fix:解决企微环境新建考试报错问题

src/modules/task-center/train-task/components/RelatedExamDrawer.jsx

@@ -2,7 +2,7 @@
  * @Author: yuananting
  * @Date: 2021-08-03 17:05:32
  * @LastEditors: yuananting
- * @LastEditTime: 2021-08-16 16:36:59
+ * @LastEditTime: 2021-08-17 10:55:01
  * @Description: 新建培训任务-关联考试抽屉
  * @Copyrigh: © 2020 杭州杰竞科技有限公司 版权所有
  * @@Copyrigh: © 2020 杭州杰竞科技有限公司 版权所有
@@ -305,10 +305,16 @@ function RelatedExamDrawer(props) {
       {showPaperModal && (
         <SelectPaperModal
           onSelect={(info) => {
-            const contentList = props.stageList.map((item) => {
-              return item.contentList;
+            let newContentList = [];
+            props.stageList.map((item) => {
+              if (item.contentList && item.contentList.length > 0) {
+                item.contentList.map((childItem) => {
+                  newContentList.push(childItem);
+                });
+              }
             });
-            const existedPaperId = contentList.flat().filter((item) => {
+            console.log('newContentList', newContentList);
+            const existedPaperId = newContentList.filter((item) => {
               return item.paperId === info.paperId;
             });
             if (existedPaperId.length > 0) {