Cleaned up database migration for 2.1 update

nadine/management/commands/migrate_21.py

@@ -0,0 +1,22 @@
+
+from datetime import datetime
+
+from django.core.management.base import BaseCommand
+from django.utils.timezone import localtime, now
+
+from nadine.models.billing import UserBill
+
+class Command(BaseCommand):
+    requires_system_checks = True
+    help = "Runs the 2.1 migrations."
+
+    def handle(self, *args, **options):
+        today = localtime(now()).date()
+
+        print("Updating UserBill caches... (this can take awhile)")
+        for bill in UserBill.objects.all():
+            bill.update_cached_totals()
+            bill.delete()
+
+
+# Copyright 2018 Office Nomads LLC (http://officenomads.com/) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

nadine/migrations/0035_auto_20180413_2326.py → nadine/migrations/0035_taxes_cached_totals.py

@@ -4,6 +4,15 @@
 import django.db.models.deletion
 
 
+def forward(apps, schema_editor):
+    # We can't do this in migration space
+    # UserBill = apps.get_model("nadine", "UserBill")
+    # for bill in UserBill.objects.all():
+    #     bill.update_cached_totals()
+    print()
+    print("    NOTE: After the migration run './manage.py migrate_21'")
+
+
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -33,4 +42,27 @@ class Migration(migrations.Migration):
             name='tax_rate',
             field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='nadine.TaxRate'),
         ),
+        migrations.AddField(
+            model_name='userbill',
+            name='cached_total_amount',
+            field=models.DecimalField(decimal_places=2, default=0, max_digits=7),
+        ),
+        migrations.AddField(
+            model_name='userbill',
+            name='cached_total_owed',
+            field=models.DecimalField(decimal_places=2, default=0, max_digits=7),
+        ),
+        migrations.AddField(
+            model_name='userbill',
+            name='cached_total_paid',
+            field=models.DecimalField(decimal_places=2, default=0, max_digits=7),
+        ),
+        migrations.AddField(
+            model_name='userbill',
+            name='cached_total_tax_amount',
+            field=models.DecimalField(decimal_places=2, default=0, max_digits=7),
+        ),
+
+        migrations.RunPython(forward, migrations.RunPython.noop),
+
     ]