Refactor: 기수 이름 대신 숫자로 변경 (#28)

src/main/java/cotato/csquiz/domain/dto/generation/AddGenerationRequest.java

@@ -4,7 +4,7 @@
 
 @Getter
 public class AddGenerationRequest {
-    private String generationName;
+    private int generationNumber;
     private int startYear;
     private int startMonth;
     private int startDay;

src/main/java/cotato/csquiz/domain/dto/generation/GenerationInfoResponse.java

@@ -0,0 +1,16 @@
+package cotato.csquiz.domain.dto.generation;
+
+import cotato.csquiz.domain.entity.Generation;
+
+public record GenerationInfoResponse(
+        Long generationId,
+        int generationNumber
+) {
+
+    public static GenerationInfoResponse from(Generation generation) {
+        return new GenerationInfoResponse(
+                generation.getId(),
+                generation.getNumber()
+        );
+    }
+}

src/main/java/cotato/csquiz/domain/dto/member/MemberEnrollInfoResponse.java

@@ -16,14 +16,14 @@ public class MemberEnrollInfoResponse {
     private Long id;
     private String name;
     private MemberPosition position;
-    private String generationName;
+    private int generationNumber;
 
     public static MemberEnrollInfoResponse from(Member member) {
         return new MemberEnrollInfoResponse(
                 member.getId(),
                 member.getName(),
                 member.getPosition(),
-                member.getGeneration().getName()
+                member.getGeneration().getNumber()
         );
     }
 }

src/main/java/cotato/csquiz/domain/entity/Generation.java

@@ -22,8 +22,8 @@ public class Generation extends BaseTimeEntity {
     @Column(name = "generation_id")
     private Long id;
 
-    @Column(name = "generation_name", unique = true, nullable = false)
-    private String name;
+    @Column(name = "generation_number", unique = true, nullable = false)
+    private int number;
 
     @Column(name = "generation_start_date")
     private LocalDate startDate;
@@ -35,8 +35,8 @@ public class Generation extends BaseTimeEntity {
     private Boolean isRecruit;
 
     @Builder
-    public Generation(String name, LocalDate startDate, LocalDate endDate) {
-        this.name = name;
+    public Generation(int number, LocalDate startDate, LocalDate endDate) {
+        this.number = number;
         this.startDate = startDate;
         this.endDate = endDate;
         isRecruit = false;

src/main/java/cotato/csquiz/exception/ErrorCode.java

@@ -9,7 +9,7 @@
 public enum ErrorCode {
 
     WEBSOCKET_SEND_EXCEPTION(HttpStatus.INTERNAL_SERVER_ERROR, "소캣 메세지 전송 실패"),
-    GENERATION_NAME_EXIST(HttpStatus.CONFLICT, "이미 이름이 있습니다"),
+    GENERATION_NUMBER_EXIST(HttpStatus.CONFLICT, "같은 숫자의 기수가 있습니다"),
     EDUCATION_EXIST(HttpStatus.CONFLICT, "이미 교육이 존재합니다"),
     IMAGE_PROCESSING_FAIL(HttpStatus.INTERNAL_SERVER_ERROR, "이미지 처리에 실패했습니다."),
     IMAGE_NOT_FOUND(HttpStatus.NOT_FOUND, "변경할 이미지가 없습니다"),

src/main/java/cotato/csquiz/repository/GenerationRepository.java

@@ -2,11 +2,9 @@
 
 import cotato.csquiz.domain.entity.Generation;
 import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.Query;
 
-import java.util.List;
 import java.util.Optional;
 
 public interface GenerationRepository extends JpaRepository<Generation, Long> {
-    Optional<Generation> findByName(String name);
+    Optional<Generation> findByNumber(int number);
 }

src/main/java/cotato/csquiz/service/GenerationService.java

@@ -4,20 +4,18 @@
 import cotato.csquiz.domain.dto.generation.AddGenerationResponse;
 import cotato.csquiz.domain.dto.generation.ChangePeriodRequest;
 import cotato.csquiz.domain.dto.generation.ChangeRecruitingRequest;
-import cotato.csquiz.domain.dto.generation.GenerationInfo;
+import cotato.csquiz.domain.dto.generation.GenerationInfoResponse;
 import cotato.csquiz.domain.entity.Generation;
 import cotato.csquiz.exception.AppException;
 import cotato.csquiz.exception.ErrorCode;
 import cotato.csquiz.repository.GenerationRepository;
+import java.time.LocalDate;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.time.LocalDate;
-import java.util.List;
-import java.util.Optional;
-
 @Service
 @RequiredArgsConstructor
 @Transactional
@@ -31,9 +29,9 @@ public AddGenerationResponse addGeneration(AddGenerationRequest request) {
         LocalDate startDate = LocalDate.of(request.getStartYear(), request.getStartMonth(), request.getStartDay());
         LocalDate endDate = LocalDate.of(request.getEndYear(), request.getEndMonth(), request.getEndDay());
         checkPeriodValid(startDate, endDate);
-        checkNameValid(request.getGenerationName());
+        checkNumberValid(request.getGenerationNumber());
         Generation generation = Generation.builder()
-                .name(request.getGenerationName())
+                .number(request.getGenerationNumber())
                 .startDate(startDate)
                 .endDate(endDate)
                 .build();
@@ -59,35 +57,28 @@ public void changePeriod(ChangePeriodRequest request) {
         Generation generation = generationRepository.findById(request.getGenerationId()).orElseThrow(
                 () -> new AppException(ErrorCode.DATA_NOTFOUND));
         generation.changePeriod(startDate, endDate);
-        log.info("change date "+startDate+ " " + endDate);
+        log.info("change date " + startDate + " " + endDate);
     }
 
     //기수 목록 알려주기
-    public List<GenerationInfo> getGenerations(){
+    public List<GenerationInfoResponse> getGenerations() {
         List<Generation> generations = generationRepository.findAll();
         return generations.stream()
-                .map(this::buildGenerationInfo).toList();
+                .map(GenerationInfoResponse::from)
+                .toList();
     }
 
     //시작 날짜가 끝나는 날짜보다 뒤면 오류 처리
     private void checkPeriodValid(LocalDate startDate, LocalDate endDate) {
-        if(endDate.isBefore(startDate)){
+        if (endDate.isBefore(startDate)) {
             log.info("날짜 오류");
             throw new AppException(ErrorCode.DATE_INVALID);
         }
     }
 
-    private void checkNameValid(String generationName) {
-        Optional<Generation> generation = generationRepository.findByName(generationName);
-        if(generation.isPresent()){
-            throw new AppException(ErrorCode.GENERATION_NAME_EXIST);
+    private void checkNumberValid(int generationNumber) {
+        if (generationRepository.findByNumber(generationNumber).isPresent()) {
+            throw new AppException(ErrorCode.GENERATION_NUMBER_EXIST);
         }
     }
-
-    private GenerationInfo buildGenerationInfo(Generation generation) {
-        return GenerationInfo.builder()
-                .generationId(generation.getId())
-                .generationName(generation.getName())
-                .build();
-    }
 }