refactor: 메서드 네이밍 변경

market-api/src/main/java/com/server/market/application/product/ProductService.java

@@ -34,7 +34,7 @@ public Long uploadProduct(final Long memberId, final Long categoryId, final Prod
     }
 
     public Product addViewCount(final Long productId, final Boolean canAddViewCount) {
-        Product product = findBoardWithPessimisticLock(productId);
+        Product product = findProductWithPessimisticLock(productId);
         product.view(canAddViewCount);
         return product;
     }
@@ -69,25 +69,25 @@ private Product findProduct(final Long productId) {
                 .orElseThrow(ProductNotFoundException::new);
     }
 
-    private Product findBoardWithPessimisticLock(final Long productId) {
+    private Product findProductWithPessimisticLock(final Long productId) {
         return productRepository.findByIdWithPessimisticLock(productId)
                 .orElseThrow(ProductNotFoundException::new);
     }
 
     public boolean likes(final Long productId, final Long memberId) {
-        Product product = findProduct(productId);
-        boolean isNeedToIncrease = isNeedToIncreaseLikeCount(productId, memberId);
-        product.likes(isNeedToIncrease);
-        return isNeedToIncrease;
+        Product product = findProductWithPessimisticLock(productId);
+        boolean shouldIncreaseLikeCount = shouldIncreaseLikeCount(productId, memberId);
+        product.likes(shouldIncreaseLikeCount);
+        return shouldIncreaseLikeCount;
     }
 
-    private boolean isNeedToIncreaseLikeCount(final Long productId, final Long memberId) {
+    private boolean shouldIncreaseLikeCount(final Long productId, final Long memberId) {
         if (productRepository.existsProductLikeByProductIdAndMemberId(productId, memberId)) {
             productRepository.deleteProductLikeByProductIdAndMemberId(productId, memberId);
             return false;
         }
 
-        productRepository.saveProductLike(new ProductLike(productId, memberId));
+        productRepository.saveProductLike(ProductLike.from(memberId, productId));
         return true;
     }
 }

market-api/src/main/java/com/server/market/domain/product/ProductLike.java

@@ -34,8 +34,10 @@ public class ProductLike extends BaseEntity {
     @Column(nullable = false)
     private Long productId;
 
-    public ProductLike(final Long memberId, final Long productId) {
-        this.memberId = memberId;
-        this.productId = productId;
+    public static ProductLike from(final Long memberId, final Long productId) {
+        return ProductLike.builder()
+                .memberId(memberId)
+                .productId(productId)
+                .build();
     }
 }

market-api/src/main/java/com/server/market/infrastructure/product/ProductLikeJpaRepository.java

@@ -2,10 +2,13 @@
 
 import com.server.market.domain.product.ProductLike;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 
 public interface ProductLikeJpaRepository extends JpaRepository<ProductLike, Long> {
 
-    boolean existsByProductIdAndMemberId(Long productId, Long memberId);
+    @Query("SELECT CASE WHEN COUNT(pl) > 0 THEN true ELSE false END FROM ProductLike pl WHERE pl.productId = :productId AND pl.memberId = :memberId")
+    boolean existsByProductIdAndMemberId(@Param("productId") Long productId, @Param("memberId") Long memberId);
 
     void deleteByProductIdAndMemberId(Long productId, Long memberId);
 }

market-api/src/main/java/com/server/market/ui/product/ProductController.java

@@ -86,10 +86,11 @@ public ResponseEntity<List<ProductPagingSimpleResponse>> findLikesProduct(
 
     @PatchMapping("/{categoryId}/products/{productId}/likes")
     public ResponseEntity<Boolean> likesProduct(
-            @PathVariable("productId") final Long productId,
             @PathVariable("categoryId") final Long categoryId,
+            @PathVariable("productId") final Long productId,
             @AuthMember final Long memberId
     ) {
+        System.out.println("gogo " + memberId + " " + productId);
         boolean likes = productService.likes(productId, memberId);
         return ResponseEntity.ok(likes);
     }