target_helpers.py 文件源码

def __init__(self, target):
        self.error_dict = {}
        self._data = {}

        for field in self.fields:
            self._data[field] = target.get(field)

        for field in self.defaults:
            if not target.get(field):
                self._data[field] = self.defaults[field]

        for field in self.required_fields:
            if not self._data.get(field) and not isinstance(self._data.get(field), Number):
                self.error_dict[field] = ['This field is required']

        self.validate()