Mgmt commands to clear data from historical tables.

common/djangoapps/microsite_configuration/management/commands/delete_historical_microsite_data.py

@@ -0,0 +1,35 @@
+"""
+Command to delete all rows from these tables:
+microsite_configuration_historicalmicrositeorganizationmapping
+microsite_configuration_historicalmicrositetemplate
+"""
+
+import logging
+from common.djangoapps.microsite_configuration.models import MicrositeOrganizationMapping, MicrositeTemplate
+from openedx.core.djangoapps.util.row_delete import delete_rows, BaseDeletionCommand
+log = logging.getLogger(__name__)
+
+
+class Command(BaseDeletionCommand):
+    """
+    Example usage: ./manage.py lms --settings=devstack delete_historical_microsite_data
+    """
+    help = 'Deletes all historical MicrositeOrganizationMapping and MicrositeTemplate rows (in chunks).'
+
+    def handle(self, *args, **options):
+        """
+        Deletes rows, chunking the deletes to avoid long table/row locks.
+        """
+        chunk_size, sleep_between = super(Command, self).handle(*args, **options)
+        delete_rows(
+            MicrositeOrganizationMapping.objects,
+            'microsite_configuration_historicalmicrositeorganizationmapping',
+            'history_id',
+            chunk_size, sleep_between
+        )
+        delete_rows(
+            MicrositeTemplate.objects,
+            'microsite_configuration_historicalmicrositetemplate',
+            'history_id',
+            chunk_size, sleep_between
+        )

common/djangoapps/student/management/commands/delete_historical_enrollment_data.py

@@ -0,0 +1,27 @@
+"""
+Command to delete all rows from the student_historicalcourseenrollment table.
+"""
+
+import logging
+from student.models import CourseEnrollment
+from openedx.core.djangoapps.util.row_delete import delete_rows, BaseDeletionCommand
+log = logging.getLogger(__name__)
+
+
+class Command(BaseDeletionCommand):
+    """
+    Example usage: ./manage.py lms --settings=devstack delete_historical_enrollment_data
+    """
+    help = 'Deletes all historical CourseEnrollment rows (in chunks).'
+
+    def handle(self, *args, **options):
+        """
+        Deletes rows, chunking the deletes to avoid long table/row locks.
+        """
+        chunk_size, sleep_between = super(Command, self).handle(*args, **options)
+        delete_rows(
+            CourseEnrollment.objects,
+            'student_historicalcourseenrollment',
+            'history_id',
+            chunk_size, sleep_between
+        )