Merge pull request #62 from DIDIM-ai/fix/#61-userjr-nplus1

Fix/#61 userjr nplus1

Author: junghyun13

src/main/java/com/likelion/ai_teacher_a/domain/userJr/repository/UserJrRepository.java

@@ -7,6 +7,7 @@
 import org.springframework.data.repository.query.Param;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface UserJrRepository extends JpaRepository<UserJr, Long> {
 
@@ -21,4 +22,13 @@ public interface UserJrRepository extends JpaRepository<UserJr, Long> {
     boolean existsByUserIdAndNickname(Long userId, String nickname);
 
     void deleteAllByUser(User user);
+
+    @Query("""
+                SELECT uj FROM UserJr uj
+                LEFT JOIN FETCH uj.user
+                LEFT JOIN FETCH uj.image
+                WHERE uj.userJrId = :userJrId
+            """)
+    Optional<UserJr> findByIdWithUserAndImage(@Param("userJrId") Long userJrId);
+
 }

src/main/java/com/likelion/ai_teacher_a/domain/userJr/service/UserJrService.java

@@ -82,9 +82,10 @@ public List<UserJrResponseDto> findByParent(Long userId) {
     }
 
     public UserJrResponseDto findById(Long userJrId, Long userId) {
-        UserJr userJr = userJrRepository.findById(userJrId)
+        UserJr userJr = userJrRepository.findByIdWithUserAndImage(userJrId)
                 .filter(jr -> jr.getUser().getId().equals(userId))
                 .orElseThrow(() -> new RuntimeException("자녀 정보를 찾을 수 없거나 권한이 없습니다."));
+
         return UserJrResponseDto.from(userJr);
     }
 
@@ -117,7 +118,6 @@ public void delete(Long userJrId, Long userId) {
     }
 
 
-
     private boolean isValidGrade(int grade) {
         return grade >= 1 && grade <= 6;
     }