from sqlalchemy.ext.declarative import DeclarativeBase


def is_sqlalchemy_model(obj):
    """
    判断对象是否为 SQLAlchemy 模型
    """
    if isinstance(obj, DeclarativeBase):
        return True

    if hasattr(obj, "_sa_instance_state"):
        return True

    if hasattr(obj, "__mapper__"):
        return True

    return False


def is_orm_result(data):
    """
    判断数据是否为 ORM 查询结果
    """
    if isinstance(data, list):
        if not data:
            return False
        return is_sqlalchemy_model(data[0])

    return is_sqlalchemy_model(data)