Kan*_*and 5 python forms django django-formwizard python-3.x
I am using wizard forms in django. I want to create a form field only if answer to some other form field is marked "yes" otherwise I don't want this new form field. How can I do this ?
I have tried some other answers related to this but most of them tells about how to mark field required or not but I want to display that field only if answer to other field is "Yes"
Django Form Wizard with Conditional Questions
In below code I want to display field "Pool2" only if answer to field "Pool" is marked "yes" otherwise I don't want that field. Basically I want to get some details of pool in field "Pool2" if there is pool in user's house.
forms.py
class ListingForm2(forms.Form):
Pool = (
("Yes","Yes"),
("No","No"),
)
Pool = forms.ChoiceField(choices = Pool,label = "Does your property have a pool ?")
Pool2 = forms.CharField(required=False)
Views.py
class ListingWizard(SessionWizardView):
template_name = 'listing_form.html'
form_list = [ListingForm1,ListingForm2,ListingForm3,ListingForm4]
def done(self, form_list, **kwargs):
save_data(form.cleaned_data for form in form_list)
return render(self.request,'done.html',{
'form_data' : [form.cleaned_data for form in form_list],
})
小智 8
你要做的事情必须用 JavaScript 来完成，你可以只用 Django 帖子来完成，但这不是正确的方法。
看一下这个：
class BookForm(forms.ModelForm):
has_sequel = forms.BooleanField(initial=True)
class Meta:
model = Book
fields = ['author', 'length', 'has_sequel', 'sequel']
class Media:
js = ('book_form.js', )
def clean(self):
if self.cleaned_data['has_sequel'] and self.cleaned_data['sequel'] is None:
raise ValidationError('You should indicate the sequel if the book has one.')
class BookView(FormView):
template_name = 'book_form.html'
form_class = BookForm
success_url = '/done/'
这段代码包含一个带有表单的 Javascript，这样你就可以用它自己的 Javascript 重用表单，Javascript 代码应该是这样的（你可能需要根据你在模板中打印表单的方式来更改 javascript）：
$(document).ready(function() {
$('#id_has_sequel')[0].addEventListener('change', (event) => {
let sequelField = $('#id_sequel').parents('p');
if (event.target.checked) {
sequelField.show();
} else {
sequelField.hide();
}
})
});
模板应该是这样的：
{% load static %}
<head>
<title>Book form</title>
<script src="{% static 'jquery-3.4.1.min.js' %}"></script>
{{ form.media }}
</head>
<form method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Send message">
</form>
如果您有任何问题，请随时提出，但尝试在没有 Javascript 的情况下执行此操作并不是一个好方法。同样，您会发现某种 Django 小部件也将使用 Javascript。
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