Prevent student from resetting problem unless they have completed required peer…

Prevent student from resetting problem unless they have completed required peer grading.  Grant an exemption if there is no available peer grading.

common/lib/xmodule/xmodule/open_ended_grading_classes/combined_open_ended_modulev1.py

@@ -516,6 +516,7 @@ class CombinedOpenEndedV1Module():
             count_graded = response['count_graded']
             count_required = response['count_required']
             student_sub_count = response['student_sub_count']
+            count_available = response['count_available']
             success = True
         except:
             # This is a dev_facing_error
@@ -524,7 +525,7 @@ class CombinedOpenEndedV1Module():
             # This is a student_facing_error
             error_message = "Could not contact the graders.  Please notify course staff."
             return success, allowed_to_submit, error_message
-        if count_graded >= count_required:
+        if count_graded >= count_required or count_available==0:
             return success, allowed_to_submit, ""
         else:
             allowed_to_submit = False
@@ -687,7 +688,9 @@ class CombinedOpenEndedV1Module():
         if self.state != self.DONE:
             if not self.ready_to_reset:
                 return self.out_of_sync_error(data)
-
+        success, can_reset, error = self.check_if_student_has_done_needed_grading()
+        if not can_reset:
+            return {'error' : error, 'success' : False}
         if self.student_attempts >= self.max_attempts-1:
             if self.student_attempts==self.max_attempts-1:
                 self.student_attempts +=1

common/lib/xmodule/xmodule/open_ended_grading_classes/peer_grading_service.py

@@ -124,4 +124,4 @@ class MockPeerGradingService(object):
                 ]}
 
     def get_data_for_location(self, problem_location, student_id):
-        return {"version": 1, "count_graded": 3, "count_required": 3, "success": True, "student_sub_count": 1}
+        return {"version": 1, "count_graded": 3, "count_required": 3, "success": True, "student_sub_count": 1, 'submissions_available' : 0}