Integrating formula editor

src/myfasthtml/core/dbmanager.py

@@ -115,6 +115,30 @@ class DbObject:
     return props
   
   def update(self, *args, **kwargs):
+    """
+    Update instance attributes with the provided arguments or keyword arguments.
+
+    This method allows updating the attributes of an object based on the provided
+    dictionary-like argument or explicit keyword arguments. It ensures that only
+    permitted attributes will be updated, excluding any internal or restricted
+    attributes. If both a dictionary and keyword arguments are provided, the
+    properties from the dictionary will be updated first, followed by the
+    keyword arguments.
+    
+    There will be only one update in database.
+
+    :param args: Zero or one positional argument is allowed. If provided, it must be
+        either a dictionary or an instance of SimpleNamespace whose properties
+        are used to update the instance.
+    :param kwargs: Keyword arguments that represent the properties and their new
+        values to be updated on the instance.
+    :return: The updated instance (self).
+    :rtype: object
+
+    :raises ValueError: If more than one positional argument is provided, or if the
+        provided argument is neither a dictionary nor an instance of
+        SimpleNamespace.
+    """
     if len(args) > 1:
       raise ValueError("Only one argument is allowed")