forms.py
class BandForm(forms.ModelForm):
time_from = forms.ChoiceField(choices=[(8, "08:00"),(9, "09:00"),(10, "10.00"),(11, "11:00"),
(12, "12:00"),(13, "13:00"),(14, "14:00"),(15, "15:00"),
(16, "16:00"),(17, "17:00"),(18, "18:00"),(19, "19:00"),
(20, "20:00"),(21, "21:00"),(22, "22:00"),(23, "23:00")])
time_to = forms.ChoiceField(choices=[(8, "08:00"),(9, "09:00"),(10, "10:00"),(11, "11:00"),
(12, "12:00"),(13, "13:00"),(14, "14:00"),(15, "15:00"),
(16, "16:00"),(17, "17:00"),(18, "18:00"),(19, "19:00"),
(20, "20:00"),(21, "21:00"),(22, "22:00"),(23, "23:00")])
class Meta:
model = Entry1
exclude = ('created','date')
views.py的一部分
if request.method == "POST":
form = BandForm(request.POST)
if form.is_valid():
form = form.save(commit=False)
if year and month and day:
form.date = datetime.date(int(year),int(month),int(day))
form.save()
假设我想在forms.py中为我的班级Bandform
做一些验证 def clean_fieldname(self): ....
,
通常会传递这样的参数 - self.cleaned_data.get('field_name')
。因此,如果我尝试获取self.cleaned_data.get('time_from') - 每个事情都很有效。但是如果我尝试获取self.cleaned_data.get('date'),我会返回None。
为什么?
答案
Django Modelform (with excluded field) 从Post i提供的唯一有点不清楚的是,你必须访问forms.py中的实例作为self.instance.fieldname但不能访问self.cleaned_data.get('fieldname')。
答案 0 :(得分:0)
排除在外:
exclude = ('created','date')
您排除date
字段在表单中可见。这可以解释为什么您无法访问cleaning_data中的date
。尝试从排除元组中删除date
并在模板中呈现它以查看它是否显示。