fix virtual machine serializer e.t.c

datacenterlight/cms_models.py

@@ -307,30 +307,35 @@ class DCLSectionPromoPluginModel(CMSPlugin):
 class MultipleChoiceArrayField(ArrayField):
     """
     A field that allows us to store an array of choices.
+
     Uses Django's Postgres ArrayField
     and a MultipleChoiceField for its formfield.
     """
-    VMTemplateChoices = []
-    if settings.OPENNEBULA_DOMAIN != 'test_domain':
-        VMTemplateChoices = list(
-            (
-                str(obj.opennebula_vm_template_id),
-                (obj.name + ' - ' + VMTemplate.IPV6.title()
-                    if obj.vm_type == VMTemplate.IPV6 else obj.name
-                 )
-             )
-            for obj in VMTemplate.objects.all()
-        )
 
     def formfield(self, **kwargs):
+        vm_template_choices = []
+
+        if settings.OPENNEBULA_DOMAIN != 'test_domain':
+            vm_template_choices = [
+                (
+                    str(obj.opennebula_vm_template_id),
+                    (
+                        obj.name + ' - ' + VMTemplate.IPV6.title()
+                        if obj.vm_type == VMTemplate.IPV6
+                        else obj.name
+                    ),
+                )
+                for obj in VMTemplate.objects.all()
+            ]
+
         defaults = {
             'form_class': forms.MultipleChoiceField,
-            'choices': self.VMTemplateChoices,
+            'choices': vm_template_choices,
         }
+
         defaults.update(kwargs)
-        # Skip our parent's formfield implementation completely as we don't
-        # care for it.
-        # pylint:disable=bad-super-call
+
+        # Skip ArrayField.formfield() because we don't need its implementation.
         return super(ArrayField, self).formfield(**defaults)