add record

src/beakers/record.py

@@ -0,0 +1,23 @@
+import uuid
+from pydantic import BaseModel
+
+
+class Record:
+    _reserved_names = ("id",)
+
+    def __init__(self, id: str | None = None):
+        self._id = id if id else str(uuid.uuid1())
+        self._data: dict[str, BaseModel] = {}
+
+    def __getattr__(self, name: str) -> str | BaseModel:
+        if name == "id":
+            return self._id
+        return self._data[name]
+
+    def __setattr__(self, name: str, value: BaseModel) -> None:
+        if name.startswith("_"):
+            super().__setattr__(name, value)
+        elif name not in self._data and name not in self._reserved_names:
+            self._data[name] = value
+        else:
+            raise AttributeError(f"DataObject attribute {name} already exists")

tests/test_record.py

@@ -0,0 +1,34 @@
+from beakers.record import Record
+import pytest
+
+
+def test_record_id_autogen():
+    r = Record()
+    assert len(r.id) == 36
+    r2, r3 = Record(), Record()
+    assert r2.id != r3.id
+
+
+def test_record_id_assign():
+    r = Record(id="test")
+    assert r.id == "test"
+
+
+def test_record_setattr_good():
+    r = Record()
+    r.attrib = "set"
+    assert r.attrib == "set"
+
+
+def test_record_setattr_duplicate():
+    r = Record()
+    r.attrib = "set"
+    with pytest.raises(AttributeError):
+        r.attrib = "changed"
+    assert r.attrib == "set"
+
+
+def test_record_setattr_id():
+    r = Record()
+    with pytest.raises(AttributeError):
+        r.id = "changed"