feat: Response 객체에서 Pagination의 공통 로직을 처리하는 PaginationResponse 구현 #92

backend/src/common/dto/PaginationResponse.ts

@@ -0,0 +1,13 @@
+export abstract class PaginationResponse {
+  readonly totalPages: number;
+  readonly currentPage: number;
+
+  protected constructor(
+    totalCount: number,
+    pageSize: number,
+    currentPage: number,
+  ) {
+    this.totalPages = Math.ceil(totalCount / pageSize);
+    this.currentPage = currentPage;
+  }
+}

backend/src/course/dto/PagedCourseResponse.ts

@@ -0,0 +1,13 @@
+import { CourseListResponse } from './CourseListResponse';
+import { PaginationResponse } from '../../common/dto/PaginationResponse';
+
+export class OwnCourseListResponse extends PaginationResponse {
+  constructor(
+    readonly courses: CourseListResponse[],
+    totalCount: number,
+    currentPage: number,
+    pageSize: number,
+  ) {
+    super(totalCount, pageSize, currentPage);
+  }
+}