fields.py 文件源码

def __init__(self, label=None, validators=None, reference_class=None,
                 get_label=None, allow_blank=False,
                 blank_text='', **kwargs):
        super(ReferencePropertyField, self).__init__(label, validators,
                                                     **kwargs)
        if get_label is None:
            self.get_label = lambda x: x
        elif isinstance(get_label, string_types):
            self.get_label = operator.attrgetter(get_label)
        else:
            self.get_label = get_label

        self.allow_blank = allow_blank
        self.blank_text = blank_text
        self._set_data(None)
        if reference_class is not None:
            self.query = reference_class.all()