
private long views;
private List<CommentDto> comments;
private List<ReactionDto> reactions;
private java.util.List<AuthorDto> participants;
}
@Data

3
src/main/java/com/openisle/repository/CommentRepository.java
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@@ -13,4 +13,7 @@ public interface CommentRepository extends JpaRepository<Comment, Long> {
List<Comment> findByParentOrderByCreatedAtAsc(Comment parent);
List<Comment> findByAuthorOrderByCreatedAtDesc(User author, Pageable pageable);
List<Comment> findByContentContainingIgnoreCase(String keyword);
@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);
}

10
src/main/java/com/openisle/service/CommentService.java
View File

@@ -102,6 +102,16 @@ public class CommentService {
return commentRepository.findByAuthorOrderByCreatedAtDesc(user, pageable);
}
public java.util.List<User> getParticipants(Long postId, int limit) {
Post post = postRepository.findById(postId)
.orElseThrow(() -> new IllegalArgumentException("Post not found"));
java.util.LinkedHashSet<User> set = new java.util.LinkedHashSet<>();
set.add(post.getAuthor());
set.addAll(commentRepository.findDistinctAuthorsByPost(post));
java.util.List<User> list = new java.util.ArrayList<>(set);
return list.subList(0, Math.min(limit, list.size()));
}
public java.util.List<Comment> getCommentsByIds(java.util.List<Long> ids) {
return commentRepository.findAllById(ids);
}