我有一个用于两个视图的表单。一个保存,一个编辑/更新。我用它来检查独特的条件。 (表格有三个字段。三个字母的组合只能来一次。)
现在,当我使用相同的表单时,它会检查两个视图的这种情况 - 保存和编辑。这导致在编辑视图中抛出错误的表单,表明该值已存在。
我怎样才能使用这种干净的方法,它会检查保存视图的验证,但不会检查编辑视图。
修改视图:
@login_required
def permissionEditView(request, pk):
data = models.PermissionModel.objects.get(pk=pk)
p_form = forms.PermissionForm(instance=data)
if request.method == 'POST':
p_form = forms.PermissionForm(request.POST, instance=data)
if p_form.is_valid():
p_form.save()
messages.success(request, 'Permission updated successfully.')
return redirect(companyProfileView)
return render(request, 'company_profile.html', {'p_form': p_form})
保存视图:
def permissionFormView(request):
p_form = forms.PermissionForm()
if request.method == 'POST':
p_form = forms.PermissionForm(request.POST)
if p_form.is_valid():
p_form.save()
messages.success(request, 'Permission added successfully.')
return redirect(companyProfileView)
return render(request, 'company_profile.html', {'p_form': p_form})
用干净的方法表格:
class PermissionForm(forms.ModelForm):
class Meta:
model = models.PermissionModel
fields = '__all__'
def clean(self):
role = self.cleaned_data.get('role_name')
feature = self.cleaned_data.get('feature')
if models.PermissionModel.objects.filter(role_name=role, feature=feature).exists():
raise forms.ValidationError('Permission exists.')
def __init__(self, *args, **kwargs):
super(PermissionForm, self).__init__(*args, **kwargs)
for field in self.fields:
self.fields[field].widget.attrs = {'class': 'form-control form-control-sm'}
答案 0 :(得分:2)
def clean(self):
role = self.cleaned_data.get('role_name')
feature = self.cleaned_data.get('feature')
if not form.instance:
if models.PermissionModel.objects.filter(role_name=role, feature=feature).exists():
raise forms.ValidationError('Permission exists.')
您可以在clean方法中检查实例