destination.py 文件源码

def process(self, formdata=None, obj=None, data=None, **kwargs):
        if not self.select_field or not getattr(self, self.select_field, False):
            return

        selected_value = kwargs.pop(self.select_field, None)
        selected_args = kwargs
        wrapped_formdata = self.meta.wrap_formdata(self, formdata)
        if wrapped_formdata and isinstance(wrapped_formdata, ImmutableMultiDict):
            selected_value = wrapped_formdata.get(self._prefix + self.select_field, '')
            key_prefix = self._prefix + selected_value + '-'
            selected_args = {k[len(key_prefix):]: v for k, v in wrapped_formdata.items() if key_prefix in k}

        if selected_value:
            kwargs = {self.select_field: selected_value,
                      selected_value: selected_args}
            if not getattr(self, selected_value, False):
                self._create_dynamic_destination_form(kwargs)

        super(BaseDestinationForm, self).process(formdata, obj, data, **kwargs)