[WTH-159] user 도메인 마이그레이션

src/main/java/com/weeth/domain/schedule/domain/repository/MeetingRepository.java

@@ -17,6 +17,8 @@ public interface MeetingRepository extends JpaRepository<Meeting, Long> {
 
     List<Meeting> findAllByCardinal(int cardinal);
 
+    List<Meeting> findAllByCardinalInOrderByCardinalAscStartAsc(List<Integer> cardinals);
+
     List<Meeting> findAllByMeetingStatusAndEndBeforeOrderByEndAsc(MeetingStatus status, LocalDateTime end);
 
     List<Meeting> findAllByOrderByStartDesc();

src/main/java/com/weeth/domain/schedule/domain/service/MeetingGetService.java

@@ -10,7 +10,10 @@
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
+import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 @Service
 @RequiredArgsConstructor
@@ -34,6 +37,14 @@ public List<Meeting> find(Integer cardinal) {
         return meetingRepository.findAllByCardinalOrderByStartAsc(cardinal);
     }
 
+    public Map<Integer, List<Meeting>> findByCardinals(List<Integer> cardinals) {
+        if (cardinals == null || cardinals.isEmpty()) {
+            return Map.of();
+        }
+        return meetingRepository.findAllByCardinalInOrderByCardinalAscStartAsc(cardinals).stream()
+                .collect(Collectors.groupingBy(Meeting::getCardinal, LinkedHashMap::new, Collectors.toList()));
+    }
+
     public List<Meeting> findMeetingByCardinal(Integer cardinal) {
         return meetingRepository.findAllByCardinalOrderByStartDesc(cardinal);
     }