feat: add scoped NetBox ZIP export and import plugin

netbox_export/models.py

@@ -0,0 +1,39 @@
+import uuid
+
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
+from django.db import models
+
+
+class InstanceIdentity(models.Model):
+    """Stable identity used to correlate repeat exports from this NetBox."""
+
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    singleton = models.BooleanField(default=True, unique=True, editable=False)
+
+    @classmethod
+    def local_id(cls):
+        return cls.objects.get_or_create(singleton=True)[0].pk
+
+
+class ImportedObjectMapping(models.Model):
+    """Maps an object from another NetBox instance to its local counterpart."""
+
+    source_instance = models.UUIDField()
+    source_model = models.CharField(max_length=100)
+    source_object_id = models.CharField(max_length=255)
+    target_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
+    target_id = models.CharField(max_length=255)
+    target = GenericForeignKey("target_type", "target_id")
+    last_imported = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        constraints = (
+            models.UniqueConstraint(
+                fields=("source_instance", "source_model", "source_object_id"),
+                name="netbox_export_unique_source_object",
+            ),
+        )
+        indexes = (
+            models.Index(fields=("target_type", "target_id"), name="netbox_exp_target__d4d805_idx"),
+        )