Convert NullBooleanField to BooleanField(null=True)

netbox/circuits/migrations/0019_nullbooleanfield_to_booleanfield.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1b1 on 2020-07-16 15:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('circuits', '0018_standardize_description'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='circuittermination',
+            name='connection_status',
+            field=models.BooleanField(blank=True, null=True),
+        ),
+    ]

netbox/circuits/models.py

@@ -275,9 +275,10 @@ class CircuitTermination(CableTermination):
         blank=True,
         null=True
     )
-    connection_status = models.NullBooleanField(
+    connection_status = models.BooleanField(
         choices=CONNECTION_STATUS_CHOICES,
-        blank=True
+        blank=True,
+        null=True
     )
     port_speed = models.PositiveIntegerField(
         verbose_name='Port speed (Kbps)'