fix uuid mismatch when wrapping obj (#11)

* fix uuid mismatch when wrapping obj

* also for string lookup

* fix register for building docs

* test for registering the uuid

databpy/object.py

@@ -149,10 +149,18 @@ def __init__(self, obj: Object | str | None = None):
         self._uuid: str = str(uuid1())
         self._object_name: str = ""
 
+        if not hasattr(bpy.types.Object, "uuid"):
+            register()
+
         if isinstance(obj, Object):
+            if obj.uuid != "":
+                self._uuid = obj.uuid
             self.object = obj
         elif isinstance(obj, str):
-            self.object = bpy.data.objects[obj]
+            obj = bpy.data.objects[obj]
+            if obj.uuid != "":
+                self._uuid = obj.uuid
+            self.object = obj
         elif obj is None:
             self._object_name = ""
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "databpy"
-version = "0.0.6"
+version = "0.0.7"
 description = "A data-oriented wrapper library for the Blender Python API"
 readme = "README.md"
 dependencies = ["numpy>=1.26.0,<2.0"]

tests/test_bob.py

@@ -36,3 +36,18 @@ def test_bob(snapshot):
     assert not np.allclose(pos_a, pos_b)
     assert snapshot == pos_a
     assert snapshot == pos_b
+
+
+# test that we aren't overwriting an existing UUID on an object, when wrapping it with
+# with BlenderObject
+def test_bob_mismatch_uuid():
+    bob = db.BlenderObject(bpy.data.objects["Cube"])
+    obj = bob.object
+    old_uuid = obj.uuid
+    bob = db.BlenderObject(obj)
+    assert old_uuid == bob.uuid
+
+
+def test_register():
+    db.unregister()
+    bob = db.BlenderObject(bpy.data.objects["Cube"])