.

rapids/decorators.py

@@ -1,5 +1,5 @@
 from django.core.exceptions import PermissionDenied
-from .models import Rapid
+from .models import Exam
 
 def user_is_author_or_rapid_checker(function):
     def wrap(request, *args, **kwargs):
@@ -11,3 +11,15 @@ def user_is_author_or_rapid_checker(function):
     wrap.__doc__ = function.__doc__
     wrap.__name__ = function.__name__
     return wrap
+
+
+def user_is_exam_author_or_rapid_checker(function):
+    def wrap(request, *args, **kwargs):
+        exam = Exam.objects.get(pk=kwargs['pk'])
+        if request.user in exam.author.all() or request.user.groups.filter(name='rapid_checker').exists():
+            return function(request, *args, **kwargs)
+        else:
+            raise PermissionDenied
+    wrap.__doc__ = function.__doc__
+    wrap.__name__ = function.__name__
+    return wrap