refactor : BooleanBuilder 조합 위치 변경 (#138)

Author: Kimminu7

src/main/java/org/ezcode/codetest/infrastructure/persistence/repository/problem/ProblemQueryRepositoryImpl.java

@@ -37,13 +37,6 @@ public Page<Problem> searchByCondition(Pageable pageable, ProblemSearchCondition
 
 		builder.and(problem.isDeleted.isFalse());
 
-		JPAQuery<Problem> query = jpaQueryFactory
-			.selectDistinct(problem)
-			.from(problem)
-			.leftJoin(problemCategory).on(problem.eq(problemCategory.problem))
-			.leftJoin(problemCategory.category, category)
-			.where(builder);
-
 		// 카테고리 필터링
 		if (searchCondition.category() != null) {
 			builder.and(category.code.eq(searchCondition.category())
@@ -55,6 +48,15 @@ public Page<Problem> searchByCondition(Pageable pageable, ProblemSearchCondition
 			builder.and(problem.difficulty.eq(Difficulty.valueOf(searchCondition.difficulty())));
 		}
 
+		JPAQuery<Problem> query = jpaQueryFactory
+			.selectDistinct(problem)
+			.from(problem)
+			.leftJoin(problemCategory).on(problem.eq(problemCategory.problem))
+			.leftJoin(problemCategory.category, category)
+			.where(builder);
+
+
+
 		List<Problem> content = query
 			.offset(pageable.getOffset())
 			.limit(pageable.getPageSize())