python - Django 表单向导调度程序

Question

我有一个两页长的表格。虽然，第一页问了一个基本问题，并且根据答案需要重定向到要填写的三个表格之一，然后提交。我创建了一个图表来帮助说明:

我正在使用 Django 表单向导，但我不知道如何构建我的 View 以合并此类逻辑。

有人可以帮我开始吗？ 最好显示一些需要在 django 形式的 SessionWizardView 中执行的代码。

提前致谢。

Answer 1

如果您仅依赖于先前表单中的数据，则无需重写 get_form，您可以使用 condition_dict，在初始化 WizardView 时通过自定义 ID 映射表单。

我不喜欢在 urls.py 中为定义 WizardView 做太多事情，所以我将 WizardView 包装在标准 View 函数中，并将普通 View 函数放在 urls.py 中。

    def buy_cart_wizard_view_wrapper(request):

        con_dict = {FORM_ID_BILLING_ADDRESS_PICK: db_funcs.check_wizard_has_addresses_buy_cart,
                    FORM_ID_BILLING_ADDRESS: db_funcs.check_wizard_create_billing_pick_buy_cart,
                    FORM_ID_SHIPPING_ADDRESS_PICK: db_funcs.check_wizard_has_addresses_shipping_pick_buy_cart,
                    FORM_ID_SHIPPING_ADDRESS: db_funcs.check_wizard_create_shipping_pick_buy_cart,
                    FORM_ID_SAVED_BUSINESS_PAYMENT_PICK: db_funcs.check_wizard_has_payments_buy_cart,
                    FORM_ID_SAVED_BUSINESS_PAYMENT: db_funcs.check_wizard_create_payment_pick_buy_cart,
        }

        form_list = [(FORM_ID_BILLING_ADDRESS_PICK, accounts_forms.AddressPickerForm),
                 (FORM_ID_BILLING_ADDRESS, accounts_forms.BillingAddressForm),
                 (FORM_ID_SHIPPING_ADDRESS_PICK, accounts_forms.AddressPickerForm),
                 (FORM_ID_SHIPPING_ADDRESS, accounts_forms.AddressForm),
                 (FORM_ID_SAVED_BUSINESS_PAYMENT_PICK, accounts_forms.SavedBusinessPmtPickerForm),
                 (FORM_ID_SAVED_BUSINESS_PAYMENT, accounts_forms.SavedBusinessPmtBuyCartForm),
                 ]

        return BuyCartWizardView.as_view(form_list,condition_dict=con_dict, initial_dict=ini_dict)(request)

然后是对前一个表单进行条件检查的示例，'

def check_wizard_create_payment_pick_buy_cart(wizard):
    """
    Check if the previous form has an address selected
    """
    cleaned_data = wizard.get_cleaned_data_for_step(FORM_ID_SAVED_BUSINESS_PAYMENT_PICK) or {}
    create_new_payment_ind = cleaned_data.get(FORM_FIELD_NAME) or ''
    if create_new_payment_ind != '':
        return True
    else:
        return False

返回 True 以将表单显示为下一步，返回 False 以跳过表单并移动到之后的表单或完成(如果表单不正确)。