use pipeline for updates (#74)

* use pipeline for updates

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/test_dict.py

@@ -67,6 +67,9 @@ def test_dct_update(client, request):
     dct.update({"b": "3", "c": "4"})
     assert dct == {"a": "1", "b": "3", "c": "4"}
 
+    dct.update(d="5")
+    assert dct == {"a": "1", "b": "3", "c": "4", "d": "5"}
+
 
 @pytest.mark.parametrize(
     "client", ["znsclient", "znsclient_w_redis", "redisclient", "empty"]

znsocket/objects/__init__.py

@@ -479,6 +479,34 @@ def on_refresh(self, callback: t.Callable[[RefreshDataTypeDict], None]) -> None:
 
         self.socket.refresh_callbacks[self.key] = callback
 
+    def update(self, *args, **kwargs):
+        """Update the dict with another dict or iterable."""
+        if len(args) > 1:
+            raise TypeError("update expected at most 1 argument, got %d" % len(args))
+        if args:
+            other = args[0]
+            if isinstance(other, Dict):
+                other = dict(other)
+            elif isinstance(other, MutableMapping):
+                pass
+            else:
+                raise TypeError(
+                    "update expected at most 1 argument, got %d" % len(args)
+                )
+        else:
+            other = kwargs
+
+        pipeline = self.redis.pipeline()
+        for key, value in other.items():
+            if isinstance(value, Dict):
+                if value.key == self.key:
+                    raise ValueError("Can not set circular reference to self")
+                value = f"znsocket.Dict:{value.key}"
+            if isinstance(value, List):
+                value = f"znsocket.List:{value.key}"
+            pipeline.hset(self.key, key, _encode(self, value))
+        pipeline.execute()
+
     def __or__(self, value: "dict|Dict") -> dict:
         if isinstance(value, Dict):
             value = dict(value)