我有一个模板页面需要两个表单。如果我只使用一个表单，那么一切正常，如以下典型示例所示：if request.method == 'POST': form = AuthorForm(request.POST,) if form.is_va...
我有一个模板页面需要两个表单。如果我只使用一个表单，那么一切就都正常了，如以下典型示例所示：
if request.method == 'POST':
form = AuthorForm(request.POST,)
if form.is_valid():
form.save()
# do something.
else:
form = AuthorForm()
但是，如果我想使用多个表单，我该如何让视图知道我只提交其中一个表单而不是另一个表单（即它仍然是 request.POST 但我只想处理发生提交的表单）？
这是 基于答案的解决方案，其中 expectedphrase 和 bannedphrase 是不同表单的提交按钮的名称，而 expectedphraseform 和 bannedphraseform 是表单。
if request.method == 'POST':
if 'bannedphrase' in request.POST:
bannedphraseform = BannedPhraseForm(request.POST, prefix='banned')
if bannedphraseform.is_valid():
bannedphraseform.save()
expectedphraseform = ExpectedPhraseForm(prefix='expected')
elif 'expectedphrase' in request.POST:
expectedphraseform = ExpectedPhraseForm(request.POST, prefix='expected')
if expectedphraseform.is_valid():
expectedphraseform.save()
bannedphraseform = BannedPhraseForm(prefix='banned')
else:
bannedphraseform = BannedPhraseForm(prefix='banned')
expectedphraseform = ExpectedPhraseForm(prefix='expected')
Django 的基于类的视图提供了一个通用的 FormView，但出于所有意图和目的，它被设计为仅处理一种表单。
使用 Django 的通用视图处理具有相同目标操作 URL 的多个表单的一种方法是扩展“TemplateView”，如下所示；我经常使用这种方法，因此我已将其制成 Eclipse IDE 模板。
class NegotiationGroupMultifacetedView(TemplateView):
### TemplateResponseMixin
template_name = 'offers/offer_detail.html'
### ContextMixin
def get_context_data(self, **kwargs):
""" Adds extra content to our template """
context = super(NegotiationGroupDetailView, self).get_context_data(**kwargs)
...
context['negotiation_bid_form'] = NegotiationBidForm(
prefix='NegotiationBidForm',
...
# Multiple 'submit' button paths should be handled in form's .save()/clean()
data = self.request.POST if bool(set(['NegotiationBidForm-submit-counter-bid',
'NegotiationBidForm-submit-approve-bid',
'NegotiationBidForm-submit-decline-further-bids']).intersection(
self.request.POST)) else None,
)
context['offer_attachment_form'] = NegotiationAttachmentForm(
prefix='NegotiationAttachment',
...
data = self.request.POST if 'NegotiationAttachment-submit' in self.request.POST else None,
files = self.request.FILES if 'NegotiationAttachment-submit' in self.request.POST else None
)
context['offer_contact_form'] = NegotiationContactForm()
return context
### NegotiationGroupDetailView
def post(self, request, *args, **kwargs):
context = self.get_context_data(**kwargs)
if context['negotiation_bid_form'].is_valid():
instance = context['negotiation_bid_form'].save()
messages.success(request, 'Your offer bid #{0} has been submitted.'.format(instance.pk))
elif context['offer_attachment_form'].is_valid():
instance = context['offer_attachment_form'].save()
messages.success(request, 'Your offer attachment #{0} has been submitted.'.format(instance.pk))
# advise of any errors
else
messages.error('Error(s) encountered during form processing, please review below and re-submit')
return self.render_to_response(context)
html模板效果如下：
...
<form id='offer_negotiation_form' class="content-form" action='./' enctype="multipart/form-data" method="post" accept-charset="utf-8">
{% csrf_token %}
{{ negotiation_bid_form.as_p }}
...
<input type="submit" name="{{ negotiation_bid_form.prefix }}-submit-counter-bid"
title="Submit a counter bid"
value="Counter Bid" />
</form>
...
<form id='offer-attachment-form' class="content-form" action='./' enctype="multipart/form-data" method="post" accept-charset="utf-8">
{% csrf_token %}
{{ offer_attachment_form.as_p }}
<input name="{{ offer_attachment_form.prefix }}-submit" type="submit" value="Submit" />
</form>
...