Add initial_params to all forms

netbox/dcim/forms.py

@@ -4280,7 +4280,10 @@ class PowerPanelFilterForm(BootstrapMixin, CustomFieldFilterForm):
 class PowerFeedForm(BootstrapMixin, CustomFieldModelForm):
     site = DynamicModelChoiceField(
         queryset=Site.objects.all(),
-        required=False
+        required=False,
+        initial_params={
+            'powerpanel_set': '$power_panel'
+        }
     )
     power_panel = DynamicModelChoiceField(
         queryset=PowerPanel.objects.all(),
@@ -4315,14 +4318,6 @@ class PowerFeedForm(BootstrapMixin, CustomFieldModelForm):
             'phase': StaticSelect2(),
         }
 
-    def __init__(self, *args, **kwargs):
-
-        super().__init__(*args, **kwargs)
-
-        # Initialize site field
-        if self.instance and hasattr(self.instance, 'power_panel'):
-            self.initial['site'] = self.instance.power_panel.site
-
 
 class PowerFeedCSVForm(CustomFieldModelCSVForm):
     site = CSVModelChoiceField(

netbox/dcim/tests/test_forms.py

@@ -100,23 +100,6 @@ class DeviceTestCase(TestCase):
         self.assertIn('face', form.errors)
         self.assertIn('position', form.errors)
 
-    def test_initial_data_population(self):
-        device_type = DeviceType.objects.first()
-        cluster = Cluster.objects.first()
-        test = DeviceForm(initial={
-            'device_type': device_type.pk,
-            'device_role': DeviceRole.objects.first().pk,
-            'status': DeviceStatusChoices.STATUS_ACTIVE,
-            'site': Site.objects.first().pk,
-            'cluster': cluster.pk,
-        })
-
-        # Check that the initial value for the manufacturer is set automatically when assigning the device type
-        self.assertEqual(test.initial['manufacturer'], device_type.manufacturer.pk)
-
-        # Check that the initial value for the cluster group is set automatically when assigning the cluster
-        self.assertEqual(test.initial['cluster_group'], cluster.group.pk)
-
 
 class LabelTestCase(TestCase):