Add script to import historical number of members older than six months

apiserver/import_six_month_plus_count.py

@@ -0,0 +1,21 @@
+# Expects a old_counts.csv of the historical counts in format:
+# date,six_month_plus_count
+
+import django, sys, os
+os.environ['DJANGO_SETTINGS_MODULE'] = 'apiserver.settings'
+django.setup()
+
+import csv
+from apiserver.api import models
+
+with open('old_counts.csv', newline='') as csvfile:
+    reader = csv.DictReader(csvfile)
+    for row in reader:
+        print('Adding', row['date'], row['six_month_plus_count'])
+
+        models.StatsMemberCount.objects.update_or_create(
+            date=row['date'],
+            defaults=dict(six_month_plus_count=row['six_month_plus_count']),
+        )
+
+print('Done.')