Question

views.py

report = Report.objects.get(user=user.id)
reportnotesform=ReportNotes(instance=report)
if request.method == 'POST':
    locationnotesform=LocationNotes(request.POST,instance=report)
    if locationnotesform.is_valid():
        locationnotesform.save()

forms.py

class LocationNotes(forms.ModelForm):
    other_location = forms.CharField(widget=forms.TextInput(attrs={'class':'ir-textbox'}))
    location_description = forms.CharField(widget=forms.Textarea(attrs={'style':'width:20em'}))

models.py

class Report(models.Model):
    user = models.ForeignKey(User, null=False)
    location_description = models.TextField('Location description', null=True, blank=True)
    other_location = models.CharField('Other', max_length=100, null=True, blank=True)

我可以保存数据，表单处于更新模式。

如果我删除字段中的所有数据并单击“保存”，则表示该字段未保存，表示它未采用空值。

保存空格，但null不保存。我希望它也接受空值。

Answer 1

如果我理解正确，请在LocationNotes表格中other_location和location_description选择：

other_location = forms.CharField(
    widget=forms.TextInput(attrs={'class':'ir-textbox'}),
    required=False)

Answer 2

你的模型很好，但形式会给你错误。将required=False传递给表单中的字段定义。

class LocationNotes(forms.ModelForm):
    other_location = forms.CharField(required=False, widget=forms.TextInput(attrs={'class':'ir-textbox'}))
    location_description = forms.CharField(required=False, widget=forms.Textarea(attrs={'style':'width:20em'}))

null =模型中的True不接受空值

2 个答案: