refactor: Community 도메인 제외 연관관계 삭제

src/main/java/com/example/solidconnection/application/domain/Application.java

@@ -7,12 +7,10 @@
 import jakarta.persistence.Entity;
 import jakarta.persistence.EnumType;
 import jakarta.persistence.Enumerated;
-import jakarta.persistence.FetchType;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.Index;
-import jakarta.persistence.ManyToOne;
 import jakarta.persistence.Table;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -75,15 +73,15 @@ public class Application {
     @Column(name = "third_choice_university_info_for_apply_id")
     private Long thirdChoiceUnivApplyInfoId;
 
-    @ManyToOne(fetch = FetchType.LAZY)
-    private SiteUser siteUser;
+    @Column(name = "site_user_id")
+    private long siteUserId;
 
     public Application(
             SiteUser siteUser,
             Gpa gpa,
             LanguageTest languageTest,
             String term) {
-        this.siteUser = siteUser;
+        this.siteUserId = siteUser.getId();
         this.gpa = gpa;
         this.languageTest = languageTest;
         this.term = term;
@@ -101,7 +99,7 @@ public Application(
             Long secondChoiceUnivApplyInfoId,
             Long thirdChoiceUnivApplyInfoId,
             String nicknameForApply) {
-        this.siteUser = siteUser;
+        this.siteUserId = siteUser.getId();
         this.gpa = gpa;
         this.languageTest = languageTest;
         this.term = term;
@@ -122,7 +120,7 @@ public Application(
             Long secondChoiceUnivApplyInfoId,
             Long thirdChoiceUnivApplyInfoId,
             String nicknameForApply) {
-        this.siteUser = siteUser;
+        this.siteUserId = siteUser.getId();
         this.gpa = gpa;
         this.languageTest = languageTest;
         this.term = term;

src/main/java/com/example/solidconnection/application/dto/ApplicantsResponse.java

@@ -5,6 +5,7 @@
 import com.example.solidconnection.university.domain.UnivApplyInfo;
 
 import java.util.List;
+import java.util.Objects;
 
 public record ApplicantsResponse(
         String koreanName,
@@ -24,6 +25,6 @@ public static ApplicantsResponse of(UnivApplyInfo univApplyInfo, List<Applicatio
     }
 
     private static boolean isUsers(Application application, SiteUser siteUser) {
-        return application.getSiteUser().getId().equals(siteUser.getId());
+        return Objects.equals(application.getSiteUserId(), siteUser.getId());
     }
 }

src/main/java/com/example/solidconnection/application/repository/ApplicationRepository.java

@@ -3,7 +3,6 @@
 import com.example.solidconnection.application.domain.Application;
 import com.example.solidconnection.common.VerifyStatus;
 import com.example.solidconnection.common.exception.CustomException;
-import com.example.solidconnection.siteuser.domain.SiteUser;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
@@ -20,7 +19,6 @@ public interface ApplicationRepository extends JpaRepository<Application, Long>
     @Query("""
             SELECT a
             FROM Application a
-            JOIN FETCH a.siteUser
             WHERE (a.firstChoiceUnivApplyInfoId IN :univApplyInfoIds
                 OR a.secondChoiceUnivApplyInfoId IN :univApplyInfoIds
                 OR a.thirdChoiceUnivApplyInfoId IN :univApplyInfoIds)
@@ -33,14 +31,14 @@ public interface ApplicationRepository extends JpaRepository<Application, Long>
     @Query("""
             SELECT a
             FROM Application a
-            WHERE a.siteUser = :siteUser
+            WHERE a.siteUserId = :siteUserId
                 AND a.term = :term
                 AND a.isDelete = false
             """)
-    Optional<Application> findBySiteUserAndTerm(@Param("siteUser") SiteUser siteUser, @Param("term") String term);
+    Optional<Application> findBySiteUserIdAndTerm(@Param("siteUserId") long siteUserId, @Param("term") String term);
 
-    default Application getApplicationBySiteUserAndTerm(SiteUser siteUser, String term) {
-        return findBySiteUserAndTerm(siteUser, term)
+    default Application getApplicationBySiteUserIdAndTerm(long siteUserId, String term) {
+        return findBySiteUserIdAndTerm(siteUserId, term)
                 .orElseThrow(() -> new CustomException(APPLICATION_NOT_FOUND));
     }
 }

src/main/java/com/example/solidconnection/application/service/ApplicationQueryService.java

@@ -56,7 +56,7 @@ public ApplicationsResponse getApplicants(SiteUser siteUser, String regionCode,
 
     @Transactional(readOnly = true)
     public ApplicationsResponse getApplicantsByUserApplications(SiteUser siteUser) {
-        Application userLatestApplication = applicationRepository.getApplicationBySiteUserAndTerm(siteUser, term);
+        Application userLatestApplication = applicationRepository.getApplicationBySiteUserIdAndTerm(siteUser.getId(), term);
 
         List<Long> univApplyInfoIds = Stream.of(
                         userLatestApplication.getFirstChoiceUnivApplyInfoId(),
@@ -120,7 +120,7 @@ private List<ApplicantsResponse> createUniversityApplicantsResponses(
 
     @Transactional(readOnly = true)
     public void validateSiteUserCanViewApplicants(SiteUser siteUser) {
-        VerifyStatus verifyStatus = applicationRepository.getApplicationBySiteUserAndTerm(siteUser, term).getVerifyStatus();
+        VerifyStatus verifyStatus = applicationRepository.getApplicationBySiteUserIdAndTerm(siteUser.getId(), term).getVerifyStatus();
         if (verifyStatus != VerifyStatus.APPROVED) {
             throw new CustomException(APPLICATION_NOT_APPROVED);
         }

src/main/java/com/example/solidconnection/application/service/ApplicationSubmissionService.java

@@ -50,7 +50,7 @@ public ApplicationSubmissionResponse apply(SiteUser siteUser, ApplyRequest apply
         Long secondChoiceUnivApplyInfoId = univApplyInfoChoiceRequest.secondChoiceUnivApplyInfoId();
         Long thirdChoiceUnivApplyInfoId = univApplyInfoChoiceRequest.thirdChoiceUnivApplyInfoId();
 
-        Optional<Application> existingApplication = applicationRepository.findBySiteUserAndTerm(siteUser, term);
+        Optional<Application> existingApplication = applicationRepository.findBySiteUserIdAndTerm(siteUser.getId(), term);
         int updateCount = existingApplication
                 .map(application -> {
                     validateUpdateLimitNotExceed(application);
@@ -78,7 +78,7 @@ public ApplicationSubmissionResponse apply(SiteUser siteUser, ApplyRequest apply
     }
 
     private GpaScore getValidGpaScore(SiteUser siteUser, Long gpaScoreId) {
-        GpaScore gpaScore = gpaScoreRepository.findGpaScoreBySiteUserAndId(siteUser, gpaScoreId)
+        GpaScore gpaScore = gpaScoreRepository.findGpaScoreBySiteUserIdAndId(siteUser.getId(), gpaScoreId)
                 .orElseThrow(() -> new CustomException(GPA_SCORE_NOT_FOUND));
         if (gpaScore.getVerifyStatus() != VerifyStatus.APPROVED) {
             throw new CustomException(INVALID_GPA_SCORE_STATUS);
@@ -88,7 +88,7 @@ private GpaScore getValidGpaScore(SiteUser siteUser, Long gpaScoreId) {
 
     private LanguageTestScore getValidLanguageTestScore(SiteUser siteUser, Long languageTestScoreId) {
         LanguageTestScore languageTestScore = languageTestScoreRepository
-                .findLanguageTestScoreBySiteUserAndId(siteUser, languageTestScoreId)
+                .findLanguageTestScoreBySiteUserIdAndId(siteUser.getId(), languageTestScoreId)
                 .orElseThrow(() -> new CustomException(INVALID_LANGUAGE_TEST_SCORE));
         if (languageTestScore.getVerifyStatus() != VerifyStatus.APPROVED) {
             throw new CustomException(INVALID_LANGUAGE_TEST_SCORE_STATUS);

src/main/java/com/example/solidconnection/location/country/domain/Country.java

@@ -1,10 +1,8 @@
 package com.example.solidconnection.location.country.domain;
 
-import com.example.solidconnection.location.region.domain.Region;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
-import jakarta.persistence.ManyToOne;
 import lombok.AccessLevel;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
@@ -23,12 +21,12 @@ public class Country {
     @Column(nullable = false, length = 100)
     private String koreanName;
 
-    @ManyToOne
-    private Region region;
+    @Column(name="region_code")
+    private String regionCode;
 
-    public Country(String code, String koreanName, Region region) {
+    public Country(String code, String koreanName, String regionCode) {
         this.code = code;
         this.koreanName = koreanName;
-        this.region = region;
+        this.regionCode = regionCode;
     }
 }

src/main/java/com/example/solidconnection/location/country/domain/InterestedCountry.java

@@ -1,11 +1,11 @@
 package com.example.solidconnection.location.country.domain;
 
 import com.example.solidconnection.siteuser.domain.SiteUser;
+import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
-import jakarta.persistence.ManyToOne;
 import jakarta.persistence.Table;
 import jakarta.persistence.UniqueConstraint;
 import lombok.AccessLevel;
@@ -27,14 +27,14 @@ public class InterestedCountry {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @ManyToOne
-    private SiteUser siteUser;
+    @Column(name="site_user_id")
+    private long siteUserId;
 
-    @ManyToOne
-    private Country country;
+    @Column(name="country_code")
+    private String countryCode;
 
     public InterestedCountry(SiteUser siteUser, Country country) {
-        this.siteUser = siteUser;
-        this.country = country;
+        this.siteUserId = siteUser.getId();
+        this.countryCode = country.getCode();
     }
 }

src/main/java/com/example/solidconnection/location/country/repository/InterestedCountryRepository.java

@@ -1,12 +1,11 @@
 package com.example.solidconnection.location.country.repository;
 
 import com.example.solidconnection.location.country.domain.InterestedCountry;
-import com.example.solidconnection.siteuser.domain.SiteUser;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;
 
 public interface InterestedCountryRepository extends JpaRepository<InterestedCountry, Long> {
 
-    List<InterestedCountry> findAllBySiteUser(SiteUser siteUser);
+    List<InterestedCountry> findAllBySiteUserId(long siteUserId);
 }

src/main/java/com/example/solidconnection/location/region/domain/InterestedRegion.java

@@ -1,11 +1,11 @@
 package com.example.solidconnection.location.region.domain;
 
 import com.example.solidconnection.siteuser.domain.SiteUser;
+import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
-import jakarta.persistence.ManyToOne;
 import jakarta.persistence.Table;
 import jakarta.persistence.UniqueConstraint;
 import lombok.AccessLevel;
@@ -27,14 +27,14 @@ public class InterestedRegion {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @ManyToOne
-    private SiteUser siteUser;
+    @Column(name="site_user_id")
+    private long siteUserId;
 
-    @ManyToOne
-    private Region region;
+    @Column(name="region_code")
+    private String regionCode;
 
     public InterestedRegion(SiteUser siteUser, Region region) {
-        this.siteUser = siteUser;
-        this.region = region;
+        this.siteUserId = siteUser.getId();
+        this.regionCode = region.getCode();
     }
 }

src/main/java/com/example/solidconnection/location/region/repository/InterestedRegionRepository.java

@@ -8,5 +8,5 @@
 
 public interface InterestedRegionRepository extends JpaRepository<InterestedRegion, Long> {
 
-    List<InterestedRegion> findAllBySiteUser(SiteUser siteUser);
+    List<InterestedRegion> findAllBySiteUserId(long siteUserId);
 }

src/main/java/com/example/solidconnection/score/domain/GpaScore.java

@@ -12,7 +12,6 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
-import jakarta.persistence.ManyToOne;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -38,24 +37,15 @@ public class GpaScore extends BaseEntity {
 
     private String rejectedReason;
 
-    @ManyToOne
-    private SiteUser siteUser;
+    private long siteUserId;
 
     public GpaScore(Gpa gpa, SiteUser siteUser) {
         this.gpa = gpa;
-        this.siteUser = siteUser;
+        this.siteUserId = siteUser.getId();
         this.verifyStatus = VerifyStatus.PENDING;
         this.rejectedReason = null;
     }
 
-    public void setSiteUser(SiteUser siteUser) {
-        if (this.siteUser != null) {
-            this.siteUser.getGpaScoreList().remove(this);
-        }
-        this.siteUser = siteUser;
-        siteUser.getGpaScoreList().add(this);
-    }
-
     public void updateGpaScore(Gpa gpa, VerifyStatus verifyStatus, String rejectedReason) {
         this.gpa = gpa;
         this.verifyStatus = verifyStatus;

src/main/java/com/example/solidconnection/score/domain/LanguageTestScore.java

@@ -12,7 +12,6 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
-import jakarta.persistence.ManyToOne;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -38,21 +37,12 @@ public class LanguageTestScore extends BaseEntity {
 
     private String rejectedReason;
 
-    @ManyToOne
-    private SiteUser siteUser;
+    private long siteUserId;
 
     public LanguageTestScore(LanguageTest languageTest, SiteUser siteUser) {
         this.languageTest = languageTest;
         this.verifyStatus = VerifyStatus.PENDING;
-        this.siteUser = siteUser;
-    }
-
-    public void setSiteUser(SiteUser siteUser) {
-        if (this.siteUser != null) {
-            this.siteUser.getLanguageTestScoreList().remove(this);
-        }
-        this.siteUser = siteUser;
-        siteUser.getLanguageTestScoreList().add(this);
+        this.siteUserId = siteUser.getId();
     }
 
     public void updateLanguageTestScore(LanguageTest languageTest, VerifyStatus verifyStatus, String rejectedReason) {

src/main/java/com/example/solidconnection/score/repository/GpaScoreRepository.java

@@ -2,14 +2,16 @@
 
 import com.example.solidconnection.score.domain.GpaScore;
 import com.example.solidconnection.score.repository.custom.GpaScoreFilterRepository;
-import com.example.solidconnection.siteuser.domain.SiteUser;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
 import java.util.Optional;
 
 public interface GpaScoreRepository extends JpaRepository<GpaScore, Long>, GpaScoreFilterRepository {
 
-    Optional<GpaScore> findGpaScoreBySiteUser(SiteUser siteUser);
+    Optional<GpaScore> findGpaScoreBySiteUserId(long siteUserId);
 
-    Optional<GpaScore> findGpaScoreBySiteUserAndId(SiteUser siteUser, Long id);
+    Optional<GpaScore> findGpaScoreBySiteUserIdAndId(long siteUserId, Long id);
+
+    List<GpaScore> findBySiteUserId(long siteUserId);
 }

src/main/java/com/example/solidconnection/score/repository/LanguageTestScoreRepository.java

@@ -2,15 +2,17 @@
 
 import com.example.solidconnection.score.domain.LanguageTestScore;
 import com.example.solidconnection.score.repository.custom.LanguageTestScoreFilterRepository;
-import com.example.solidconnection.siteuser.domain.SiteUser;
 import com.example.solidconnection.university.domain.LanguageTestType;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
 import java.util.Optional;
 
 public interface LanguageTestScoreRepository extends JpaRepository<LanguageTestScore, Long>, LanguageTestScoreFilterRepository {
 
-    Optional<LanguageTestScore> findLanguageTestScoreBySiteUserAndLanguageTest_LanguageTestType(SiteUser siteUser, LanguageTestType languageTestType);
+    Optional<LanguageTestScore> findLanguageTestScoreBySiteUserIdAndLanguageTest_LanguageTestType(long siteUserId, LanguageTestType languageTestType);
 
-    Optional<LanguageTestScore> findLanguageTestScoreBySiteUserAndId(SiteUser siteUser, Long id);
+    Optional<LanguageTestScore> findLanguageTestScoreBySiteUserIdAndId(long siteUserId, Long id);
+
+    List<LanguageTestScore> findBySiteUserId(long siteUserId);
 }

src/main/java/com/example/solidconnection/score/repository/custom/GpaScoreFilterRepositoryImpl.java

@@ -70,7 +70,7 @@ public Page<GpaScoreSearchResponse> searchGpaScores(ScoreSearchCondition conditi
         List<GpaScoreSearchResponse> content = queryFactory
                 .select(GPA_SCORE_SEARCH_RESPONSE_PROJECTION)
                 .from(gpaScore)
-                .join(gpaScore.siteUser, siteUser)
+                .join(siteUser).on(gpaScore.siteUserId.eq(siteUser.id))
                 .where(
                         verifyStatusEq(condition.verifyStatus()),
                         nicknameContains(condition.nickname()),
@@ -84,7 +84,7 @@ public Page<GpaScoreSearchResponse> searchGpaScores(ScoreSearchCondition conditi
         Long totalCount = queryFactory
                 .select(gpaScore.count())
                 .from(gpaScore)
-                .join(gpaScore.siteUser, siteUser)
+                .join(siteUser).on(gpaScore.siteUserId.eq(siteUser.id))
                 .where(
                         verifyStatusEq(condition.verifyStatus()),
                         nicknameContains(condition.nickname()),