Merge pull request #322 from ASSU-dev/refactor/#315-student-signup-logic-edit

[FIX/#315] 회원가입 시 동일한 트랜잭션 내에서 새로 생성한 객체들 사이의 연결

Author: 2ghrms

src/main/java/com/assu/server/domain/auth/service/SignUpServiceImpl.java

@@ -96,7 +96,7 @@ public SignUpResponseDTO signupSsuStudent(StudentTokenSignUpRequestDTO req) {
         // 4) Student 프로필 생성 (크롤링된 정보 사용)
         Major major = Major.fromDisplayName(authResponse.majorStr());
 
-        Student student = Student.builder()
+        Student student = studentRepository.save(Student.builder()
                 .member(member)
                 .name(authResponse.name())
                 .department(major.getDepartment())
@@ -105,9 +105,8 @@ public SignUpResponseDTO signupSsuStudent(StudentTokenSignUpRequestDTO req) {
                 .yearSemester(authResponse.yearSemester())
                 .university(University.SSU) // Todo: 추후 다른 대학도 추가할 시 로직 변경 필요
                 .stamp(0)
-                .build();
-
-        studentRepository.save(student);
+                .build());
+        member.setProfile(student);
 
         // 5) JWT 토큰 발급
         TokensDTO tokens = jwtUtil.issueTokens(
@@ -166,6 +165,7 @@ public SignUpResponseDTO signupPartner(PartnerSignUpRequestDTO req, MultipartFil
                         .latitude(lat)
                         .longitude(lng)
                         .build());
+        member.setProfile(partner);
 
         // store 생성/연결
         Optional<Store> storeOpt = storeRepository.findBySameAddress(address, info.detailAddress());
@@ -252,6 +252,7 @@ public SignUpResponseDTO signupAdmin(AdminSignUpRequestDTO req, MultipartFile si
                         .latitude(lat)
                         .longitude(lng)
                         .build());
+        member.setProfile(admin);
 
         // 4) 토큰 발급
         TokensDTO tokens = jwtUtil.issueTokens(

src/main/java/com/assu/server/domain/member/entity/Member.java

@@ -70,4 +70,14 @@ public class Member extends BaseEntity {
 
     @OneToOne(mappedBy = "member", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
     private CommonAuth commonAuth;
+
+    public void setProfile(Object profile) {
+        if (profile instanceof Student s) {
+            this.studentProfile = s;
+        } else if (profile instanceof Partner p) {
+            this.partnerProfile = p;
+        } else if (profile instanceof Admin a) {
+            this.adminProfile = a;
+        }
+    }
 }