阻止Django从表单集中保存特定的表单

Question

我正在使用Django表单集，并试图阻止保存某些可能被部分填充的表单。

形式：

class WeeksForm(forms.ModelForm):
monday = forms.DecimalField(required=False)
tuesday = forms.DecimalField(required=False)
wednesday = forms.DecimalField(required=False)
thursday = forms.DecimalField(required=False)
friday = forms.DecimalField(required=False)
saturday = forms.DecimalField(required=False)
sunday = forms.DecimalField(required=False)
class Meta:
model = Weeks
fields = ('activity', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday')

表单集：

WeeksFormset = modelformset_factory(Weeks, form=WeeksForm, extra=10, can_delete=True)

我使用JS动态生成表单，它会自动填充字段"activity"，但问题是，有时用户可能会决定不填写其他字段(以工作日、"星期一"、"星期二"等命名的字段(；"空"；表单(并不是真的是空的，因为"活动"字段已经填写(，我对保存不感兴趣。

在我看来，我试图以某种方式防止这些表格被保存：

views.py

if request.method == 'POST':
formset = WeeksFormset(request.POST)
if formset.is_valid():
for form in formset.forms:
# From here is pseudocode, I want that if a form has all the weekdays empty that form is not saved
if form.instance.monday and form.instance.tuesday and ... form.instance.sunday == None:
form.delete()
# End of pseudocode, this approach didn't work
form.instance.user = request.user 
formset.save()
return HttpResponseRedirect(reverse("time")

我真的很挣扎，我尝试了几种方法都没有成功。

Answer 1

只需保存匹配的表单：

if request.method == 'POST':
formset = WeeksFormset(request.POST)
if formset.is_valid():
for form in formset.forms:
instance = form.instance
if any(
f is not None
for f in [
instance.monday,
instance.tuesday,
instance.wednesday,
instance.thursday,
instance.friday,
instance.saturday,
instance.sunday,
]
):
instance.user = request.user
form.save()
# do *not* save the formset
return redirect('time')