__init__.py 文件源码

def __init__(self, prop, name):
        self.prop = prop

        self.name = name
        self.help_text = getattr(prop, 'help_text', '')
        self.primary_key = getattr(prop, 'primary_key', False)
        self.label = prop.label if prop.label else name

        form_cls = getattr(prop, 'form_field_class', 'Field')  # get field string
        self.form_class = getattr(fields, form_cls, fields.CharField)

        self._has_default = prop.has_default
        self.required = prop.required
        self.blank = not self.required
        self.choices = getattr(prop, 'choices', None)

        self.creation_counter = DjangoField.creation_counter
        DjangoField.creation_counter += 1