Support inserting UUID and memoryview, closes #128

sqlite_utils/db.py

@@ -7,6 +7,7 @@ import itertools
 import json
 import os
 import pathlib
+import uuid
 
 SQLITE_MAX_VARS = 999
 
@@ -40,11 +41,13 @@ COLUMN_TYPE_MAPPING = {
     str: "TEXT",
     bytes.__class__: "BLOB",
     bytes: "BLOB",
+    memoryview: "BLOB",
     datetime.datetime: "TEXT",
     datetime.date: "TEXT",
     datetime.time: "TEXT",
     decimal.Decimal: "FLOAT",
     None.__class__: "TEXT",
+    uuid.UUID: "TEXT",
     # SQLite explicit types
     "TEXT": "TEXT",
     "INTEGER": "INTEGER",
@@ -1336,6 +1339,8 @@ def jsonify_if_needed(value):
         return json.dumps(value, default=repr)
     elif isinstance(value, (datetime.time, datetime.date, datetime.datetime)):
         return value.isoformat()
+    elif isinstance(value, uuid.UUID):
+        return str(value)
     else:
         return value
 

tests/test_create.py

@@ -13,6 +13,7 @@ import decimal
 import json
 import pathlib
 import pytest
+import uuid
 
 from .utils import collapse_whitespace
 
@@ -134,6 +135,11 @@ def test_create_table_with_not_null(fresh_db):
         ),
         ({"day": datetime.time(11, 0)}, [{"name": "day", "type": "TEXT"}]),
         ({"decimal": decimal.Decimal("1.2")}, [{"name": "decimal", "type": "FLOAT"}]),
+        (
+            {"memoryview": memoryview(b"hello")},
+            [{"name": "memoryview", "type": "BLOB"}],
+        ),
+        ({"uuid": uuid.uuid4()}, [{"name": "uuid", "type": "TEXT"}]),
     ),
 )
 def test_create_table_from_example(fresh_db, example, expected_columns):
@@ -674,6 +680,23 @@ def test_insert_dictionaries_and_lists_as_json(fresh_db, data_structure):
     assert data_structure == json.loads(row[1])
 
 
+def test_insert_uuid(fresh_db):
+    uuid4 = uuid.uuid4()
+    fresh_db["test"].insert({"uuid": uuid4})
+    row = list(fresh_db["test"].rows)[0]
+    assert {"uuid"} == row.keys()
+    assert isinstance(row["uuid"], str)
+    assert row["uuid"] == str(uuid4)
+
+
+def test_insert_memoryview(fresh_db):
+    fresh_db["test"].insert({"data": memoryview(b"hello")})
+    row = list(fresh_db["test"].rows)[0]
+    assert {"data"} == row.keys()
+    assert isinstance(row["data"], bytes)
+    assert row["data"] == b"hello"
+
+
 def test_insert_thousands_using_generator(fresh_db):
     fresh_db["test"].insert_all(
         {"i": i, "word": "word_{}".format(i)} for i in range(10000)