Add management command to change consent_low_emission_accepted to False

Refs: PV-880

parking_permits/management/commands/disable_consent_low_emission.py

@@ -0,0 +1,35 @@
+from django.core.management.base import BaseCommand
+from django.db import transaction
+
+from parking_permits.models.vehicle import Vehicle
+
+
+class Command(BaseCommand):
+    help = "Change consent_low_emission_accepted to False for non-electric vehicles"
+
+    def add_arguments(self, parser):
+        parser.add_argument("--dry_run", type=bool, default=False)
+
+    @transaction.atomic
+    def handle(self, *args, **options):
+        dry_run = options["dry_run"]
+        vehicles = Vehicle.objects.filter(
+            consent_low_emission_accepted=True
+        ).select_related("power_type")
+        i = 0
+        for vehicle in vehicles:
+            if not vehicle.power_type.is_electric():
+                vehicle.consent_low_emission_accepted = False
+                if not dry_run:
+                    vehicle.save()
+                i = i + 1
+
+        if dry_run:
+            self.stdout.write("This is a dry run!")
+            self.stdout.write(
+                f"Real run would change {i} vehicles to consent_low_emission_accepted=False"
+            )
+        else:
+            self.stdout.write(
+                f"Changed {i} vehicles to consent_low_emission_accepted=False"
+            )