修复视频课编辑

cooleshow-user/user-biz/src/main/java/com/yonge/cooleshow/biz/dal/service/impl/VideoLessonGroupDetailServiceImpl.java

@@ -60,7 +60,7 @@ import com.yonge.cooleshow.biz.dal.vo.VideoLessonStudentVo;
 import com.yonge.toolset.utils.json.JsonUtil;
 
 /**
- * VideoLessonGroupDetailService服务实现类
+ * VideoLessonGroupDetailService服务实现类ø
  * @author yzp
  * @date 2022-03-26 00:01:38
  * @version v1.0

cooleshow-user/user-biz/src/main/java/com/yonge/cooleshow/biz/dal/service/impl/VideoLessonGroupServiceImpl.java

@@ -6,9 +6,11 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.google.common.collect.Lists;
 import com.yonge.cooleshow.biz.dal.dto.CourseMusicAlbumRelationDto;
 import com.yonge.cooleshow.biz.dal.entity.CourseRelationMusicAlbum;
 import com.yonge.cooleshow.biz.dal.enums.course.CourseTypeEnum;
@@ -270,12 +272,13 @@ public class VideoLessonGroupServiceImpl extends ServiceImpl<VideoLessonGroupDao
         List<Long> updateCourseRelationIdList = new ArrayList<>();
         for (VideoLessonGroupDetailDto videoLessonGroupDetailDto : lessonList) {
             // 需要修改的关联数据
-            List<CourseMusicAlbumRelationDto> relationList = videoLessonGroupDetailDto.getRelationList();
+            List<CourseMusicAlbumRelationDto> relationList = Optional.ofNullable(videoLessonGroupDetailDto.getRelationList())
+                    .orElse(Lists.newArrayList());
 
             videoLessonGroupDetailDto.setCourseRelationMusicAlbumList(new ArrayList<>());
             // 原本的关联数据
-            List<CourseRelationMusicAlbum> oldRelationList = courseRelationMusicAlbumList.get(
-                    videoLessonGroupDetailDto.getId());
+            List<CourseRelationMusicAlbum> oldRelationList = courseRelationMusicAlbumList.getOrDefault(
+                    videoLessonGroupDetailDto.getId(), Lists.newArrayList());
 
             for (CourseMusicAlbumRelationDto courseMusicAlbumRelationDto : relationList) {
                 CourseRelationMusicAlbum courseRelationMusicAlbum = new CourseRelationMusicAlbum();