如何將InlineFormSet放入Django的ModelFormSet中？

Question

我想通過ModelFormSet顯示多個表單，其中每個表單依次顯示連接到對象的所有對象的InlineFormSets。

現在我不確定如何爲每個ModelFormSet提供實例。我想過子類化BaseModelFormSet，但我不知道從哪裏開始，並且想知道在我解決所有問題之前是否可以做到這一點。

在此先感謝！

Answer 1

我發現了一篇關注確切問題的文章。它工作正常！

http://yergler.net/blog/2009/09/27/nested-formsets-with-django/

爲了完整起見，我複製的代碼片段：

class Block(models.Model): 
    description = models.CharField(max_length=255) 

class Building(models.Model): 
    block = models.ForeignKey(Block) 
    address = models.CharField(max_length=255) 

class Tenant(models.Model): 
    building = models.ForeignKey(Building) 
    name = models.CharField(max_length=255) 
    unit = models.CharField(max_length=255) 

form django.forms.models import inlineformset_factory, BaseInlineFormSet 

TenantFormset = inlineformset_factory(models.Building, models.Tenant, extra=1) 

class BaseBuildingFormset(BaseInlineFormSet): 

    def add_fields(self, form, index): 
     # allow the super class to create the fields as usual 
     super(BaseBuildingFormset, self).add_fields(form, index) 

     # created the nested formset 
     try: 
      instance = self.get_queryset()[index] 
      pk_value = instance.pk 
     except IndexError: 
      instance=None 
      pk_value = hash(form.prefix) 

     # store the formset in the .nested property 
     form.nested = [ 
      TenantFormset(data=self.data, 
          instance = instance, 
          prefix = 'TENANTS_%s' % pk_value)] 

BuildingFormset = inlineformset_factory(models.Block, models.Building, formset=BaseBuildingFormset, extra=1) 

Answer 2

正如jnns說，你要使用inlineformset_factory