course fix

app/service/course/institution.js

@@ -143,8 +143,8 @@ class InstitutionService extends Service {
         const { ctx } = this;
         const where = { id: teacher_id };
         let teacher = await ctx.classModel.CourseTeacher.one({ where });
-        teacher.dataValues.point_tags = teacher.point.split(';');
-        teacher.dataValues.work_experience_tags = teacher.work_experience.split(';');
+        teacher.dataValues.point_tags = teacher.point ? teacher.point.split(';') : [];
+        teacher.dataValues.work_experience_tags = teacher.work_experience ? teacher.work_experience.split(';') : [];
 
         return teacher;
     }
@@ -155,8 +155,8 @@ class InstitutionService extends Service {
         const where = { id: class_id };
         let classs = await ctx.classModel.CourseClass.one({ where });
         classs.dataValues.age_text = `${classs.min_age}-${classs.max_age}岁`;
-        classs.dataValues.point_tags = classs.point.split(';');
-        classs.dataValues.photo_album = classs.image.split(';');
+        classs.dataValues.point_tags = classs.point ? classs.point.split(';') : [];
+        classs.dataValues.photo_album = classs.image ? classs.image.split(';') : [] ;
 
         return classs;
     }