timetracker/common/utils.py

from typing import Any


def safe_division(numerator: int | float, denominator: int | float) -> int | float:
    """
    Divides without triggering division by zero exception.
    Returns 0 if denominator is 0.
    """
    try:
        return numerator / denominator
    except ZeroDivisionError:
        return 0


def safe_getattr(obj: object, attr_chain: str, default: Any | None = None) -> object:
    """
    Safely get the nested attribute from an object.

    Parameters:
    obj (object): The object from which to retrieve the attribute.
    attr_chain (str): The chain of attributes, separated by dots.
    default: The default value to return if any attribute in the chain does not exist.

    Returns:
    The value of the nested attribute if it exists, otherwise the default value.
    """
    attrs = attr_chain.split(".")
    for attr in attrs:
        try:
            obj = getattr(obj, attr)
        except AttributeError:
            return default
    return obj