Django Forms:当应用两个验证时，验证表单错误

Question

我有一个'start=forms.DateInput',end=forms.DateInput和active=forms.CheckboxInput的表单，但是当我试图验证这些字段时，我有这些错误。

KeyError at /employee/edit/70000007/
'end'

…

if form.is_valid():

…

end = self.cleaned_data['end']

但是当只应用一个验证器时，这很好。

def clean_end(self):
start = self.cleaned_data['start']
end = self.cleaned_data['end']
if end < start:
raise forms.ValidationError('end date cannot be less than start date.')       
return end
def clean_active(self):
active = self.cleaned_data['active']
end = self.cleaned_data['end']
if active and end:
raise forms.ValidationError('active employee should cannot be end date')
return active

谢谢你的帮助。

Answer 1

使用clean方法可以正常工作。

# forms.py    
def clean(self):
cleaned_data = super().clean()
start = cleaned_data.get('start')
end = cleaned_data.get('end')
active = cleaned_data.get('active')
if end < start:
raise forms.ValidationError('end date cannot be less than start date.')
if end and active:
raise forms.ValidationError('active employee should cannot be end date.')

# template.html

{% for error in form.non_field_errors %}
{{error}}
{% endfor %}