Question

I try to fill empty fields when I save model form, but unfortunately, it doesn't work properly.

this is my view:

     def bylaw_save(request):
        form = BylawForm(initial={'who_created': request.user.username})
        if request.method == 'POST':
            form = BylawForm(request.POST)
            if form.is_valid():
                gdn = GlobalDocNumber.objects.get(pk=1)
                gdn.gdn += 1
                gdn.save()
                raspr_num = form.cleaned_data['raspr_num'][:]
                raspr_num = raspr_num.split('/')
                bylaw = form.save(commit=False)
                bylaw.district = 'unfilled'
                bylaw.department = 'unfilled'
                bylaw.performer = 'unfilled'
                bylaw.check_type = 'unfilled'
                bylaw.save()
                return bylaw_form(request, msg='test')
            else:
                return bylaw_form(request, msg='test')
        return render(request, 'bylaw/bylaw_form.html', {'form': form})

this is fraction of my form:

district = ModelChoiceField(required=False, queryset=DistrictsMenu.objects.all(), to_field_name="district",
                            widget=Select(attrs={'id': "district", 'class': 'form-control col-6'}))

department = ModelChoiceField(required=False, queryset=DepartmentsMenu.objects.all(), to_field_name="department",
                              widget=Select(attrs={'id':"department", 'class': "form-control col-6"}))

UPDATE: This is my model with default='Unfilled', according to Arthur M and Rohan suggestions (But it also doesn't work, it gives me a "NOT NULL constraint failed: bylaw_bylawmodel.department" error, in this case I don't fill department field):

class BylawModel(models.Model):

    raspr_date = models.DateField()
    district = models.CharField(max_length=255, default='Unfilled')
    department = models.CharField(max_length=255, default='Unfilled')
    organization = models.CharField(max_length=255, default='Unfilled')
    inn = models.IntegerField()
    performer = models.CharField(max_length=255, default='Unfilled')
    check_type = models.CharField(max_length=255)
    date_proved = models.DateField()
    raspr_num = models.CharField(max_length=255, unique=True)
    who_created = models.CharField(max_length=255)

when I save this from, it always fills with 'unfilled'. How can I fill empty values only if they are really empty?

Answer 1

这样做 bylaw.fieldName = 'unfilled'您正在覆盖从表单发送的值。

如果您不想在模型中添加默认值（我建议这样做），则可以添加一个简单的：

if not bylaw.fieldName:
  bylaw.fieldName = 'unfilled'

对于您的每个字段。

How to fill empty fields when I save form from POST

1 个答案: