update

src/modules/activity/components/SetBasic.vue

@@ -104,9 +104,9 @@ export default {
     changeClass() {
       if (this.form.class_id === '') {
         this.courseList = []
-        this.form.course_id = ''
+        this.form.course_id = []
       } else {
-        this.form.course_id = ''
+        this.form.course_id = []
         this.getCourseList()
       }
     },

src/modules/activity/views/Create.vue

@@ -98,7 +98,7 @@ export default {
     // 新建
     handleCreate() {
       if (this.isBaseicForm() && this.isDisplayModulesValidate() === -1) {
-        this.basicForm.course_id = this.basicForm.course_id.toString()
+        this.basicForm.course_id = this.basicForm.course_id.length ? this.basicForm.course_id.toString() : ''
         const params = Object.assign(this.basicForm, { details: this.stepPageInfo })
         params.details.map(item => {
           if (parseInt(item.type) === 2) {
@@ -119,7 +119,7 @@ export default {
     // 编辑
     handleUpdate() {
       if (this.isBaseicForm() && this.isDisplayModulesValidate() === -1) {
-        this.basicForm.course_id = this.basicForm.course_id.toString()
+        this.basicForm.course_id = this.basicForm.course_id.length ? this.basicForm.course_id.toString() : ''
         const params = Object.assign(this.basicForm, { details: this.stepPageInfo })
         console.log(params, 'this')
         params.id = this.$route.query.id