Django 内联表单集自定义验证一次仅验证单个表单集
我正在使用 Django,并且有一个带有两个附加内联表单集的表单。我想验证每个表单集是否至少包含一个填充表单。我已经编写了这样的代码,但它一次只适用于每个表单集。如果我提交的表单没有填充任何表单集表单,则只有第一个表单显示验证错误。如果我随后填充第一个表单集表单,并将第二个表单留空,则第二个表单会出错。
如果两种形式都无效,我希望错误出现在两种形式上。
这些表单只是标准的 ModelForm 实例。这是我的观点:
class RequiredBaseInlineFormSet(BaseInlineFormSet):
def clean(self):
self.validate_unique()
if any(self.errors):
return
if not self.forms[0].has_changed():
raise forms.ValidationError("At least one %s is required" % self.model._meta.verbose_name)
def create(request):
profile_form = ProfileForm(request.POST or None)
EmailFormSet = inlineformset_factory(Profile, Email, formset=RequiredBaseInlineFormSet, max_num=5, extra=5, can_delete=False)
email_formset = EmailFormSet(request.POST or None)
PhoneFormSet = inlineformset_factory(Profile, Phone, formset=RequiredBaseInlineFormSet, max_num=5, extra=5, can_delete=False)
phone_formset = PhoneFormSet(request.POST or None)
if profile_form.is_valid() and email_formset.is_valid() and phone_formset.is_valid():
profile = profile_form.save()
emails = email_formset.save(commit=False)
for email in emails:
email.profile = profile
email.save()
phones = phone_formset.save(commit=False)
for phone in phones:
phone.profile = profile
phone.save()
messages.add_message(request, messages.INFO, 'Profile successfully saved')
return render_to_response(
'add.html', {
'profile_form': profile_form,
'email_formset': email_formset,
'phone_formset': phone_formset
}, context_instance = RequestContext(request)
)
这是我的模板表单,以防它有用:
<form action="" method="post" accept-charset="utf-8">
{{ email_formset.management_form }}
{{ phone_formset.management_form }}
{{ profile_form|as_uni_form }}
<div class="formset-group" id="email_formset">
{{ email_formset.non_form_errors }}
{% for email_form in email_formset.forms %}
<div class='form'>
{{ email_form|as_uni_form }}
</div>
{% endfor %}
</div>
<div class="formset-group" id="phone_formset">
{{ phone_formset.non_form_errors }}
{% for phone_form in phone_formset.forms %}
<div class='form'>
{{ phone_form|as_uni_form }}
</div>
{% endfor %}
</div>
<input type="submit" value="Save Profile" id="submit">
</form>
I'm using Django and have a form with two additional inline formsets. I want to validate that each formset contains at least one populated form. I've written code such that this works but it only works for each formset at a time. If I submit the form without any formset forms populated, only the first one shows a validation error. If I then populate the first formset form, and leave the second one blank, the second one errors.
I want errors to appear on both forms if both are not valid.
The forms are just standard ModelForm
instances. Here's my view:
class RequiredBaseInlineFormSet(BaseInlineFormSet):
def clean(self):
self.validate_unique()
if any(self.errors):
return
if not self.forms[0].has_changed():
raise forms.ValidationError("At least one %s is required" % self.model._meta.verbose_name)
def create(request):
profile_form = ProfileForm(request.POST or None)
EmailFormSet = inlineformset_factory(Profile, Email, formset=RequiredBaseInlineFormSet, max_num=5, extra=5, can_delete=False)
email_formset = EmailFormSet(request.POST or None)
PhoneFormSet = inlineformset_factory(Profile, Phone, formset=RequiredBaseInlineFormSet, max_num=5, extra=5, can_delete=False)
phone_formset = PhoneFormSet(request.POST or None)
if profile_form.is_valid() and email_formset.is_valid() and phone_formset.is_valid():
profile = profile_form.save()
emails = email_formset.save(commit=False)
for email in emails:
email.profile = profile
email.save()
phones = phone_formset.save(commit=False)
for phone in phones:
phone.profile = profile
phone.save()
messages.add_message(request, messages.INFO, 'Profile successfully saved')
return render_to_response(
'add.html', {
'profile_form': profile_form,
'email_formset': email_formset,
'phone_formset': phone_formset
}, context_instance = RequestContext(request)
)
And here's my template's form, incase it's useful:
<form action="" method="post" accept-charset="utf-8">
{{ email_formset.management_form }}
{{ phone_formset.management_form }}
{{ profile_form|as_uni_form }}
<div class="formset-group" id="email_formset">
{{ email_formset.non_form_errors }}
{% for email_form in email_formset.forms %}
<div class='form'>
{{ email_form|as_uni_form }}
</div>
{% endfor %}
</div>
<div class="formset-group" id="phone_formset">
{{ phone_formset.non_form_errors }}
{% for phone_form in phone_formset.forms %}
<div class='form'>
{{ phone_form|as_uni_form }}
</div>
{% endfor %}
</div>
<input type="submit" value="Save Profile" id="submit">
</form>
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为您希望进行验证的每个表单调用 is_valid() 函数。在您的示例中,您执行 if a.is_valid 和 b.is_valid anc c.is_valid... 如果 a 为 false,则 b 和 c 将永远不会被调用。尝试一些不同的东西,比如:
call the is_valid() function for each form that you want validation to occur on. In your example you do if a.is_valid and b.is_valid anc c.is_valid... If a is false, b and c will never get called. Try something different, like:
我遇到了类似的问题,问题是由于 Django 处理额外表单字段的方式,额外的表单没有得到验证。看一下:Django Formset.is_valid() 对于额外表单失败
I had a similar issue and the problem was that extra forms were not being validated due to how Django handles extra form fields. Take a look: Django Formset.is_valid() failing for extra forms