我有一个这个模型:
class Fleet(models.Model):
company = models.ForeignKey("Company", editable=False)
aircraft = models.ForeignKey("Aircraft")
size = models.IntegerField(default=1)
description = models.TextField(blank=True)
def __unicode__(self):
return u"%s" % (self.aircraft, )
然后是一个基于这个模型的表格:
class FleetForm(ModelForm):
class Meta:
model = Fleet
exclude = ('company', )
当我在模板中使用此表单时,未添加“公司”字段,这是预期的。但该字段必须为空白!= True。
我使用这种形式的方式,company 属性在视图函数中总是已知的,因为它是从 URL 传递的。如何在保存之前将公司添加到视图功能的表单中?
这是我的看法:
def new_fleet(request, company_id):
from forms import FleetForm
company = Company.objects.get(pk=company_id)
if request.method == "POST":
form = FleetForm(request.POST,)
form.company = company #doesn't work
form = form.save(commit=False) #can't do this because the form
form.company = company #doesn't validate (company is not set)
if not form.errors:
form.save()
else:
fleet = Fleet(company=company) #pointless because the company widget
form = FleetForm(instance=fleet) #isn't created but eh whatever