fix: bulk create course staff mgmt command

edx_exams/apps/core/management/commands/bulk_add_course_staff.py

@@ -4,7 +4,6 @@
 import time
 
 from django.core.management.base import BaseCommand
-from django.db import transaction
 
 from edx_exams.apps.core.models import CourseStaffRole, User
 
@@ -44,7 +43,6 @@ def add_arguments(self, parser):
             dest='batch_delay',
             help='Time delay in seconds for each batch')
 
-    @transaction.atomic
     def handle(self, *args, **options):
         """
         The main logic and entry point of the management command
@@ -73,6 +71,10 @@ def add_course_staff_from_csv(self, csv_file, batch_size, batch_delay):
                 ) for row in reader[i:i + batch_size]),
                 ignore_conflicts=True,
             )
+            time.sleep(batch_delay)
+
+        # bulk create course staff
+        for i in range(0, len(reader), batch_size):
             CourseStaffRole.objects.bulk_create(
                 (CourseStaffRole(
                     user=User.objects.get(username=row.get('username')),
@@ -85,12 +87,12 @@ def add_course_staff_from_csv(self, csv_file, batch_size, batch_delay):
 
         # bulk create course staff
         # for i in range(0, len(reader), batch_size):
-        #     CourseStaffRole.objects.bulk_create(
-        #         (CourseStaffRole(
-        #             user=User.objects.get(username=row.get('username')),
-        #             course_id=row.get('course_id'),
-        #             role=row.get('role'),
-        #         ) for row in reader[i:i + batch_size]),
-        #         ignore_conflicts=True,
-        #     )
-        #     time.sleep(batch_delay)
+            # CourseStaffRole.objects.bulk_create(
+            #     (CourseStaffRole(
+            #         user=User.objects.get(username=row.get('username')),
+            #         course_id=row.get('course_id'),
+            #         role=row.get('role'),
+            #     ) for row in reader[i:i + batch_size]),
+            #     ignore_conflicts=True,
+            # )
+            # time.sleep(batch_delay)

edx_exams/apps/core/management/commands/test/test_bulk_add_course_staff.py

@@ -90,7 +90,7 @@ def test_add_course_staff_with_not_default_batch_size(self):
                  'sam,[email protected],staff,course-v1:edx+test+f20\n']
         with NamedTemporaryFile() as csv:
             csv = self._write_test_csv(csv, lines)
-            with self.assertNumQueries(8):
+            with self.assertNumQueries(6):
                 call_command(self.command, f'--csv_path={csv.name}', '--batch_size=1')
 
     def test_add_course_staff_with_batch_size_larger_than_list(self):
@@ -99,7 +99,7 @@ def test_add_course_staff_with_batch_size_larger_than_list(self):
                  'sam,[email protected],staff,course-v1:edx+test+f20\n']
         with NamedTemporaryFile() as csv:
             csv = self._write_test_csv(csv, lines)
-            with self.assertNumQueries(6):
+            with self.assertNumQueries(4):
                 call_command(self.command, f'--csv_path={csv.name}', '--batch_size=3')
 
     def test_add_course_staff_with_batch_size_smaller_than_list(self):
@@ -109,7 +109,7 @@ def test_add_course_staff_with_batch_size_smaller_than_list(self):
                  'tam,[email protected],staff,course-v1:edx+test+f20\n']
         with NamedTemporaryFile() as csv:
             csv = self._write_test_csv(csv, lines)
-            with self.assertNumQueries(9):
+            with self.assertNumQueries(7):
                 call_command(self.command, f'--csv_path={csv.name}', '--batch_size=2')
 
     def test_add_course_staff_with_not_default_batch_delay(self):
@@ -125,7 +125,7 @@ def test_add_course_staff_with_not_default_batch_delay(self):
 
     def test_num_queries_correct(self):
         """
-        Assert the number of queries to be 4 + 1 * number of lines:
+        Assert the number of queries to be 2 + 1 * number of lines:
         2 for savepoint/release savepoint
         1 to bulk create users, 1 to bulk create course role
         1 for each user (to get user)
@@ -134,7 +134,7 @@ def test_num_queries_correct(self):
         lines = [f'pam{i},pam{i}@pond.com,staff,course-v1:edx+test+f20\n' for i in range(num_lines)]
         with NamedTemporaryFile() as csv:
             csv = self._write_test_csv(csv, lines)
-            with self.assertNumQueries(4 + num_lines):
+            with self.assertNumQueries(2 + num_lines):
                 call_command(self.command, f'--csv_path={csv.name}')
 
     def test_dupe_user_csv(self):