fix: Specification 만들 때, join() 과 get() 구분 실시

Author: leegwichan

src/main/java/eatda/repository/cheer/CheerRepository.java

@@ -6,6 +6,7 @@
 import eatda.domain.store.District;
 import eatda.domain.store.Store;
 import eatda.domain.store.StoreCategory;
+import jakarta.persistence.criteria.JoinType;
 import java.util.List;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
@@ -19,20 +20,26 @@ public interface CheerRepository extends JpaRepository<Cheer, Long> {
     @EntityGraph(attributePaths = {"member", "cheerTags.values"})
     List<Cheer> findAllByStoreOrderByCreatedAtDesc(Store store, PageRequest pageRequest);
 
-    default List<Cheer> findAllByConditions(@Nullable StoreCategory category, List<CheerTagName> cheerTagNames,
+    default List<Cheer> findAllByConditions(@Nullable StoreCategory category,
+                                            List<CheerTagName> cheerTagNames,
                                             List<District> districts, Pageable pageable) {
         Specification<Cheer> spec = createSpecification(category, cheerTagNames, districts);
         return findAll(spec, pageable);
     }
 
-    private Specification<Cheer> createSpecification(@Nullable StoreCategory category, List<CheerTagName> cheerTagNames,
+    private Specification<Cheer> createSpecification(@Nullable StoreCategory category,
+                                                     List<CheerTagName> cheerTagNames,
                                                      List<District> districts) {
         Specification<Cheer> spec = Specification.allOf();
         if (category != null) {
             spec = spec.and((root, query, cb) -> cb.equal(root.get("store").get("category"), category));
         }
         if (!cheerTagNames.isEmpty()) {
-            spec = spec.and(((root, query, cb) -> root.get("cheerTags").get("values").get("name").in(cheerTagNames)));
+            spec = spec.and(((root, query, cb) -> {
+                query.distinct(true);
+                return root.join("cheerTags").join("values", JoinType.LEFT)
+                        .get("name").in(cheerTagNames);
+            }));
         }
         if (!districts.isEmpty()) {
             spec = spec.and((root, query, cb) -> root.get("store").get("district").in(districts));

src/main/java/eatda/repository/store/StoreRepository.java

@@ -53,7 +53,7 @@ private Specification<Store> createSpecification(@Nullable StoreCategory categor
         }
         if (!cheerTagNames.isEmpty()) {
             spec = spec.and(((root, query, cb) ->
-                    root.join("cheers").get("cheerTags").get("values").get("name").in(cheerTagNames)));
+                    root.join("cheers").join("cheerTags").join("values").get("name").in(cheerTagNames)));
         }
         if (!districts.isEmpty()) {
             spec = spec.and((root, query, cb) -> root.get("district").in(districts));