Merge pull request #181 from team-offonoff/fix

fix: 토픽 조회 시 stream에서 member 조회하지 않고 한 번만 조회

src/main/java/life/offonoff/ab/application/service/TopicService.java

@@ -147,15 +147,16 @@ public Topic findTopic(final Long topicId) {
      * @param pageable
      * @return
      */
-    public Slice<TopicResponse> findAll(final Long memberId, final TopicSearchRequest request, final Pageable pageable) {
+    public Slice<TopicResponse> findAll(final Long retrieverId, final TopicSearchRequest request, final Pageable pageable) {
 
-        Slice<Topic> topics = topicRepository.findAll(memberId, request, pageable);
+        Slice<Topic> topics = topicRepository.findAll(retrieverId, request, pageable);
 
-        if (memberId == null) {
+        if (retrieverId == null) {
             return topics.map(TopicResponse::from);
         }
 
-        return topics.map(topic -> TopicResponse.from(topic, findMember(memberId)));
+        Member retriever = findMember(retrieverId);
+        return topics.map(topic -> TopicResponse.from(topic, retriever));
     }
 
     //== Hide ==//