[므느] Chapter 9. API & Paging

spring/src/main/generated/umc/spring/domain/QMission.java

@@ -27,7 +27,7 @@ public class QMission extends EntityPathBase<Mission> {
     //inherited
     public final DateTimePath<java.time.LocalDateTime> createdAt = _super.createdAt;
 
-    public final DatePath<java.time.LocalDate> dueAt = createDate("dueAt", java.time.LocalDate.class);
+    public final DateTimePath<java.time.LocalDateTime> dueAt = createDateTime("dueAt", java.time.LocalDateTime.class);
 
     public final NumberPath<Long> id = createNumber("id", Long.class);
 

spring/src/main/generated/umc/spring/domain/QReview.java

@@ -18,6 +18,8 @@ public class QReview extends EntityPathBase<Review> {
 
     private static final long serialVersionUID = 1510377220L;
 
+    private static final PathInits INITS = PathInits.DIRECT2;
+
     public static final QReview review = new QReview("review");
 
     public final umc.spring.domain.common.QBase _super = new umc.spring.domain.common.QBase(this);
@@ -33,19 +35,30 @@ public class QReview extends EntityPathBase<Review> {
 
     public final NumberPath<Integer> star = createNumber("star", Integer.class);
 
+    public final QStore store;
+
     //inherited
     public final DateTimePath<java.time.LocalDateTime> updatedAt = _super.updatedAt;
 
     public QReview(String variable) {
-        super(Review.class, forVariable(variable));
+        this(Review.class, forVariable(variable), INITS);
     }
 
     public QReview(Path<? extends Review> path) {
-        super(path.getType(), path.getMetadata());
+        this(path.getType(), path.getMetadata(), PathInits.getFor(path.getMetadata(), INITS));
     }
 
     public QReview(PathMetadata metadata) {
-        super(Review.class, metadata);
+        this(metadata, PathInits.getFor(metadata, INITS));
+    }
+
+    public QReview(PathMetadata metadata, PathInits inits) {
+        this(Review.class, metadata, inits);
+    }
+
+    public QReview(Class<? extends Review> type, PathMetadata metadata, PathInits inits) {
+        super(type, metadata, inits);
+        this.store = inits.isInitialized("store") ? new QStore(forProperty("store"), inits.get("store")) : null;
     }
 
 }

spring/src/main/generated/umc/spring/domain/QStore.java

@@ -35,6 +35,8 @@ public class QStore extends EntityPathBase<Store> {
 
     public final QRegion region;
 
+    public final NumberPath<Float> score = createNumber("score", Float.class);
+
     //inherited
     public final DateTimePath<java.time.LocalDateTime> updatedAt = _super.updatedAt;
 

spring/src/main/java/umc/spring/apipayload/code/ErrorResponse.java

@@ -12,3 +12,5 @@ public class ErrorResponse {
     private final String code;
     private final String message;
 }
+
+

spring/src/main/java/umc/spring/apipayload/exception/GeneralException.java

@@ -17,4 +17,5 @@ public ErrorResponse getErrorResponseDto() {
     public ErrorResponse getErrorResponseDtoWithHttpStatus() {
         return this.code.buildErrorDtoWithHttpStatus();
     }
+
 }

spring/src/main/java/umc/spring/apipayload/status/ErrorResponse.java

@@ -22,9 +22,13 @@ public enum ErrorResponse implements BaseErrorResponse {
     TEMP_EXCEPTION(HttpStatus.BAD_REQUEST, "TEMP4001", "이거는 테스트"),
     ARTICLE_NOT_FOUND(HttpStatus.NOT_FOUND, "ARTICLE4001", "게시글이 없습니다."),
 
+    // 요청 파라미터 관련 에러
+    INVALID_PAGE_INDEX(HttpStatus.BAD_REQUEST, "COMMON4002", "page는 1 이상의 값이어야 합니다."),
+
     // 가게 없음 에러
     STORE_NOT_FOUND(HttpStatus.BAD_REQUEST, "STORE4001", "해당 스토어가 존재하지 않습니다.");
 
+    //
     private final HttpStatus httpStatus;
     private final String code;
     private final String message;

spring/src/main/java/umc/spring/apipayload/validation/ExistingUser.java

@@ -0,0 +1,20 @@
+package umc.spring.apipayload.validation;
+
+import jakarta.validation.Constraint;
+import jakarta.validation.Payload;
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target({ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+@Constraint(validatedBy = ExistingUserValidator.class)
+@Documented
+public @interface ExistingUser {
+    String message() default "USER_NOT_FOUND";
+    Class<?>[] groups() default {};
+    Class<? extends Payload>[] payload() default {};
+}
+

spring/src/main/java/umc/spring/apipayload/validation/ExistingUserValidator.java

@@ -0,0 +1,27 @@
+package umc.spring.apipayload.validation;
+
+import jakarta.validation.ConstraintValidator;
+import jakarta.validation.ConstraintValidatorContext;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+import umc.spring.repository.user.UserRepository;
+
+@Component
+@RequiredArgsConstructor
+public class ExistingUserValidator implements ConstraintValidator<ExistingUser, Long> {
+
+    private final UserRepository userRepository;
+
+    @Override
+    public boolean isValid(Long userId, ConstraintValidatorContext context) {
+        if (userId == null) return true;  // @NotNull 로 별도 처리
+
+        boolean exists = userRepository.existsById(userId);
+        if (!exists) {
+            context.disableDefaultConstraintViolation();
+            context.buildConstraintViolationWithTemplate("MEMBER_NOT_FOUND")
+                    .addConstraintViolation();
+        }
+        return exists;
+    }
+}

spring/src/main/java/umc/spring/apipayload/validation/PageVaild.java

@@ -0,0 +1,15 @@
+package umc.spring.apipayload.validation;
+
+import jakarta.validation.Constraint;
+import jakarta.validation.Payload;
+import java.lang.annotation.*;
+
+@Documented
+@Constraint(validatedBy = umc.spring.apipayload.validation.PageValidator.class)
+@Target({ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface PageVaild {
+    String message() default "유효하지 않은 페이지 번호입니다.";
+    Class<?>[] groups() default {};
+    Class<? extends Payload>[] payload() default {};
+}

spring/src/main/java/umc/spring/apipayload/validation/PageValidator.java

@@ -0,0 +1,20 @@
+package umc.spring.apipayload.validation;
+
+import jakarta.validation.ConstraintValidator;
+import jakarta.validation.ConstraintValidatorContext;
+import umc.spring.apipayload.exception.GeneralException;
+import umc.spring.apipayload.status.ErrorResponse;
+
+
+public class PageValidator implements ConstraintValidator<PageVaild, Integer> {
+    @Override
+    public boolean isValid(Integer value, ConstraintValidatorContext context) {
+        if (value == null || value < 1) {
+            context.disableDefaultConstraintViolation();
+            context.buildConstraintViolationWithTemplate("INVALID_PAGE_INDEX").addConstraintViolation();
+            return false;
+        }
+        return true;
+    }
+}
+

spring/src/main/java/umc/spring/converter/MissionConverter.java

@@ -3,10 +3,21 @@
 import org.springframework.stereotype.Component;
 import umc.spring.domain.Mission;
 import umc.spring.web.dto.mission.AddMissionResponse;
+import umc.spring.web.dto.mission.MissionListResponse;
 
 @Component
 public class MissionConverter {
     public AddMissionResponse toResponse(Mission mission) {
         return new AddMissionResponse(mission.getId());
     }
+
+    public MissionListResponse toMissionListResponse(Mission mission) {
+        return MissionListResponse.builder()
+                .missionId(mission.getId())
+                .storeName(mission.getStore().getName())
+                .points(mission.getPoints())
+                .requirements(mission.getRequirements())
+                .dueAt(mission.getDueAt())
+                .build();
+    }
 }

spring/src/main/java/umc/spring/converter/ReviewConverter.java

@@ -3,10 +3,21 @@
 import org.springframework.stereotype.Component;
 import umc.spring.domain.Review;
 import umc.spring.web.dto.review.AddReviewResponse;
+import umc.spring.web.dto.review.ReviewListResponse;
 
 @Component
 public class ReviewConverter {
     public AddReviewResponse toResponse(Review r) {
         return new AddReviewResponse(r.getId());
     }
+
+    public ReviewListResponse toReviewListResponse(Review review) {
+        return ReviewListResponse.builder()
+                .reviewId(review.getId())
+                .content(review.getContent())
+                .star(review.getStar())
+                .createdAt(review.getCreatedAt())
+                .build();
+    }
+
 }

spring/src/main/java/umc/spring/domain/Review.java

@@ -20,6 +20,10 @@ public class Review extends Base {
     private String content;
     private int star;
 
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "store_id")
+    private Store store;
+
     @Builder.Default
     @OneToMany(
             cascade = CascadeType.ALL,

spring/src/main/java/umc/spring/repository/mission/MissionRepository.java

@@ -1,10 +1,12 @@
 package umc.spring.repository.mission;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 import umc.spring.domain.Mission;
 
 @Repository
 public interface MissionRepository extends JpaRepository<Mission, Long> {
-
+    Page<Mission> findAllByStoreId(Long storeId, Pageable pageable);
 }

spring/src/main/java/umc/spring/repository/review/ReviewRepository.java

@@ -1,9 +1,13 @@
 package umc.spring.repository.review;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 import umc.spring.domain.Review;
+import umc.spring.domain.Store;
 
 @Repository
 public interface ReviewRepository extends JpaRepository<Review, Long> {
+    Page<Review> findAllByStore(Store store, Pageable pageable);
 }

spring/src/main/java/umc/spring/repository/usermission/UserMissionRepository.java

@@ -1,8 +1,16 @@
 package umc.spring.repository.usermission;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
+import umc.spring.domain.User;
+import umc.spring.domain.enums.MissionStatus;
 import umc.spring.domain.mapping.UserMission;
 
 public interface UserMissionRepository extends JpaRepository<UserMission, Long> {
+    // 유저가 해당 미션에 참여 중인지 여부 확인
     boolean existsByUser_IdAndMission_Id(Long userId, Long missionId);
+
+    // 진행 중인 미션 조회 (페이징)
+    Page<UserMission> findAllByUserAndMissionStatus(User user, MissionStatus missionStatus, Pageable pageable);
 }

spring/src/main/java/umc/spring/service/mission/MissionService.java

@@ -1,22 +1,35 @@
 package umc.spring.service.mission;
 
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import umc.spring.apipayload.exception.GeneralException;
 import umc.spring.apipayload.status.ErrorResponse;
+import umc.spring.converter.MissionConverter;
 import umc.spring.domain.Mission;
 import umc.spring.domain.Store;
+import umc.spring.domain.User;
+import umc.spring.domain.enums.MissionStatus;
+import umc.spring.domain.mapping.UserMission;
 import umc.spring.repository.mission.MissionRepository;
 import umc.spring.repository.store.StoreRepository;
+import umc.spring.repository.user.UserRepository;
+import umc.spring.repository.usermission.UserMissionRepository;
+import umc.spring.service.usermission.UserMissionService;
 import umc.spring.web.dto.mission.AddMissionRequest;
+import umc.spring.web.dto.mission.MissionListResponse;
 
 @Service
 @RequiredArgsConstructor
 public class MissionService {
 
     private final StoreRepository storeRepo;
+    private final UserRepository userRepo;
     private final MissionRepository missionRepo;
+    private final UserMissionRepository userMissionRepo;
+    private final MissionConverter converter;
 
     @Transactional
     public Mission addMission(AddMissionRequest req) {
@@ -32,4 +45,11 @@ public Mission addMission(AddMissionRequest req) {
 
         return missionRepo.save(mission);
     }
+
+    @Transactional(readOnly = true)
+    public Page<MissionListResponse> getMissionsByStore(Long storeId, Pageable pageable) {
+        return missionRepo.findAllByStoreId(storeId, pageable)
+                .map(converter::toMissionListResponse);
+    }
+
 }