create map

courses/views.py

@@ -2,6 +2,7 @@ from rest_framework.views import APIView
 from rest_framework.renderers import JSONRenderer
 from rest_framework.response import Response
 
+from access.models import Progress
 from maps.serializers import CourseMapSerializer
 from courses.models import Course, Vertex
 from courses.serializers import CourseDetailSerializer, CourseListSerializer, VertexSerializer
@@ -25,8 +26,11 @@ class TreeView(APIView):
             return Response("Course doesn't exist", status=404)
 
         if request.user.is_authenticated():
-            route = course.progress_set.get(user=request.user).get_template()
-            return Response(CourseMapSerializer(route.get_first()).data, self.status_code)
+            try:
+                route = course.progress_set.get(user=request.user).get_template()
+                return Response(CourseMapSerializer(route.get_first()).data, self.status_code)
+            except Progress.DoesNotExist:
+                pass
 
         return Response(CourseMapSerializer(course.route.get_first()).data, self.status_code)