6347 update ref to parent_model, migration

netbox/dcim/migrations/0175_device__console_port_count_and_more.py

@@ -1,28 +1,12 @@
-# Generated by Django 4.1.8 on 2023-05-16 20:18
+# Generated by Django 4.2.2 on 2023-06-23 19:26
 
 from django.db import migrations
 import utilities.fields
 
 
-def populate_device_counts(apps, schema_editor):
-    Device = apps.get_model('dcim', 'Device')
-
-    for device in Device.objects.all():
-        device._console_port_count = device.consoleports.count()
-        device._console_server_port_count = device.consoleserverports.count()
-        device._interface_count = device.interfaces.count()
-        device._front_port_count = device.frontports.count()
-        device._rear_port_count = device.rearports.count()
-        device._device_bay_count = device.devicebays.count()
-        device._inventory_item_count = device.inventoryitems.count()
-        device._power_port_count = device.powerports.count()
-        device._power_outlet_count = device.poweroutlets.count()
-        device.save()
-
-
 class Migration(migrations.Migration):
     dependencies = [
-        ('dcim', '0173_remove_napalm_fields'),
+        ('dcim', '0174_rack_starting_unit'),
     ]
 
     operations = [
@@ -71,8 +55,4 @@ class Migration(migrations.Migration):
             name='_rear_port_count',
             field=utilities.fields.CounterCacheField(default=0),
         ),
-        migrations.RunPython(
-            code=populate_device_counts,
-            reverse_code=migrations.RunPython.noop
-        ),
     ]

netbox/utilities/counter.py

@@ -35,7 +35,7 @@ class Counter(object):
             raise TypeError(
                 f"{self.counter_name} should be a CounterCacheField on {self.parent_model}, but is {type(counter_field)}"
             )
-        if not isinstance(parent_model, TrackingModelMixin):
+        if not isinstance(self.parent_model, TrackingModelMixin):
             raise TypeError(
                 f"{self.parent_model} should be derived from TrackingModelMixin"
             )

netbox/utilities/fields.py

@@ -9,6 +9,7 @@ from .validators import ColorValidator
 
 __all__ = (
     'ColorField',
+    'CounterCacheField',
     'NaturalOrderingField',
     'NullableCharField',
     'RestrictedGenericForeignKey',