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fix : 해시태그 기반 상품 조회 시 매칭되는 상품 없을 때 에러 발생하는 상황 수정 #179

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Merged
myqewr merged 1 commit into from
Dec 29, 2025
Merged

fix : 해시태그 기반 상품 조회 시 매칭되는 상품 없을 때 에러 발생하는 상황 수정 #179

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11 changes: 9 additions & 2 deletions src/main/java/com/ftm/server/application/service/post/LoadProductsByHashTagService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@ public LoadProductsByHashTagVoWrapper execute(
productIdAndScoreList.stream().filter(a -> a.getScore() < score).toList();
}

if (productIdAndScoreList.size() == 0) {
if (productIdAndScoreList.isEmpty()) {
return LoadProductsByHashTagVoWrapper.of(List.of(), false, 0.0);
}

Expand All @@ -58,6 +58,10 @@ public LoadProductsByHashTagVoWrapper execute(
new FindByProductHashTagsQuery(hashtagList));
}

if (postProducts.isEmpty()) {
return LoadProductsByHashTagVoWrapper.of(List.of(), false, 0.0);
}

Map<Long, PostProduct> postProductMap =
postProducts.stream()
.collect(
Expand All @@ -70,6 +74,8 @@ public LoadProductsByHashTagVoWrapper execute(
int beforeSize = productIdAndScoreList.size();
Set<Long> tempProductIds =
postProducts.stream().map(PostProduct::getId).collect(Collectors.toSet());

// 캐시에 존재하는 상품 중(인기순으로 정렬되어 있음), 해시태그와 관련 있는 상품만 조회 + limit 만큼 자르기
List<ProductIdAndScoreVo> productIdAndScoreVoList =
productIdAndScoreList.stream()
.filter(vo -> tempProductIds.contains(vo.getProductId())) // DB에 존재하는 상품만
Expand All @@ -96,7 +102,8 @@ public LoadProductsByHashTagVoWrapper execute(
loadProductAndUserLikeVos.stream()
.collect(
Collectors.toMap(
LoadProductAndUserLikeVo::getProductId, // key: productId
LoadProductAndUserLikeVo::getProductId, // key:
// productId
Function.identity() // value: 해당 PostProduct 객체 자체
));

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