fix buyClass

app/controller/course/v5/user.js

@@ -101,12 +101,15 @@ class UserController extends Controller {
   async buyClass() {
     const { ctx, service } = this;
     const params = ctx.params;
+    const queryParams = ctx.request.body || {};
 
     if (ctx.isEmpty(params) || ctx.isEmpty(params.class_id)) {
       ctx.failed('class_id is failed');
     }
 
-    const ret = await service.course.v5.user.buyClass(params.class_id);
+    queryParams.id = params.class_id;
+
+    const ret = await service.course.v5.user.buyClass(queryParams);
     ctx.success(ret);
   }
 

app/service/course/v5/institution.js

@@ -203,7 +203,7 @@ class InstitutionSubService extends Service {
     classInfo.institution_logo = ctx.isEmpty(institution) ? '' : institution.logo;
     classInfo.institution_description = ctx.isEmpty(institution) ? '' : institution.description;
     classInfo.institution_title = ctx.isEmpty(institution) ? '' : institution.title;
-    classInfo.institution_pay_column = ctx.isEmpty(institution) || ctx.isEmpty(institution.pay_column) ? [] : eval(institution.pay_column);
+    classInfo.institution_pay_column = (ctx.isEmpty(institution) || ctx.isEmpty(institution.pay_column)) ? [] : eval(institution.pay_column);
     classInfo.pay_count += orderCount;
     classInfo.video_count = videoCount;
     classInfo.frequency = frequency;