fix customer view and edit

apps/customers/migrations/0006_backfill_customer_profiles.py

@@ -0,0 +1,25 @@
+from django.db import migrations
+
+
+def backfill_customer_profiles(apps, schema_editor):
+    User = apps.get_model("accounts", "User")
+    CustomerProfile = apps.get_model("customers", "CustomerProfile")
+    database = schema_editor.connection.alias
+    missing_users = (
+        User.objects.using(database)
+        .filter(account_type="CUSTOMER", customer_profile__isnull=True)
+        .values("pk", "first_name", "last_name")
+    )
+    batch = []
+    for user in missing_users.iterator(chunk_size=500):
+        batch.append(CustomerProfile(user_id=user["pk"], first_name=user["first_name"][:100], last_name=user["last_name"][:100]))
+        if len(batch) == 500:
+            CustomerProfile.objects.using(database).bulk_create(batch, ignore_conflicts=True, batch_size=500)
+            batch.clear()
+    if batch:
+        CustomerProfile.objects.using(database).bulk_create(batch, ignore_conflicts=True, batch_size=500)
+
+
+class Migration(migrations.Migration):
+    dependencies = [("customers", "0005_contacteditlog")]
+    operations = [migrations.RunPython(backfill_customer_profiles, migrations.RunPython.noop)]