我想通过 ModelFormSet
显示多个表单,其中每个表单依次显示连接到该对象的所有对象的 InlineFormSets
。
现在我不太确定如何为每个 ModelFormSet
提供实例。我想过对 BaseModelFormSet
进行子类化,但我不知道从哪里开始,并想在我解决所有麻烦之前知道这是否可能。
提前致谢!
最佳答案
我找到了一篇专注于确切问题的文章。它工作正常!
http://yergler.net/blog/2009/09/27/nested-formsets-with-django/
为了完整起见,我复制了代码片段:
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)
关于django - 如何将 InlineFormSet 放入 Django 中的 ModelFormSet 中?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/1852475/