基于django类的视图，具有内联模型-表单或表单集
我有以下模型：
class Bill(models.Model):
date = models.DateTimeField(_("Date of bill"),null=True,blank=True)
class Item(models.Model):
name = models.CharField(_("Name"),max_length=100)
price = models.FloatField(_("Price"))
quantity = models.IntegerField(_("Quantity"))
bill = models.ForeignKey("Bill",verbose_name=_("Bill"),
related_name="billitem")我知道这是可能的：
from django.forms.models import inlineformset_factory
inlineformset_factory(Bill, Item)然后通过标准视图进行处理。
现在我想知道，是否有一种方法可以使用基于类的视图(而不是管理界面)来实现相同的功能(意思是:使用内联来添加/编辑属于账单的项目)。
回答 7
Stack Overflow用户
发布于 2011-07-26 02:19:53
关键点是：
- 在
forms.py中使用inlineformset_factory生成了FormSet：
BookImageFormSet = inlineformset_factory(BookForm，BookImage，extra=2) BookPageFormSet = inlineformset_factory(BookForm，BookPage，extra=5)
- returned the
FormSets in aCreateViewclass inviews.py：
def get_context_data(self，**kwargs)：context = super(BookCreateView，self).get_context_data(**kwargs) if self.request.POST: context‘’bookimage_ form‘= BookImageFormSet(self.request.POST) context’‘bookpage_form’= BookPageFormSet(self.request.POST) else: context‘’bookimage_form‘= BookImageFormSet() context’‘bookpage_form’= BookPageFormSet() return context
- 使用
form_valid保存表单和表单集：
def form_valid(self，表单)：context = self.get_context_data() bookimage_form =context‘’bookimage_formset‘bookpage_form =context’‘bookpage_formset’如果bookimage_form.is_valid()和bookpage_form.is_valid()：self.object = form.save() bookimage_form.instance = self.object bookimage_form.save() bookpage_form.instance = self.objectbookpage_form.save() return HttpResponseRedirect(‘self.render_to_response(self.get_context_data(form=form)) /’) else:返回感谢
Stack Overflow用户
发布于 2012-08-11 07:17:21
我只是在检查了一些预制的CBV后添加了我自己的版本。我特别需要在单个视图中控制multiple formsets -> one parent，每个视图都有单独的保存功能。
我基本上将FormSet数据绑定填充到一个get_named_formsets函数中，该函数由get_context_data和form_valid调用。
在那里，我检查是否所有的表单集都有效，并寻找一种方法来覆盖每个表单集上的普通旧formset.save()以进行自定义保存。
模板通过以下方式呈现表单集
{% with named_formsets.my_specific_formset as formset %}
{{ formset }}
{{ formset.management_form }}
{% endwith %}我想我会经常使用这个系统。
class MyView(UpdateView): # FormView, CreateView, etc
def get_context_data(self, **kwargs):
ctx = super(MyView, self).get_context_data(**kwargs)
ctx['named_formsets'] = self.get_named_formsets()
return ctx
def get_named_formsets(self):
return {
'followup': FollowUpFormSet(self.request.POST or None, prefix='followup'),
'action': ActionFormSet(self.request.POST or None, prefix='action'),
}
def form_valid(self, form):
named_formsets = self.get_named_formsets()
if not all((x.is_valid() for x in named_formsets.values())):
return self.render_to_response(self.get_context_data(form=form))
self.object = form.save()
# for every formset, attempt to find a specific formset save function
# otherwise, just save.
for name, formset in named_formsets.items():
formset_save_func = getattr(self, 'formset_{0}_valid'.format(name), None)
if formset_save_func is not None:
formset_save_func(formset)
else:
formset.save()
return http.HttpResponseRedirect('')
def formset_followup_valid(self, formset):
"""
Hook for custom formset saving.. useful if you have multiple formsets
"""
followups = formset.save(commit=False) # self.save_formset(formset, contact)
for followup in followups:
followup.who = self.request.user
followup.contact = self.object
followup.save()Stack Overflow用户
发布于 2013-11-04 03:38:35
你应该试试django-extra-views。查找CreateWithInlinesView和UpdateWithInlinesView。
https://stackoverflow.com/questions/4497684
复制相似问题
腾讯云开发者
