demo.py 文件源码

def get_item(cls, id=None, order_by='id', order_type='desc', to_dict=True):
        if id is not None:
            data = get_object_or_404(cls, cls.id == id)
        else:
            order_field = getattr(cls, order_by)
            if order_type.lower() == 'asc':
                data = cls.select().order_by(-order_field)
            else:
                data = cls.select().order_by(+order_field)
        if to_dict:
            if isinstance(data, peewee.SelectQuery):
                data = [model2dict(i) for i in data]
            else:
                data = model2dict(data)
        return data