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optimize(backend): batch query for /api/categories && /api/tags

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netcat
2025-08-14 14:19:04 +08:00
parent 7a0afedc7c
commit 0058f20b1e
4 changed files with 42 additions and 8 deletions
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28
backend/src/main/java/com/openisle/service/PostService.java
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@@ -31,16 +31,15 @@ import com.openisle.service.EmailSender;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.util.List;
import java.util.*;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ScheduledFuture;
@@ -567,10 +566,31 @@ public class PostService {
return postRepository.countByCategory_Id(categoryId);
}
public Map<Long, Long> countPostsByCategoryIds(List<Long> categoryIds) {
Map<Long, Long> result = new HashMap<>();
var dbResult = postRepository.countPostsByCategoryIds(categoryIds);
dbResult.forEach(r -> {
result.put(((Long)r[0]), ((Long)r[1]));
});
return result;
}
public long countPostsByTag(Long tagId) {
return postRepository.countDistinctByTags_Id(tagId);
}
public Map<Long, Long> countPostsByTagIds(List<Long> tagIds) {
Map<Long, Long> result = new HashMap<>();
if (CollectionUtils.isEmpty(tagIds)) {
return result;
}
var dbResult = postRepository.countPostsByTagIds(tagIds);
dbResult.forEach(r -> {
result.put(((Long)r[0]), ((Long)r[1]));
});
return result;
}
private java.util.List<Post> sortByPinnedAndCreated(java.util.List<Post> posts) {
return posts.stream()
.sorted(java.util.Comparator