feat: 지도에 썸네일 수정 기능 추가, 수정 정보가 없을 때 에러 응답 #177

backend/src/course/course.controller.ts

@@ -74,6 +74,10 @@ export class CourseController {
     @Param('id') id: number,
     @Body() updateCourseInfoRequest: UpdateCourseInfoRequest,
   ) {
+    if (updateCourseInfoRequest.isEmpty()) {
+      throw new BadRequestException('수정할 정보가 없습니다.');
+    }
+
     await this.courseService.updateCourseInfo(id, updateCourseInfoRequest);
     return { id, ...updateCourseInfoRequest };
   }

backend/src/course/dto/UpdateCourseInfoRequest.ts

@@ -1,13 +1,19 @@
-import { IsNotEmpty, IsString } from 'class-validator';
+import { IsString, IsUrl, IsOptional } from 'class-validator';
 
 export class UpdateCourseInfoRequest {
+  @IsOptional()
   @IsString()
-  @IsNotEmpty()
-  title: string;
+  title?: string;
 
+  @IsOptional()
   @IsString()
   description?: string;
 
-  @IsString()
+  @IsOptional()
+  @IsUrl()
   thumbnailUrl?: string;
+
+  isEmpty(): boolean {
+    return !this.title && !this.description && !this.thumbnailUrl;
+  }
 }

backend/src/map/dto/UpdateMapInfoRequest.ts

@@ -1,10 +1,19 @@
-import { IsString, IsNotEmpty } from 'class-validator';
+import { IsString, IsUrl, IsOptional } from 'class-validator';
 
 export class UpdateMapInfoRequest {
+  @IsOptional()
   @IsString()
-  @IsNotEmpty()
-  title: string;
+  title?: string;
 
+  @IsOptional()
   @IsString()
   description?: string;
+
+  @IsOptional()
+  @IsUrl()
+  thumbnailUrl?: string;
+
+  isEmpty(): boolean {
+    return !this.title && !this.description && !this.thumbnailUrl;
+  }
 }

backend/src/map/map.controller.ts

@@ -67,6 +67,10 @@ export class MapController {
     @Param('id') id: number,
     @Body() updateMapInfoRequest: UpdateMapInfoRequest,
   ) {
+    if (updateMapInfoRequest.isEmpty()) {
+      throw new BadRequestException('수정할 정보가 없습니다.');
+    }
+
     await this.mapService.updateMapInfo(id, updateMapInfoRequest);
     return { id, ...updateMapInfoRequest };
   }