fix option category parentId

app/service/course/v5/option.js

@@ -58,7 +58,7 @@ class OptionService extends Service {
   async getOptions() {
     const { ctx } = this;
     // 分类
-    const categoryList = await ctx.classModel.V5.CourseV5Category.findAll({ where: { type: 1, status: 1, is_deleted: 0 }, order: [[ 'sort', 'asc' ]], attributes: [ 'id', 'name' ], raw: true });
+    const categoryList = await ctx.classModel.V5.CourseV5Category.findAll({ where: { type: 1, parent_id: 0, status: 1, is_deleted: 0 }, order: [[ 'sort', 'asc' ]], attributes: [ 'id', 'name' ], raw: true });
     categoryList.forEach(e => {
       e.value = e.id;
     });