Question

已确定我需要从表单集中删除的对象。

America/Cancun  CST CST (standard)
America/Cancun  CDT CDT (daylight savings)
--
America/Chicago CST Central Standard Time (standard)
America/Chicago CDT Central Daylight Time (daylight savings)
--
America/Havana  CST CST (standard)
America/Havana  CDT CDT (daylight savings)
--
America/Menominee   CST CST (standard)
America/Menominee   CDT CDT (daylight savings)
America/Merida  CST CST (standard)
America/Merida  CDT CDT (daylight savings)
America/Mexico_City CST CST (standard)
America/Mexico_City CDT CDT (daylight savings)
--
America/Monterrey   CST CST (standard)
America/Monterrey   CDT CDT (daylight savings)
--
America/North_Dakota/Center CST CST (standard)
America/North_Dakota/Center CDT CDT (daylight savings)
--
America/Rainy_River CST CST (standard)
America/Rainy_River CDT CDT (daylight savings)
America/Rankin_Inlet    CST CST (standard)
America/Rankin_Inlet    CDT CDT (daylight savings)
--
America/Winnipeg    CST CST (standard)
America/Winnipeg    CDT CDT (daylight savings)

以错误

结束

def save_formset(self, request, form, formset, change):
        instances = formset.save(commit=False)
        for instance in instances:
            ......
        if formset.deleted_forms:
            for obj in formset.deleted_forms:
               obj.delete() //here is the issue

这就是formset.deleted_forms

*** AttributeError: 'ActivitiesForm' object has no attribute 'delete'

这里出了什么问题？基本上我试图删除管理员选择的内联条目

Answer 1

如果您使用的是模型表单集，则应该遍历deleted_objects，而不是deleted_forms。有关详细信息，请参阅the docs。

for obj in formset.deleted_objects:
    obj.delete()

请注意，在Django 1.7（release notes）之前，您不需要手动删除对象。调用save（）时删除了对象，即使使用commit=False。

Answer 2

在 Django >=1.11 中，您可以覆盖表单集上的删除：

class YourInlineFormset(BaseInlineFormSet):

    def delete_existing(self, obj, commit=True):
        if commit:
            do_delete_it_your_way()

formset删除内联实例

2 个答案: