UMC 6주차 과제

src/main/java/com/example/UMC/domain/review/config/QuerydslConfig.java

@@ -0,0 +1,19 @@
+package com.example.UMC.domain.review.config;
+
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import jakarta.persistence.EntityManager;
+import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@RequiredArgsConstructor
+public class QuerydslConfig {
+
+    private final EntityManager em;
+
+    @Bean
+    public JPAQueryFactory jpaQueryFactory() {
+        return new JPAQueryFactory(em);
+    }
+}

src/main/java/com/example/UMC/domain/review/controller/ReviewController.java

@@ -0,0 +1,37 @@
+package com.example.UMC.domain.review.controller;
+
+import com.example.UMC.domain.review.entity.Review;
+import com.example.UMC.domain.review.repository.ReviewQueryRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/reviews")
+public class ReviewController {
+
+    private final ReviewQueryRepository reviewQueryRepository;
+
+    // 태스트 컨틀로러
+
+    /**
+     *  현재 이코드는 무한순회가 도는중 유저 - 리뷰 가 양방향 매핑이라 그래서 entity구조 그대로 하고 무한순회 안돌게
+     *  DTO사용이 필요해 보임.
+     */
+    @GetMapping
+    public Page<Review> getReviews(
+            @RequestParam(required = false) Long storeId,
+            @RequestParam(required = false) String storeName,
+            @RequestParam(required = false) Long regionId,
+            @RequestParam(required = false) Integer star,
+            @RequestParam(defaultValue = "0") int page,
+            @RequestParam(defaultValue = "10") int size
+    ) {
+        Pageable pageable = PageRequest.of(page, size);
+        return reviewQueryRepository.findReviews(storeId, storeName, regionId, star, pageable);
+    }
+}
+

src/main/java/com/example/UMC/domain/review/entity/Review.java

@@ -26,6 +26,9 @@ public class Review extends BaseEntity {
     @Column(name = "content", columnDefinition = "TEXT")
     private String content;
 
+    @Column(name = "reply", length = 255)
+    private String reply;
+
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "user_id", nullable = false)
     private User user;

src/main/java/com/example/UMC/domain/review/repository/ReviewQueryRepository.java

@@ -0,0 +1,16 @@
+package com.example.UMC.domain.review.repository;
+
+import com.example.UMC.domain.review.entity.Review;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+public interface ReviewQueryRepository {
+
+    Page<Review> findReviews(
+            Long storeId,         // 가게ID 필터
+            String storeName,     // 가게명 필터
+            Long regionId,        // 지역ID 필터
+            Integer star,         // 별점 필터
+            Pageable pageable     // 페이징
+    );
+}

src/main/java/com/example/UMC/domain/review/repository/ReviewQueryRepositoryImpl.java

@@ -0,0 +1,73 @@
+package com.example.UMC.domain.review.repository;
+
+import com.example.UMC.domain.review.entity.QReview;
+import com.example.UMC.domain.review.entity.Review;
+import com.example.UMC.domain.store.entity.QRegion;
+import com.example.UMC.domain.store.entity.QStore;
+import com.example.UMC.domain.user.entity.QUser;
+import com.querydsl.core.BooleanBuilder;
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.stereotype.Repository;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+import java.util.List;
+
+@Repository
+@Primary //컨트롤러 테스트 용도로 잠시 붙힘
+@RequiredArgsConstructor
+public class ReviewQueryRepositoryImpl implements ReviewQueryRepository {
+
+    private final JPAQueryFactory queryFactory;
+
+    @Override
+    public Page<Review> findReviews(Long storeId, String storeName, Long regionId, Integer star, Pageable pageable) {
+        // Q클래스들 import
+        QReview review = QReview.review;
+        QStore store = QStore.store;
+        QUser user = QUser.user;
+        QRegion region = QRegion.region;
+
+        BooleanBuilder where = new BooleanBuilder();
+
+        if (storeId != null) {
+            where.and(store.id.eq(storeId));
+        } else if (storeName != null && !storeName.isBlank()) {
+            where.and(store.name.containsIgnoreCase(storeName));
+        }
+
+        if (regionId != null) {
+            where.and(region.id.eq(regionId));
+        }
+
+        if (star != null) {
+            where.and(review.rating.eq(star));
+        }
+
+        List<Review> content = queryFactory
+                .selectFrom(review)
+                .join(review.user, user).fetchJoin()
+                .join(review.store, store).fetchJoin()
+                .join(review.region, region).fetchJoin()
+                .where(where)
+                .orderBy(review.createdAt.desc())
+                .offset(pageable.getOffset())
+                .limit(pageable.getPageSize())
+                .fetch();
+
+        Long total = queryFactory
+                .select(review.count())
+                .from(review)
+                .join(review.user, user)
+                .join(review.store, store)
+                .join(review.region, region)
+                .where(where)
+                .fetchOne();
+
+        return new PageImpl<>(content, pageable, total == null ? 0 : total);
+    }
+}
+

src/main/java/com/example/UMC/domain/review/repository/ReviewRepository.java

@@ -7,7 +7,7 @@
 
 import java.util.List;
 
-public interface ReviewRepository extends JpaRepository<Review, Long> {
+public interface ReviewRepository extends JpaRepository<Review, Long>, ReviewQueryRepository {