Question

我有一个动态表格：

class CollectionRequestParamForm(Form):
    param_human_name = StringField(validators=[DataRequired()])
    param_request_name = StringField()


class CollectionRequestParamCombinedForm(FlaskForm):
    params = FieldList(FormField(CollectionRequestParamForm), min_entries=2)
    submit = SubmitField('Submit')

我想在视图中设置min_entries，例如：

collection_request_params_form = CollectionRequestParamCombinedForm(min_entries=5)

我这样做：

class CollectionRequestParamCombinedForm(FlaskForm):
    def __init__(self, min_entries, *args, **kwargs):
        FlaskForm.__init__(self, *args, **kwargs)
        self.params = FieldList(FormField(CollectionRequestParamForm), min_entries=min_entries)

    submit = SubmitField('Submit')

但是：TypeError: 'UnboundField' object is not iterable

导致此错误的原因是什么？

Answer 1

如果要使其动态化，请执行此操作

for i in range(min_entries):
    form.params.append_entry()

更多信息，https://stackoverflow.com/a/48710958/9218468

动态表单的UnboundField对象错误

1 个答案: