[BUG] 게스트 하우스 삭제 에러 해결 (#88)

src/main/java/com/sumte/guesthouse/service/GuesthouseCommandServiceImpl.java

@@ -19,6 +19,7 @@
 import com.sumte.guesthouse.repository.GuesthouseTargetAudienceRepository;
 import com.sumte.guesthouse.repository.OptionServicesRepository;
 import com.sumte.guesthouse.repository.TargetAudienceRepository;
+import com.sumte.user.repository.FavoriteRepository;
 
 import jakarta.transaction.Transactional;
 import lombok.RequiredArgsConstructor;
@@ -34,6 +35,7 @@ public class GuesthouseCommandServiceImpl implements GuesthouseCommandService {
 	private final TargetAudienceRepository targetAudienceRepository;
 	private final GuesthouseTargetAudienceRepository guesthouseTargetAudienceRepository;
 	private final GuesthouseOptionServicesRepository guesthouseOptionServicesRepository;
+	private final FavoriteRepository favoriteRepository;
 
 	@Override
 	public GuesthouseResponseDTO.Register registerGuesthouse(GuesthouseRequestDTO.Register dto) {
@@ -142,6 +144,7 @@ public GuesthouseResponseDTO.delete deleteGuesthouse(Long guesthouseId) {
 		} else {
 			guesthouseOptionServicesRepository.deleteByGuesthouseId(guesthouseId);
 			guesthouseTargetAudienceRepository.deleteByGuesthouseId(guesthouseId);
+			favoriteRepository.deleteByGuesthouseId(guesthouseId);
 			guesthouseRepository.delete(guesthouse);
 			return GuesthouseResponseDTO.delete.builder()
 				.name(guesthouse.getName())

src/main/java/com/sumte/user/repository/FavoriteRepository.java

@@ -28,4 +28,6 @@ public interface FavoriteRepository extends JpaRepository<Favorite, Long> {
 		"where f.user.id = :userId and f.guesthouse.id in :guesthouseIds")
 	List<Long> findFavoritedGuesthouseIds(@Param("userId") Long userId,
 		@Param("guesthouseIds") Collection<Long> guesthouseIds);
+
+	void deleteByGuesthouseId(Long guesthouseId);
 }