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OOP & classes

Classes, instances, methods, dataclasses, and object-oriented design in Python.

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Unit of Work Pattern: Track Changes, Commit, and Rollback in Python

This code defines a UnitOfWork class that tracks operations (add) and supports commit to apply changes and rollback to revert them, using a dataclass-based logger.

unit-of-work dataclass transaction
Python 
from dataclasses import dataclass, field
from typing import Any, Callable, List, Tuple


@dataclass
class UnitOfWork:
    log: List[Tuple[str, Callable, tuple, dict]] = field(default_factory=list)

    def track(self, operation: str, fn: Callable, *args, **kwargs):
        self.log.append((operation, fn, args, kwargs)…
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